diff --git a/HEADER.txt b/HEADER.txt
new file mode 100644
index 000000000..9f7cf8e97
--- /dev/null
+++ b/HEADER.txt
@@ -0,0 +1,14 @@
+Copyright (C) 2018 Velocity Contributors
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
index 44ba3e38a..f288702d2 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,7 +1,674 @@
-Copyright 2018 Velocity team
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
 
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
 
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+                            Preamble
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
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+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/api/HEADER.txt b/api/HEADER.txt
new file mode 100644
index 000000000..15aa7e2b4
--- /dev/null
+++ b/api/HEADER.txt
@@ -0,0 +1,4 @@
+Copyright (C) 2018 Velocity Contributors
+
+The Velocity API is licensed under the terms of the MIT License. For more details,
+reference the LICENSE file in the api top-level directory.
\ No newline at end of file
diff --git a/api/LICENSE b/api/LICENSE
new file mode 100644
index 000000000..3bd76aa5a
--- /dev/null
+++ b/api/LICENSE
@@ -0,0 +1,7 @@
+Copyright 2018 Velocity Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/api/build.gradle b/api/build.gradle
index 23864b6d0..273f61add 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -4,6 +4,7 @@ plugins {
     id 'checkstyle'
 }
 
+apply plugin: 'org.cadixdev.licenser'
 apply from: '../gradle/checkstyle.gradle'
 apply from: '../gradle/publish.gradle'
 apply plugin: 'com.github.johnrengelman.shadow'
@@ -13,6 +14,10 @@ java {
     targetCompatibility = JavaVersion.VERSION_1_8
 }
 
+license {
+    header = project.file('HEADER.txt')
+}
+
 sourceSets {
     ap {
         compileClasspath += main.compileClasspath + main.output
diff --git a/api/src/ap/java/com/velocitypowered/api/plugin/ap/PluginAnnotationProcessor.java b/api/src/ap/java/com/velocitypowered/api/plugin/ap/PluginAnnotationProcessor.java
index eef691ba4..6fd77ddf3 100644
--- a/api/src/ap/java/com/velocitypowered/api/plugin/ap/PluginAnnotationProcessor.java
+++ b/api/src/ap/java/com/velocitypowered/api/plugin/ap/PluginAnnotationProcessor.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin.ap;
 
 import com.google.gson.Gson;
diff --git a/api/src/ap/java/com/velocitypowered/api/plugin/ap/SerializedPluginDescription.java b/api/src/ap/java/com/velocitypowered/api/plugin/ap/SerializedPluginDescription.java
index 9e0cf7d5a..e785d9adb 100644
--- a/api/src/ap/java/com/velocitypowered/api/plugin/ap/SerializedPluginDescription.java
+++ b/api/src/ap/java/com/velocitypowered/api/plugin/ap/SerializedPluginDescription.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin.ap;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/command/BrigadierCommand.java b/api/src/main/java/com/velocitypowered/api/command/BrigadierCommand.java
index edf4d6b2e..da40f48a5 100644
--- a/api/src/main/java/com/velocitypowered/api/command/BrigadierCommand.java
+++ b/api/src/main/java/com/velocitypowered/api/command/BrigadierCommand.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/command/Command.java b/api/src/main/java/com/velocitypowered/api/command/Command.java
index 4b017b9c3..ea095327d 100644
--- a/api/src/main/java/com/velocitypowered/api/command/Command.java
+++ b/api/src/main/java/com/velocitypowered/api/command/Command.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import com.google.common.collect.ImmutableList;
diff --git a/api/src/main/java/com/velocitypowered/api/command/CommandInvocation.java b/api/src/main/java/com/velocitypowered/api/command/CommandInvocation.java
index 20cc923b0..6f3382edb 100644
--- a/api/src/main/java/com/velocitypowered/api/command/CommandInvocation.java
+++ b/api/src/main/java/com/velocitypowered/api/command/CommandInvocation.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/command/CommandManager.java b/api/src/main/java/com/velocitypowered/api/command/CommandManager.java
index afe9356d5..f53a44360 100644
--- a/api/src/main/java/com/velocitypowered/api/command/CommandManager.java
+++ b/api/src/main/java/com/velocitypowered/api/command/CommandManager.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import com.velocitypowered.api.event.command.CommandExecuteEvent;
diff --git a/api/src/main/java/com/velocitypowered/api/command/CommandMeta.java b/api/src/main/java/com/velocitypowered/api/command/CommandMeta.java
index 65965e0d1..d731e6ec4 100644
--- a/api/src/main/java/com/velocitypowered/api/command/CommandMeta.java
+++ b/api/src/main/java/com/velocitypowered/api/command/CommandMeta.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import com.mojang.brigadier.tree.CommandNode;
diff --git a/api/src/main/java/com/velocitypowered/api/command/CommandSource.java b/api/src/main/java/com/velocitypowered/api/command/CommandSource.java
index 2402976cd..c37105075 100644
--- a/api/src/main/java/com/velocitypowered/api/command/CommandSource.java
+++ b/api/src/main/java/com/velocitypowered/api/command/CommandSource.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import com.velocitypowered.api.permission.PermissionSubject;
diff --git a/api/src/main/java/com/velocitypowered/api/command/InvocableCommand.java b/api/src/main/java/com/velocitypowered/api/command/InvocableCommand.java
index 80125f25b..e6183e52d 100644
--- a/api/src/main/java/com/velocitypowered/api/command/InvocableCommand.java
+++ b/api/src/main/java/com/velocitypowered/api/command/InvocableCommand.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import com.google.common.collect.ImmutableList;
diff --git a/api/src/main/java/com/velocitypowered/api/command/RawCommand.java b/api/src/main/java/com/velocitypowered/api/command/RawCommand.java
index 4a2dd58bc..9ff291268 100644
--- a/api/src/main/java/com/velocitypowered/api/command/RawCommand.java
+++ b/api/src/main/java/com/velocitypowered/api/command/RawCommand.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import java.util.List;
diff --git a/api/src/main/java/com/velocitypowered/api/command/SimpleCommand.java b/api/src/main/java/com/velocitypowered/api/command/SimpleCommand.java
index 2233e2a9b..c51e33963 100644
--- a/api/src/main/java/com/velocitypowered/api/command/SimpleCommand.java
+++ b/api/src/main/java/com/velocitypowered/api/command/SimpleCommand.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.command;
 
 import org.checkerframework.checker.nullness.qual.NonNull;
diff --git a/api/src/main/java/com/velocitypowered/api/command/package-info.java b/api/src/main/java/com/velocitypowered/api/command/package-info.java
index 9d323f55a..410f8eacc 100644
--- a/api/src/main/java/com/velocitypowered/api/command/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/command/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides a command framework.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/event/EventHandler.java b/api/src/main/java/com/velocitypowered/api/event/EventHandler.java
index f6005cdf2..2db7c1fc2 100644
--- a/api/src/main/java/com/velocitypowered/api/event/EventHandler.java
+++ b/api/src/main/java/com/velocitypowered/api/event/EventHandler.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/event/EventManager.java b/api/src/main/java/com/velocitypowered/api/event/EventManager.java
index 97ff4e188..6bc15f7e0 100644
--- a/api/src/main/java/com/velocitypowered/api/event/EventManager.java
+++ b/api/src/main/java/com/velocitypowered/api/event/EventManager.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event;
 
 import java.util.concurrent.CompletableFuture;
diff --git a/api/src/main/java/com/velocitypowered/api/event/PostOrder.java b/api/src/main/java/com/velocitypowered/api/event/PostOrder.java
index d8923d363..755632cce 100644
--- a/api/src/main/java/com/velocitypowered/api/event/PostOrder.java
+++ b/api/src/main/java/com/velocitypowered/api/event/PostOrder.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/event/ResultedEvent.java b/api/src/main/java/com/velocitypowered/api/event/ResultedEvent.java
index cbc6d273f..6a5cbb06d 100644
--- a/api/src/main/java/com/velocitypowered/api/event/ResultedEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/ResultedEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/Subscribe.java b/api/src/main/java/com/velocitypowered/api/event/Subscribe.java
index 4e6299d39..18b295fb8 100644
--- a/api/src/main/java/com/velocitypowered/api/event/Subscribe.java
+++ b/api/src/main/java/com/velocitypowered/api/event/Subscribe.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event;
 
 import java.lang.annotation.ElementType;
diff --git a/api/src/main/java/com/velocitypowered/api/event/command/CommandExecuteEvent.java b/api/src/main/java/com/velocitypowered/api/event/command/CommandExecuteEvent.java
index b899616d1..72ee2f8cd 100644
--- a/api/src/main/java/com/velocitypowered/api/event/command/CommandExecuteEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/command/CommandExecuteEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.command;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/command/PlayerAvailableCommandsEvent.java b/api/src/main/java/com/velocitypowered/api/event/command/PlayerAvailableCommandsEvent.java
index ef9939fbc..ed006537e 100644
--- a/api/src/main/java/com/velocitypowered/api/event/command/PlayerAvailableCommandsEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/command/PlayerAvailableCommandsEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.command;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/ConnectionHandshakeEvent.java b/api/src/main/java/com/velocitypowered/api/event/connection/ConnectionHandshakeEvent.java
index 252668bea..64ba04b00 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/ConnectionHandshakeEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/ConnectionHandshakeEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.connection;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/DisconnectEvent.java b/api/src/main/java/com/velocitypowered/api/event/connection/DisconnectEvent.java
index 5dded1649..773a39146 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/DisconnectEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/DisconnectEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.connection;
 
 import static com.velocitypowered.api.event.connection.DisconnectEvent.LoginStatus.CANCELLED_BY_PROXY;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/LoginEvent.java b/api/src/main/java/com/velocitypowered/api/event/connection/LoginEvent.java
index c204d9027..e48e92b08 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/LoginEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/LoginEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.connection;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/PluginMessageEvent.java b/api/src/main/java/com/velocitypowered/api/event/connection/PluginMessageEvent.java
index 7f1063b1f..917c70973 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/PluginMessageEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/PluginMessageEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.connection;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/PostLoginEvent.java b/api/src/main/java/com/velocitypowered/api/event/connection/PostLoginEvent.java
index e9b7d08b0..e6a7e37de 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/PostLoginEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/PostLoginEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.connection;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/PreLoginEvent.java b/api/src/main/java/com/velocitypowered/api/event/connection/PreLoginEvent.java
index 018e4f2fb..b30ed4ca8 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/PreLoginEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/PreLoginEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.connection;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/connection/package-info.java b/api/src/main/java/com/velocitypowered/api/event/connection/package-info.java
index 8f02c2b15..ed94ee839 100644
--- a/api/src/main/java/com/velocitypowered/api/event/connection/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/event/connection/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides events for handling incoming connections to the proxy and logins.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/event/package-info.java b/api/src/main/java/com/velocitypowered/api/event/package-info.java
index 34819f6ba..7fdc617ec 100644
--- a/api/src/main/java/com/velocitypowered/api/event/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/event/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides core support for handling events with Velocity. Subpackages include event classes.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/event/permission/PermissionsSetupEvent.java b/api/src/main/java/com/velocitypowered/api/event/permission/PermissionsSetupEvent.java
index f7232a1d0..99ba8c841 100644
--- a/api/src/main/java/com/velocitypowered/api/event/permission/PermissionsSetupEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/permission/PermissionsSetupEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.permission;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/permission/package-info.java b/api/src/main/java/com/velocitypowered/api/event/permission/package-info.java
index 402d8db84..9f1eb764c 100644
--- a/api/src/main/java/com/velocitypowered/api/event/permission/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/event/permission/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides events to handle setting up permissions for permission subjects.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/GameProfileRequestEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/GameProfileRequestEvent.java
index 4c209056a..135de25d0 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/GameProfileRequestEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/GameProfileRequestEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/KickedFromServerEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/KickedFromServerEvent.java
index f37560dd3..ad4049bdf 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/KickedFromServerEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/KickedFromServerEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/PlayerChannelRegisterEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/PlayerChannelRegisterEvent.java
index d9c790eed..21e4efb2d 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/PlayerChannelRegisterEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/PlayerChannelRegisterEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/PlayerChatEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/PlayerChatEvent.java
index ef77c96a4..2ddcd5e29 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/PlayerChatEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/PlayerChatEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/PlayerChooseInitialServerEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/PlayerChooseInitialServerEvent.java
index 3ff289363..3fc02107b 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/PlayerChooseInitialServerEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/PlayerChooseInitialServerEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/PlayerModInfoEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/PlayerModInfoEvent.java
index 8c3065b4e..7f3c301e3 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/PlayerModInfoEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/PlayerModInfoEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.MoreObjects;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/PlayerResourcePackStatusEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/PlayerResourcePackStatusEvent.java
index 71c2427ed..5bffcce89 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/PlayerResourcePackStatusEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/PlayerResourcePackStatusEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/PlayerSettingsChangedEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/PlayerSettingsChangedEvent.java
index fab4cf7f1..bff9c5d5e 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/PlayerSettingsChangedEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/PlayerSettingsChangedEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.MoreObjects;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/ServerConnectedEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/ServerConnectedEvent.java
index 0609798c1..3534133ef 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/ServerConnectedEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/ServerConnectedEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/ServerPostConnectEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/ServerPostConnectEvent.java
index e638df49e..c3c34eea9 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/ServerPostConnectEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/ServerPostConnectEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.annotations.Beta;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/ServerPreConnectEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/ServerPreConnectEvent.java
index 2bcb10bd6..04d0538ac 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/ServerPreConnectEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/ServerPreConnectEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/TabCompleteEvent.java b/api/src/main/java/com/velocitypowered/api/event/player/TabCompleteEvent.java
index f033d954e..14bb63554 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/TabCompleteEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/TabCompleteEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.player;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/api/src/main/java/com/velocitypowered/api/event/player/package-info.java b/api/src/main/java/com/velocitypowered/api/event/player/package-info.java
index 1d0513b60..4cada542b 100644
--- a/api/src/main/java/com/velocitypowered/api/event/player/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/event/player/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides events for handling actions performed by players.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyInitializeEvent.java b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyInitializeEvent.java
index 7a439fa8f..80c5b8405 100644
--- a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyInitializeEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyInitializeEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.proxy;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyPingEvent.java b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyPingEvent.java
index f89cfcb74..0df9e6650 100644
--- a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyPingEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyPingEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.proxy;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyReloadEvent.java b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyReloadEvent.java
index ec1ed1ad0..dbbb709f5 100644
--- a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyReloadEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyReloadEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.proxy;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyShutdownEvent.java b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyShutdownEvent.java
index dc99fde0c..49183600a 100644
--- a/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyShutdownEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/proxy/ProxyShutdownEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.proxy;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/event/proxy/package-info.java b/api/src/main/java/com/velocitypowered/api/event/proxy/package-info.java
index 3b7aab6b7..f18ae5a33 100644
--- a/api/src/main/java/com/velocitypowered/api/event/proxy/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/event/proxy/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides events for handling the lifecycle of the proxy.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/event/query/ProxyQueryEvent.java b/api/src/main/java/com/velocitypowered/api/event/query/ProxyQueryEvent.java
index 721a2f74b..2d3cf315a 100644
--- a/api/src/main/java/com/velocitypowered/api/event/query/ProxyQueryEvent.java
+++ b/api/src/main/java/com/velocitypowered/api/event/query/ProxyQueryEvent.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.event.query;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/event/query/package-info.java b/api/src/main/java/com/velocitypowered/api/event/query/package-info.java
index 42fb5a47f..5f1f08a01 100644
--- a/api/src/main/java/com/velocitypowered/api/event/query/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/event/query/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides events for handling GS4 queries.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java b/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
index b6e3b22eb..8b3632f9f 100644
--- a/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
+++ b/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.network;
 
 import com.google.common.collect.ImmutableList;
diff --git a/api/src/main/java/com/velocitypowered/api/permission/PermissionFunction.java b/api/src/main/java/com/velocitypowered/api/permission/PermissionFunction.java
index 98f2cc707..7e9f2c857 100644
--- a/api/src/main/java/com/velocitypowered/api/permission/PermissionFunction.java
+++ b/api/src/main/java/com/velocitypowered/api/permission/PermissionFunction.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.permission;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/permission/PermissionProvider.java b/api/src/main/java/com/velocitypowered/api/permission/PermissionProvider.java
index d6fdc507e..18f3b7f44 100644
--- a/api/src/main/java/com/velocitypowered/api/permission/PermissionProvider.java
+++ b/api/src/main/java/com/velocitypowered/api/permission/PermissionProvider.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.permission;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/permission/PermissionSubject.java b/api/src/main/java/com/velocitypowered/api/permission/PermissionSubject.java
index 85a7a0958..ec7171e9f 100644
--- a/api/src/main/java/com/velocitypowered/api/permission/PermissionSubject.java
+++ b/api/src/main/java/com/velocitypowered/api/permission/PermissionSubject.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.permission;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/permission/Tristate.java b/api/src/main/java/com/velocitypowered/api/permission/Tristate.java
index 65df88572..70653eef6 100644
--- a/api/src/main/java/com/velocitypowered/api/permission/Tristate.java
+++ b/api/src/main/java/com/velocitypowered/api/permission/Tristate.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.permission;
 
 import org.checkerframework.checker.nullness.qual.Nullable;
diff --git a/api/src/main/java/com/velocitypowered/api/permission/package-info.java b/api/src/main/java/com/velocitypowered/api/permission/package-info.java
index a68255248..7e367ab82 100644
--- a/api/src/main/java/com/velocitypowered/api/permission/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/permission/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides the basic building blocks for a custom permission system.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/Dependency.java b/api/src/main/java/com/velocitypowered/api/plugin/Dependency.java
index c004563db..03412ec16 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/Dependency.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/Dependency.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin;
 
 import java.lang.annotation.Retention;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/InvalidPluginException.java b/api/src/main/java/com/velocitypowered/api/plugin/InvalidPluginException.java
index ac48c06fe..46530ef73 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/InvalidPluginException.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/InvalidPluginException.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin;
 
 public class InvalidPluginException extends Exception {
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/Plugin.java b/api/src/main/java/com/velocitypowered/api/plugin/Plugin.java
index 2ed9970f7..04e3d511d 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/Plugin.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/Plugin.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin;
 
 import java.lang.annotation.ElementType;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/PluginContainer.java b/api/src/main/java/com/velocitypowered/api/plugin/PluginContainer.java
index 1c0e8a422..1f6a61b33 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/PluginContainer.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/PluginContainer.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin;
 
 import java.util.Optional;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/PluginDescription.java b/api/src/main/java/com/velocitypowered/api/plugin/PluginDescription.java
index b5b925273..5d8af646f 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/PluginDescription.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/PluginDescription.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin;
 
 import com.google.common.collect.ImmutableList;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/PluginManager.java b/api/src/main/java/com/velocitypowered/api/plugin/PluginManager.java
index 36ac27cfb..7af16566d 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/PluginManager.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/PluginManager.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin;
 
 import java.nio.file.Path;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/annotation/DataDirectory.java b/api/src/main/java/com/velocitypowered/api/plugin/annotation/DataDirectory.java
index c3575cf55..5349204f2 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/annotation/DataDirectory.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/annotation/DataDirectory.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin.annotation;
 
 import com.google.inject.BindingAnnotation;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/annotation/package-info.java b/api/src/main/java/com/velocitypowered/api/plugin/annotation/package-info.java
index 81486dfed..377a036da 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/annotation/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/annotation/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides annotations to handle injecting dependencies for plugins.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/meta/PluginDependency.java b/api/src/main/java/com/velocitypowered/api/plugin/meta/PluginDependency.java
index dc7464a39..9d75eaa46 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/meta/PluginDependency.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/meta/PluginDependency.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.plugin.meta;
 
 import static com.google.common.base.Preconditions.checkArgument;
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/meta/package-info.java b/api/src/main/java/com/velocitypowered/api/plugin/meta/package-info.java
index cde1887ae..66b3be097 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/meta/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/meta/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides metadata for plugins.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/plugin/package-info.java b/api/src/main/java/com/velocitypowered/api/plugin/package-info.java
index 6eea17fd6..ce6018d70 100644
--- a/api/src/main/java/com/velocitypowered/api/plugin/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/plugin/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides the Velocity plugin API.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/ConnectionRequestBuilder.java b/api/src/main/java/com/velocitypowered/api/proxy/ConnectionRequestBuilder.java
index b163b2646..f8fa28b1e 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/ConnectionRequestBuilder.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/ConnectionRequestBuilder.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy;
 
 import com.velocitypowered.api.proxy.server.RegisteredServer;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/ConsoleCommandSource.java b/api/src/main/java/com/velocitypowered/api/proxy/ConsoleCommandSource.java
index b48542cc3..191b56de7 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/ConsoleCommandSource.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/ConsoleCommandSource.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy;
 
 import com.velocitypowered.api.command.CommandSource;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/InboundConnection.java b/api/src/main/java/com/velocitypowered/api/proxy/InboundConnection.java
index 74e840310..b1c47a0f3 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/InboundConnection.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/InboundConnection.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/Player.java b/api/src/main/java/com/velocitypowered/api/proxy/Player.java
index e5654a67e..d03e532b7 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/Player.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/Player.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy;
 
 import com.velocitypowered.api.command.CommandSource;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/ProxyServer.java b/api/src/main/java/com/velocitypowered/api/proxy/ProxyServer.java
index f0b3876a0..073cd3bb7 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/ProxyServer.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/ProxyServer.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy;
 
 import com.velocitypowered.api.command.CommandManager;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/ServerConnection.java b/api/src/main/java/com/velocitypowered/api/proxy/ServerConnection.java
index 72c93fe5f..e725bdcec 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/ServerConnection.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/ServerConnection.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy;
 
 import com.velocitypowered.api.proxy.messages.ChannelMessageSink;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/config/ProxyConfig.java b/api/src/main/java/com/velocitypowered/api/proxy/config/ProxyConfig.java
index 3efa22c78..0fa124f76 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/config/ProxyConfig.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/config/ProxyConfig.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.config;
 
 import com.velocitypowered.api.proxy.ProxyServer;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelIdentifier.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelIdentifier.java
index fd3101e70..f8d329db7 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelIdentifier.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelIdentifier.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSink.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSink.java
index f61c58963..2f8264220 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSink.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSink.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSource.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSource.java
index 108d082a4..cf96af30b 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSource.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelMessageSource.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelRegistrar.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelRegistrar.java
index e1a232b80..197628a23 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelRegistrar.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/ChannelRegistrar.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/LegacyChannelIdentifier.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/LegacyChannelIdentifier.java
index c9f471035..f57181648 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/LegacyChannelIdentifier.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/LegacyChannelIdentifier.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifier.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifier.java
index 2cb66007a..082075421 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifier.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifier.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/messages/package-info.java b/api/src/main/java/com/velocitypowered/api/proxy/messages/package-info.java
index 753595884..d4323b5cd 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/messages/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/messages/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides an interface to receive, handle, and send plugin messages on the proxy from clients and
  * servers.
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/package-info.java b/api/src/main/java/com/velocitypowered/api/proxy/package-info.java
index 3a22511ab..c817c3b1e 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides an interface to interact with the proxy at a low level.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/player/PlayerSettings.java b/api/src/main/java/com/velocitypowered/api/proxy/player/PlayerSettings.java
index 98d52806f..61faae34b 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/player/PlayerSettings.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/player/PlayerSettings.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.player;
 
 import java.util.Locale;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/player/SkinParts.java b/api/src/main/java/com/velocitypowered/api/proxy/player/SkinParts.java
index 0a5d0833e..e897dd0f2 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/player/SkinParts.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/player/SkinParts.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.player;
 
 public final class SkinParts {
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/player/TabList.java b/api/src/main/java/com/velocitypowered/api/proxy/player/TabList.java
index 59d8930be..5f5121383 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/player/TabList.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/player/TabList.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.player;
 
 import com.velocitypowered.api.proxy.Player;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/player/TabListEntry.java b/api/src/main/java/com/velocitypowered/api/proxy/player/TabListEntry.java
index 0ae4f574f..80b39c46e 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/player/TabListEntry.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/player/TabListEntry.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.player;
 
 import com.velocitypowered.api.util.GameProfile;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/player/package-info.java b/api/src/main/java/com/velocitypowered/api/proxy/player/package-info.java
index aa3f7686b..248872a3d 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/player/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/player/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides an interface to work with players connected to the proxy.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/server/QueryResponse.java b/api/src/main/java/com/velocitypowered/api/proxy/server/QueryResponse.java
index 566dd0659..617356c46 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/server/QueryResponse.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/server/QueryResponse.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.server;
 
 import com.google.common.annotations.VisibleForTesting;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/server/RegisteredServer.java b/api/src/main/java/com/velocitypowered/api/proxy/server/RegisteredServer.java
index 16ac4ac27..06cd06348 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/server/RegisteredServer.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/server/RegisteredServer.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.server;
 
 import com.velocitypowered.api.proxy.Player;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/server/ServerInfo.java b/api/src/main/java/com/velocitypowered/api/proxy/server/ServerInfo.java
index 83e5e33e1..85dc04665 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/server/ServerInfo.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/server/ServerInfo.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.server;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/server/ServerPing.java b/api/src/main/java/com/velocitypowered/api/proxy/server/ServerPing.java
index dc9b7fc40..0fc4fd49a 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/server/ServerPing.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/server/ServerPing.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.server;
 
 import com.google.common.base.MoreObjects;
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/server/package-info.java b/api/src/main/java/com/velocitypowered/api/proxy/server/package-info.java
index 7f902113a..eed29b5e7 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/server/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/server/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides utilities to handle server information.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/scheduler/ScheduledTask.java b/api/src/main/java/com/velocitypowered/api/scheduler/ScheduledTask.java
index 15cdbd149..1d4161294 100644
--- a/api/src/main/java/com/velocitypowered/api/scheduler/ScheduledTask.java
+++ b/api/src/main/java/com/velocitypowered/api/scheduler/ScheduledTask.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.scheduler;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/scheduler/Scheduler.java b/api/src/main/java/com/velocitypowered/api/scheduler/Scheduler.java
index 6f850b98c..1ff2b8afa 100644
--- a/api/src/main/java/com/velocitypowered/api/scheduler/Scheduler.java
+++ b/api/src/main/java/com/velocitypowered/api/scheduler/Scheduler.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.scheduler;
 
 import java.util.concurrent.TimeUnit;
diff --git a/api/src/main/java/com/velocitypowered/api/scheduler/TaskStatus.java b/api/src/main/java/com/velocitypowered/api/scheduler/TaskStatus.java
index 2ec051fec..bd10e9b47 100644
--- a/api/src/main/java/com/velocitypowered/api/scheduler/TaskStatus.java
+++ b/api/src/main/java/com/velocitypowered/api/scheduler/TaskStatus.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.scheduler;
 
 public enum TaskStatus {
diff --git a/api/src/main/java/com/velocitypowered/api/scheduler/package-info.java b/api/src/main/java/com/velocitypowered/api/scheduler/package-info.java
index 155395528..ade4cdddb 100644
--- a/api/src/main/java/com/velocitypowered/api/scheduler/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/scheduler/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides utilities for scheduling tasks with a fluent builder.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/util/FastUuidSansHyphens.java b/api/src/main/java/com/velocitypowered/api/util/FastUuidSansHyphens.java
index 158f7e07b..feba60464 100644
--- a/api/src/main/java/com/velocitypowered/api/util/FastUuidSansHyphens.java
+++ b/api/src/main/java/com/velocitypowered/api/util/FastUuidSansHyphens.java
@@ -1,25 +1,8 @@
 /*
- * The MIT License (MIT)
+ * Copyright (C) 2018 Velocity Contributors
  *
- * Copyright (c) 2018 Jon Chambers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
  */
 
 package com.velocitypowered.api.util;
diff --git a/api/src/main/java/com/velocitypowered/api/util/Favicon.java b/api/src/main/java/com/velocitypowered/api/util/Favicon.java
index a3ce28164..62abc845a 100644
--- a/api/src/main/java/com/velocitypowered/api/util/Favicon.java
+++ b/api/src/main/java/com/velocitypowered/api/util/Favicon.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/util/GameProfile.java b/api/src/main/java/com/velocitypowered/api/util/GameProfile.java
index 809eb7850..0f9f41d19 100644
--- a/api/src/main/java/com/velocitypowered/api/util/GameProfile.java
+++ b/api/src/main/java/com/velocitypowered/api/util/GameProfile.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/util/MessagePosition.java b/api/src/main/java/com/velocitypowered/api/util/MessagePosition.java
index dce7428e0..90fd82ba0 100644
--- a/api/src/main/java/com/velocitypowered/api/util/MessagePosition.java
+++ b/api/src/main/java/com/velocitypowered/api/util/MessagePosition.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/util/ModInfo.java b/api/src/main/java/com/velocitypowered/api/util/ModInfo.java
index ac1bd0080..8a2dea74e 100644
--- a/api/src/main/java/com/velocitypowered/api/util/ModInfo.java
+++ b/api/src/main/java/com/velocitypowered/api/util/ModInfo.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/util/ProxyVersion.java b/api/src/main/java/com/velocitypowered/api/util/ProxyVersion.java
index 59d31a903..22f0e571f 100644
--- a/api/src/main/java/com/velocitypowered/api/util/ProxyVersion.java
+++ b/api/src/main/java/com/velocitypowered/api/util/ProxyVersion.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/util/UuidUtils.java b/api/src/main/java/com/velocitypowered/api/util/UuidUtils.java
index dfe05af1c..ac0de4fa5 100644
--- a/api/src/main/java/com/velocitypowered/api/util/UuidUtils.java
+++ b/api/src/main/java/com/velocitypowered/api/util/UuidUtils.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 import com.google.common.base.Preconditions;
diff --git a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBar.java b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBar.java
index 115652d4d..cfcc78b1a 100644
--- a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBar.java
+++ b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBar.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.bossbar;
 
 import com.velocitypowered.api.proxy.Player;
diff --git a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarColor.java b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarColor.java
index 5cb66dfc2..ce9addd99 100644
--- a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarColor.java
+++ b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarColor.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.bossbar;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarFlag.java b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarFlag.java
index 3a8fde2a3..0e8001752 100644
--- a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarFlag.java
+++ b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarFlag.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.bossbar;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarOverlay.java b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarOverlay.java
index 61d92d9d7..5aea64c16 100644
--- a/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarOverlay.java
+++ b/api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarOverlay.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.bossbar;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/util/package-info.java b/api/src/main/java/com/velocitypowered/api/util/package-info.java
index ef28b6624..c26f70e7f 100644
--- a/api/src/main/java/com/velocitypowered/api/util/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/util/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides a selection of miscellaneous utilities for use by plugins and the proxy.
  */
diff --git a/api/src/main/java/com/velocitypowered/api/util/title/TextTitle.java b/api/src/main/java/com/velocitypowered/api/util/title/TextTitle.java
index 9580e9a84..8fee20cf3 100644
--- a/api/src/main/java/com/velocitypowered/api/util/title/TextTitle.java
+++ b/api/src/main/java/com/velocitypowered/api/util/title/TextTitle.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.title;
 
 import com.google.common.base.MoreObjects;
diff --git a/api/src/main/java/com/velocitypowered/api/util/title/Title.java b/api/src/main/java/com/velocitypowered/api/util/title/Title.java
index e95c6f1a3..3f56dcd2c 100644
--- a/api/src/main/java/com/velocitypowered/api/util/title/Title.java
+++ b/api/src/main/java/com/velocitypowered/api/util/title/Title.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.title;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/util/title/Titles.java b/api/src/main/java/com/velocitypowered/api/util/title/Titles.java
index 444e41018..3f3190eb5 100644
--- a/api/src/main/java/com/velocitypowered/api/util/title/Titles.java
+++ b/api/src/main/java/com/velocitypowered/api/util/title/Titles.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util.title;
 
 /**
diff --git a/api/src/main/java/com/velocitypowered/api/util/title/package-info.java b/api/src/main/java/com/velocitypowered/api/util/title/package-info.java
index e77c9e981..3fefd59c1 100644
--- a/api/src/main/java/com/velocitypowered/api/util/title/package-info.java
+++ b/api/src/main/java/com/velocitypowered/api/util/title/package-info.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 /**
  * Provides data structures for creating and manipulating titles.
  *
diff --git a/api/src/test/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifierTest.java b/api/src/test/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifierTest.java
index e7f02e95a..17e6e499c 100644
--- a/api/src/test/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifierTest.java
+++ b/api/src/test/java/com/velocitypowered/api/proxy/messages/MinecraftChannelIdentifierTest.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.messages;
 
 import static com.velocitypowered.api.proxy.messages.MinecraftChannelIdentifier.create;
diff --git a/api/src/test/java/com/velocitypowered/api/proxy/server/QueryResponseTest.java b/api/src/test/java/com/velocitypowered/api/proxy/server/QueryResponseTest.java
index c7222a06f..b7b912887 100644
--- a/api/src/test/java/com/velocitypowered/api/proxy/server/QueryResponseTest.java
+++ b/api/src/test/java/com/velocitypowered/api/proxy/server/QueryResponseTest.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.server;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/api/src/test/java/com/velocitypowered/api/proxy/server/ServerPingTest.java b/api/src/test/java/com/velocitypowered/api/proxy/server/ServerPingTest.java
index 76caaa3a7..e5ac0db53 100644
--- a/api/src/test/java/com/velocitypowered/api/proxy/server/ServerPingTest.java
+++ b/api/src/test/java/com/velocitypowered/api/proxy/server/ServerPingTest.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.proxy.server;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/api/src/test/java/com/velocitypowered/api/util/UuidUtilsTest.java b/api/src/test/java/com/velocitypowered/api/util/UuidUtilsTest.java
index b6b37620f..6f467e7ca 100644
--- a/api/src/test/java/com/velocitypowered/api/util/UuidUtilsTest.java
+++ b/api/src/test/java/com/velocitypowered/api/util/UuidUtilsTest.java
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * The Velocity API is licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in the api top-level directory.
+ */
+
 package com.velocitypowered.api.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/build.gradle b/build.gradle
index ba3a02acd..a1395e472 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,6 +10,7 @@ buildscript {
 plugins {
     id 'java'
     id "com.github.spotbugs" version "4.2.4" apply false
+    id 'org.cadixdev.licenser' version '0.5.1' apply false
 }
 
 allprojects {
diff --git a/native/build.gradle b/native/build.gradle
index b5b260486..03f7f2423 100644
--- a/native/build.gradle
+++ b/native/build.gradle
@@ -4,6 +4,7 @@ plugins {
     id 'maven-publish'
 }
 
+apply plugin: 'org.cadixdev.licenser'
 apply from: '../gradle/checkstyle.gradle'
 apply from: '../gradle/publish.gradle'
 
@@ -12,6 +13,10 @@ java {
     targetCompatibility = JavaVersion.VERSION_1_8
 }
 
+license {
+    header = project.rootProject.file('HEADER.txt')
+}
+
 dependencies {
     implementation "com.google.guava:guava:${guavaVersion}"
     implementation "io.netty:netty-handler:${nettyVersion}"
diff --git a/native/src/main/java/com/velocitypowered/natives/Disposable.java b/native/src/main/java/com/velocitypowered/natives/Disposable.java
index 16952d915..dc203112d 100644
--- a/native/src/main/java/com/velocitypowered/natives/Disposable.java
+++ b/native/src/main/java/com/velocitypowered/natives/Disposable.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives;
 
 import java.io.Closeable;
diff --git a/native/src/main/java/com/velocitypowered/natives/Native.java b/native/src/main/java/com/velocitypowered/natives/Native.java
index e90ccf80a..f1bf323dd 100644
--- a/native/src/main/java/com/velocitypowered/natives/Native.java
+++ b/native/src/main/java/com/velocitypowered/natives/Native.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives;
 
 import com.velocitypowered.natives.util.BufferPreference;
diff --git a/native/src/main/java/com/velocitypowered/natives/NativeSetupException.java b/native/src/main/java/com/velocitypowered/natives/NativeSetupException.java
index ff6681635..72ce89d02 100644
--- a/native/src/main/java/com/velocitypowered/natives/NativeSetupException.java
+++ b/native/src/main/java/com/velocitypowered/natives/NativeSetupException.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives;
 
 public class NativeSetupException extends RuntimeException {
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/CompressorUtils.java b/native/src/main/java/com/velocitypowered/natives/compression/CompressorUtils.java
index e31c6b5da..fdde8d320 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/CompressorUtils.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/CompressorUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import io.netty.buffer.ByteBuf;
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/Java11VelocityCompressor.java b/native/src/main/java/com/velocitypowered/natives/compression/Java11VelocityCompressor.java
index 49ac1da26..be3ed64e2 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/Java11VelocityCompressor.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/Java11VelocityCompressor.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import static com.google.common.base.Preconditions.checkArgument;
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/JavaVelocityCompressor.java b/native/src/main/java/com/velocitypowered/natives/compression/JavaVelocityCompressor.java
index d5ad754b9..97127d25d 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/JavaVelocityCompressor.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/JavaVelocityCompressor.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import static com.velocitypowered.natives.compression.CompressorUtils.ZLIB_BUFFER_SIZE;
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/LibdeflateVelocityCompressor.java b/native/src/main/java/com/velocitypowered/natives/compression/LibdeflateVelocityCompressor.java
index ac48b357b..aedb221c0 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/LibdeflateVelocityCompressor.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/LibdeflateVelocityCompressor.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import com.google.common.base.Preconditions;
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibDeflate.java b/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibDeflate.java
index 83cdc5cd1..e08922d00 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibDeflate.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibDeflate.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 /**
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibInflate.java b/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibInflate.java
index 1c6c42594..df793bbaf 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibInflate.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/NativeZlibInflate.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import java.util.zip.DataFormatException;
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressor.java b/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressor.java
index 09cad102c..602eb884c 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressor.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressor.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import com.velocitypowered.natives.Disposable;
diff --git a/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressorFactory.java b/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressorFactory.java
index dda60f76c..dac8ed4a4 100644
--- a/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressorFactory.java
+++ b/native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressorFactory.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 public interface VelocityCompressorFactory {
diff --git a/native/src/main/java/com/velocitypowered/natives/encryption/JavaVelocityCipher.java b/native/src/main/java/com/velocitypowered/natives/encryption/JavaVelocityCipher.java
index a1a65954a..220f39d8a 100644
--- a/native/src/main/java/com/velocitypowered/natives/encryption/JavaVelocityCipher.java
+++ b/native/src/main/java/com/velocitypowered/natives/encryption/JavaVelocityCipher.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.encryption;
 
 import com.google.common.base.Preconditions;
diff --git a/native/src/main/java/com/velocitypowered/natives/encryption/NativeVelocityCipher.java b/native/src/main/java/com/velocitypowered/natives/encryption/NativeVelocityCipher.java
index 814971c4e..26319e398 100644
--- a/native/src/main/java/com/velocitypowered/natives/encryption/NativeVelocityCipher.java
+++ b/native/src/main/java/com/velocitypowered/natives/encryption/NativeVelocityCipher.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.encryption;
 
 import com.google.common.base.Preconditions;
diff --git a/native/src/main/java/com/velocitypowered/natives/encryption/OpenSslCipherImpl.java b/native/src/main/java/com/velocitypowered/natives/encryption/OpenSslCipherImpl.java
index f97eef3df..ecca455b0 100644
--- a/native/src/main/java/com/velocitypowered/natives/encryption/OpenSslCipherImpl.java
+++ b/native/src/main/java/com/velocitypowered/natives/encryption/OpenSslCipherImpl.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.encryption;
 
 import java.security.GeneralSecurityException;
diff --git a/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipher.java b/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipher.java
index d5a161a99..c62a70b2b 100644
--- a/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipher.java
+++ b/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipher.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.encryption;
 
 import com.velocitypowered.natives.Disposable;
diff --git a/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipherFactory.java b/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipherFactory.java
index 8ce83a1b1..ec6b830ff 100644
--- a/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipherFactory.java
+++ b/native/src/main/java/com/velocitypowered/natives/encryption/VelocityCipherFactory.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.encryption;
 
 import java.security.GeneralSecurityException;
diff --git a/native/src/main/java/com/velocitypowered/natives/util/BufferPreference.java b/native/src/main/java/com/velocitypowered/natives/util/BufferPreference.java
index 6814b11fd..c728bfb97 100644
--- a/native/src/main/java/com/velocitypowered/natives/util/BufferPreference.java
+++ b/native/src/main/java/com/velocitypowered/natives/util/BufferPreference.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.util;
 
 public enum BufferPreference {
diff --git a/native/src/main/java/com/velocitypowered/natives/util/MoreByteBufUtils.java b/native/src/main/java/com/velocitypowered/natives/util/MoreByteBufUtils.java
index dd41e3fc7..20450221f 100644
--- a/native/src/main/java/com/velocitypowered/natives/util/MoreByteBufUtils.java
+++ b/native/src/main/java/com/velocitypowered/natives/util/MoreByteBufUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.util;
 
 import com.velocitypowered.natives.Native;
diff --git a/native/src/main/java/com/velocitypowered/natives/util/NativeCodeLoader.java b/native/src/main/java/com/velocitypowered/natives/util/NativeCodeLoader.java
index e4da84f73..58175e77f 100644
--- a/native/src/main/java/com/velocitypowered/natives/util/NativeCodeLoader.java
+++ b/native/src/main/java/com/velocitypowered/natives/util/NativeCodeLoader.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.util;
 
 import java.util.List;
diff --git a/native/src/main/java/com/velocitypowered/natives/util/NativeConstraints.java b/native/src/main/java/com/velocitypowered/natives/util/NativeConstraints.java
index 4bc6d6715..e42bcfb91 100644
--- a/native/src/main/java/com/velocitypowered/natives/util/NativeConstraints.java
+++ b/native/src/main/java/com/velocitypowered/natives/util/NativeConstraints.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.util;
 
 import io.netty.buffer.ByteBuf;
diff --git a/native/src/main/java/com/velocitypowered/natives/util/Natives.java b/native/src/main/java/com/velocitypowered/natives/util/Natives.java
index 24ff34472..b99e24b47 100644
--- a/native/src/main/java/com/velocitypowered/natives/util/Natives.java
+++ b/native/src/main/java/com/velocitypowered/natives/util/Natives.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.util;
 
 import com.google.common.collect.ImmutableList;
diff --git a/native/src/test/java/com/velocitypowered/natives/compression/VelocityCompressorTest.java b/native/src/test/java/com/velocitypowered/natives/compression/VelocityCompressorTest.java
index e8ff18f8a..af4d5abbc 100644
--- a/native/src/test/java/com/velocitypowered/natives/compression/VelocityCompressorTest.java
+++ b/native/src/test/java/com/velocitypowered/natives/compression/VelocityCompressorTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.compression;
 
 import static org.junit.jupiter.api.Assertions.assertThrows;
diff --git a/native/src/test/java/com/velocitypowered/natives/encryption/VelocityCipherTest.java b/native/src/test/java/com/velocitypowered/natives/encryption/VelocityCipherTest.java
index 7fe7e777b..6143d8d10 100644
--- a/native/src/test/java/com/velocitypowered/natives/encryption/VelocityCipherTest.java
+++ b/native/src/test/java/com/velocitypowered/natives/encryption/VelocityCipherTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.natives.encryption;
 
 import static org.junit.jupiter.api.Assertions.assertTrue;
diff --git a/proxy/build.gradle b/proxy/build.gradle
index 8773a085f..33fa5bb41 100644
--- a/proxy/build.gradle
+++ b/proxy/build.gradle
@@ -5,9 +5,14 @@ plugins {
     id 'checkstyle'
 }
 
+apply plugin: 'org.cadixdev.licenser'
 apply from: '../gradle/checkstyle.gradle'
 apply plugin: 'com.github.johnrengelman.shadow'
 
+license {
+    header = project.rootProject.file('HEADER.txt')
+}
+
 java {
     sourceCompatibility = JavaVersion.VERSION_1_8
     targetCompatibility = JavaVersion.VERSION_1_8
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/Metrics.java b/proxy/src/main/java/com/velocitypowered/proxy/Metrics.java
index 5728ca673..64addd7a0 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/Metrics.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/Metrics.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy;
 
 import com.velocitypowered.proxy.config.VelocityConfiguration;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/ProxyOptions.java b/proxy/src/main/java/com/velocitypowered/proxy/ProxyOptions.java
index 30a617b9f..c80b471a5 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/ProxyOptions.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/ProxyOptions.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy;
 
 import java.io.IOException;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/Velocity.java b/proxy/src/main/java/com/velocitypowered/proxy/Velocity.java
index 619cb4a01..2362a4df7 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/Velocity.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/Velocity.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy;
 
 import io.netty.util.ResourceLeakDetector;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/VelocityServer.java b/proxy/src/main/java/com/velocitypowered/proxy/VelocityServer.java
index 12564cd9f..63b3b7550 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/VelocityServer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/VelocityServer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy;
 
 import com.google.common.base.MoreObjects;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/AbstractCommandInvocation.java b/proxy/src/main/java/com/velocitypowered/proxy/command/AbstractCommandInvocation.java
index 1a1d30008..87bd8e496 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/AbstractCommandInvocation.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/AbstractCommandInvocation.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/CommandInvocationFactory.java b/proxy/src/main/java/com/velocitypowered/proxy/command/CommandInvocationFactory.java
index febfce29b..05a4d3b90 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/CommandInvocationFactory.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/CommandInvocationFactory.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.mojang.brigadier.context.CommandContext;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/CommandNodeFactory.java b/proxy/src/main/java/com/velocitypowered/proxy/command/CommandNodeFactory.java
index 0229a43e6..8146ff9df 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/CommandNodeFactory.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/CommandNodeFactory.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.mojang.brigadier.context.CommandContext;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandManager.java b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandManager.java
index f8adfc2e9..349bf2ed2 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandManager.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandMeta.java b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandMeta.java
index b7a9715c4..c45b51080 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandMeta.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityCommandMeta.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityRawCommandInvocation.java b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityRawCommandInvocation.java
index 652e71c99..3e41c4436 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityRawCommandInvocation.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocityRawCommandInvocation.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocitySimpleCommandInvocation.java b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocitySimpleCommandInvocation.java
index 55b16c5a9..74d851c88 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/VelocitySimpleCommandInvocation.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/VelocitySimpleCommandInvocation.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.mojang.brigadier.context.CommandContext;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/BuiltinCommandUtil.java b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/BuiltinCommandUtil.java
index 14868b84d..60edb8806 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/BuiltinCommandUtil.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/BuiltinCommandUtil.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command.builtin;
 
 import com.velocitypowered.api.proxy.ProxyServer;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/GlistCommand.java b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/GlistCommand.java
index ca1677a90..7ae7d481f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/GlistCommand.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/GlistCommand.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command.builtin;
 
 import static com.mojang.brigadier.arguments.StringArgumentType.getString;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ServerCommand.java b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ServerCommand.java
index 145f914b4..3f3cd23dc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ServerCommand.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ServerCommand.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command.builtin;
 
 import static net.kyori.adventure.text.event.HoverEvent.showText;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ShutdownCommand.java b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ShutdownCommand.java
index 4440161fe..47394384a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ShutdownCommand.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ShutdownCommand.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command.builtin;
 
 import com.velocitypowered.api.command.RawCommand;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/VelocityCommand.java b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/VelocityCommand.java
index 3297f457b..f4b98881b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/VelocityCommand.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/command/builtin/VelocityCommand.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command.builtin;
 
 import com.google.common.base.Joiner;
@@ -211,8 +228,8 @@ public class VelocityCommand implements SimpleCommand {
           .append(Component.text(version.getVersion()).decoration(TextDecoration.BOLD, false))
           .build();
       TextComponent copyright = Component
-          .text("Copyright 2018-2021 " + version.getVendor() + ". " + version.getName()
-              + " is freely licensed under the terms of the MIT License.");
+          .text("Copyright 2018-2020 " + version.getVendor() + ". " + version.getName()
+              + " is licensed under the terms of the GNU General Public License v3.");
       source.sendMessage(Identity.nil(), velocity);
       source.sendMessage(Identity.nil(), copyright);
 
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/config/PingPassthroughMode.java b/proxy/src/main/java/com/velocitypowered/proxy/config/PingPassthroughMode.java
index 1ef700f57..1c28a4c27 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/config/PingPassthroughMode.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/config/PingPassthroughMode.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.config;
 
 public enum PingPassthroughMode {
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/config/PlayerInfoForwarding.java b/proxy/src/main/java/com/velocitypowered/proxy/config/PlayerInfoForwarding.java
index 908a26a31..6adb06552 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/config/PlayerInfoForwarding.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/config/PlayerInfoForwarding.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.config;
 
 public enum PlayerInfoForwarding {
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java b/proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java
index fa455e886..95792ded4 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.config;
 
 import com.electronwill.nightconfig.core.CommentedConfig;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionType.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionType.java
index b6d5fc75a..4820ce688 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionType.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionType.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection;
 
 import com.velocitypowered.api.util.GameProfile;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionTypes.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionTypes.java
index 150ab816e..6f5ece082 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionTypes.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/ConnectionTypes.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection;
 
 import com.velocitypowered.proxy.connection.backend.BackendConnectionPhases;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java
index 42b3a766f..4d6318968 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection;
 
 import static com.velocitypowered.proxy.network.Connections.CIPHER_DECODER;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnectionAssociation.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnectionAssociation.java
index d28e3be4e..0bee34efc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnectionAssociation.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnectionAssociation.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection;
 
 public interface MinecraftConnectionAssociation {
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftSessionHandler.java
index 297e5f884..3dcb3807a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection;
 
 import com.velocitypowered.proxy.protocol.MinecraftPacket;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/VelocityConstants.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/VelocityConstants.java
index 665cd5c60..79839e89a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/VelocityConstants.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/VelocityConstants.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection;
 
 public class VelocityConstants {
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhase.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhase.java
index f7fe7aca7..24a808b0f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhase.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhase.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import com.velocitypowered.proxy.connection.client.ConnectedPlayer;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhases.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhases.java
index 09d17053d..3fb42348b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhases.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendConnectionPhases.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import com.velocitypowered.proxy.connection.client.ConnectedPlayer;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendPlaySessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendPlaySessionHandler.java
index b396799dc..d649b4c07 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendPlaySessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendPlaySessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import static com.velocitypowered.proxy.connection.backend.BungeeCordMessageResponder.getBungeeCordChannel;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BungeeCordMessageResponder.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BungeeCordMessageResponder.java
index 1a0289051..c55cb6cf7 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BungeeCordMessageResponder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BungeeCordMessageResponder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java
index 80e6bd7ce..196430311 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import com.velocitypowered.api.util.GameProfile;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/TransitionSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/TransitionSessionHandler.java
index f127abe25..3ba2fd217 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/TransitionSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/TransitionSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import static com.velocitypowered.proxy.connection.backend.BackendConnectionPhases.IN_TRANSITION;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/VelocityServerConnection.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/VelocityServerConnection.java
index cf70bf5ad..62be4a348 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/VelocityServerConnection.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/VelocityServerConnection.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.backend;
 
 import static com.velocitypowered.proxy.VelocityServer.GENERAL_GSON;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhase.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhase.java
index ba45251a7..b0ee83b34 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhase.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhase.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import com.velocitypowered.proxy.connection.backend.VelocityServerConnection;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhases.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhases.java
index 874e0f4b5..934dae0ad 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhases.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientConnectionPhases.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 /**
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java
index 2f0375575..8ac397500 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientSettingsWrapper.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientSettingsWrapper.java
index a0d349db8..b268ee19c 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientSettingsWrapper.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientSettingsWrapper.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import com.velocitypowered.api.proxy.player.PlayerSettings;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java
index 3cc40dfcb..2c7aa7e86 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import static com.velocitypowered.api.proxy.ConnectionRequestBuilder.Status.ALREADY_CONNECTED;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandler.java
index 632181582..2ce8f8db1 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import com.google.common.annotations.VisibleForTesting;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialConnectSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialConnectSessionHandler.java
index 188ae3537..8dcc5c041 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialConnectSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialConnectSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialInboundConnection.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialInboundConnection.java
index 7b5295693..8f5e9da6c 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialInboundConnection.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialInboundConnection.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/LoginSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/LoginSessionHandler.java
index a21f98d06..230d50d56 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/LoginSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/LoginSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import static com.google.common.net.UrlEscapers.urlFormParameterEscaper;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/StatusSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/StatusSessionHandler.java
index 70b54f7b5..d17a419dc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/StatusSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/StatusSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConnectionType.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConnectionType.java
index 544680bc4..5e063b285 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConnectionType.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConnectionType.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.forge.legacy;
 
 import com.velocitypowered.api.util.GameProfile;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConstants.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConstants.java
index 1a932c4f0..7dff8855a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConstants.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeConstants.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.forge.legacy;
 
 /**
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeBackendPhase.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeBackendPhase.java
index 5dc381f2f..ed4350111 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeBackendPhase.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeBackendPhase.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.forge.legacy;
 
 import com.velocitypowered.proxy.connection.ConnectionTypes;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeClientPhase.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeClientPhase.java
index da4096cad..3bb1510fe 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeClientPhase.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeHandshakeClientPhase.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.forge.legacy;
 
 import com.velocitypowered.api.util.ModInfo;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeUtil.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeUtil.java
index e43847ebc..f541c789e 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeUtil.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/forge/legacy/LegacyForgeUtil.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.forge.legacy;
 
 import static com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeConstants.FORGE_LEGACY_HANDSHAKE_CHANNEL;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java
index 234bb28e9..406bce93a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.registry;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionInfo.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionInfo.java
index 54c833d12..8c7abd8cf 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionInfo.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionInfo.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.registry;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionRegistry.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionRegistry.java
index 36a902b63..4e7fb52a9 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionRegistry.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionRegistry.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.registry;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionMessages.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionMessages.java
index 50c9f3e88..bbb6c2daf 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionMessages.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionMessages.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.util;
 
 import net.kyori.adventure.text.Component;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionRequestResults.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionRequestResults.java
index ce97458db..2853aead6 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionRequestResults.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionRequestResults.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.util;
 
 import com.velocitypowered.api.proxy.ConnectionRequestBuilder;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionTypeImpl.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionTypeImpl.java
index 123f1c640..38735283b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionTypeImpl.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/util/ConnectionTypeImpl.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.util;
 
 import com.velocitypowered.api.util.GameProfile;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/console/VelocityConsole.java b/proxy/src/main/java/com/velocitypowered/proxy/console/VelocityConsole.java
index f17b1025a..6b465193f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/console/VelocityConsole.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/console/VelocityConsole.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.console;
 
 import static com.velocitypowered.api.permission.PermissionFunction.ALWAYS_TRUE;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializer.java b/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializer.java
index b6cff8606..a862ddf74 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 import static com.velocitypowered.proxy.network.Connections.FLOW_HANDLER;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializerHolder.java b/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializerHolder.java
index 7da1ab32d..8d667ffaa 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializerHolder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/BackendChannelInitializerHolder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 import io.netty.channel.Channel;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java b/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
index c5408fc60..9a402162a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 import static org.asynchttpclient.Dsl.asyncHttpClient;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/Connections.java b/proxy/src/main/java/com/velocitypowered/proxy/network/Connections.java
index 33112a089..1e0fae2db 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/Connections.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/Connections.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 public class Connections {
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializer.java b/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializer.java
index 64d2ec835..2c27b3fb1 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 import static com.velocitypowered.proxy.network.Connections.FRAME_DECODER;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializerHolder.java b/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializerHolder.java
index c9b2a772e..ab125cc8b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializerHolder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/ServerChannelInitializerHolder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 import io.netty.channel.Channel;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/TransportType.java b/proxy/src/main/java/com/velocitypowered/proxy/network/TransportType.java
index d241267b9..1082d1e97 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/TransportType.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/TransportType.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network;
 
 import com.velocitypowered.proxy.util.concurrent.VelocityNettyThreadFactory;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/netty/SeparatePoolInetNameResolver.java b/proxy/src/main/java/com/velocitypowered/proxy/network/netty/SeparatePoolInetNameResolver.java
index 75e03d5f6..a92fa3184 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/netty/SeparatePoolInetNameResolver.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/netty/SeparatePoolInetNameResolver.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.network.netty;
 
 import com.google.common.cache.Cache;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/PluginClassLoader.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/PluginClassLoader.java
index 85908ecbf..bf590338d 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/PluginClassLoader.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/PluginClassLoader.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin;
 
 import java.io.IOException;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityEventManager.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityEventManager.java
index 5d0d58551..70736c307 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityEventManager.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityEventManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityPluginManager.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityPluginManager.java
index bd84db592..682d5bc78 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityPluginManager.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/VelocityPluginManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin;
 
 import static com.google.common.base.Preconditions.checkArgument;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/PluginLoader.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/PluginLoader.java
index 560f177ec..5c1087221 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/PluginLoader.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/PluginLoader.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader;
 
 import com.google.inject.Module;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginContainer.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginContainer.java
index 1a20bddc1..6c07ac3fb 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginContainer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginContainer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader;
 
 import com.velocitypowered.api.plugin.PluginContainer;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginDescription.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginDescription.java
index 41f0d9151..b799dbbf3 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginDescription.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/VelocityPluginDescription.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaPluginLoader.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaPluginLoader.java
index b1ac74d96..a3043a93b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaPluginLoader.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaPluginLoader.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader.java;
 
 import com.google.inject.Guice;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescription.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescription.java
index 3a775991e..0fae80b08 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescription.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescription.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader.java;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescriptionCandidate.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescriptionCandidate.java
index a5d6d0a1a..4e4aa306a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescriptionCandidate.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/JavaVelocityPluginDescriptionCandidate.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader.java;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/VelocityPluginModule.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/VelocityPluginModule.java
index 77e944ac8..2e8bd6ebc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/VelocityPluginModule.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/java/VelocityPluginModule.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.loader.java;
 
 import com.google.inject.Binder;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtils.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtils.java
index e09cc5bec..a4c45b155 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtils.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.util;
 
 import com.google.common.collect.Maps;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/MinecraftPacket.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/MinecraftPacket.java
index e7baaecb1..7115bb8bf 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/MinecraftPacket.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/MinecraftPacket.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/ProtocolUtils.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/ProtocolUtils.java
index ef6eb35ca..50f6c48d0 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/ProtocolUtils.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/ProtocolUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol;
 
 import static com.google.common.base.Preconditions.checkArgument;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java
index ada663f92..87bc5d091 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol;
 
 import static com.google.common.collect.Iterables.getLast;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/AutoReadHolderHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/AutoReadHolderHandler.java
index 037bf47f9..7c457e164 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/AutoReadHolderHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/AutoReadHolderHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import io.netty.channel.ChannelDuplexHandler;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/GS4QueryHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/GS4QueryHandler.java
index 287de50aa..ff4a63b24 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/GS4QueryHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/GS4QueryHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import static com.velocitypowered.api.event.query.ProxyQueryEvent.QueryType.BASIC;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingDecoder.java
index 875bc3c78..be716ec29 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingDecoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import static com.velocitypowered.proxy.protocol.util.NettyPreconditions.checkFrame;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingEncoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingEncoder.java
index f45981a78..1383493b9 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingEncoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/LegacyPingEncoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.velocitypowered.proxy.protocol.packet.LegacyDisconnect;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherDecoder.java
index 6a8e5158d..1f662fd57 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherDecoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherEncoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherEncoder.java
index 8a5983b22..b4fd027ec 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherEncoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherEncoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressDecoder.java
index 21b958b05..b03451feb 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressDecoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import static com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressEncoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressEncoder.java
index aad607602..f6cb495ca 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressEncoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressEncoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.velocitypowered.natives.compression.VelocityCompressor;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java
index aaf1a58e3..c648d3e16 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftEncoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftEncoder.java
index 889232de5..7ed59202b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftEncoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftEncoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintFrameDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintFrameDecoder.java
index f125faae6..d81f53f5b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintFrameDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintFrameDecoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.velocitypowered.proxy.protocol.netty.VarintByteDecoder.DecodeResult;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintLengthEncoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintLengthEncoder.java
index 667ab6303..867ea9b7f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintLengthEncoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintLengthEncoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import com.velocitypowered.natives.encryption.JavaVelocityCipher;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/VarintByteDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/VarintByteDecoder.java
index 1c01f1244..c50672f18 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/VarintByteDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/VarintByteDecoder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.netty;
 
 import io.netty.util.ByteProcessor;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/AvailableCommands.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/AvailableCommands.java
index 90a9d3bc2..b40d13f00 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/AvailableCommands.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/AvailableCommands.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.base.MoreObjects;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/BossBar.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/BossBar.java
index 63ef23ed8..4ba18272f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/BossBar.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/BossBar.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Chat.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Chat.java
index fd64ea600..915305a71 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Chat.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Chat.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ClientSettings.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ClientSettings.java
index 361b1178e..a2d7e32bc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ClientSettings.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ClientSettings.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Disconnect.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Disconnect.java
index 52d63cf5d..3987311e3 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Disconnect.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Disconnect.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionRequest.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionRequest.java
index 6575ac73f..ff0cc5943 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionRequest.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionRequest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.proxy.connection.VelocityConstants.EMPTY_BYTE_ARRAY;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionResponse.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionResponse.java
index b59b46c61..905ea05ae 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionResponse.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/EncryptionResponse.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.proxy.connection.VelocityConstants.EMPTY_BYTE_ARRAY;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Handshake.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Handshake.java
index 4ac520ea5..d2b425a72 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Handshake.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Handshake.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.proxy.connection.forge.legacy.LegacyForgeConstants.HANDSHAKE_HOSTNAME_TOKEN;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/HeaderAndFooter.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/HeaderAndFooter.java
index 34f8d6098..8001012a4 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/HeaderAndFooter.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/HeaderAndFooter.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.proxy.protocol.ProtocolUtils.writeString;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java
index 84b4fd3ec..9899ef0cb 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.collect.ImmutableSet;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/KeepAlive.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/KeepAlive.java
index 32febe2b6..c2db00b92 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/KeepAlive.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/KeepAlive.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyDisconnect.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyDisconnect.java
index 0a8d7bba5..caf6150e6 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyDisconnect.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyDisconnect.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyHandshake.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyHandshake.java
index a7141b9e4..00f37b2ec 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyHandshake.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyHandshake.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyPing.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyPing.java
index eb8e754c6..e404ed55a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyPing.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LegacyPing.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginMessage.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginMessage.java
index c1eb6b95b..0b57ca72e 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginMessage.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginMessage.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginResponse.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginResponse.java
index 5321c0eea..bc66fadfc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginResponse.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/LoginPluginResponse.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PlayerListItem.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PlayerListItem.java
index 056de8b4b..5aa667065 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PlayerListItem.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PlayerListItem.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PluginMessage.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PluginMessage.java
index ecd610629..9faaae04c 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PluginMessage.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/PluginMessage.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.proxy.protocol.util.PluginMessageUtil.transformLegacyToModernChannel;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackRequest.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackRequest.java
index 435b5fb53..522ddc2c7 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackRequest.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackRequest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackResponse.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackResponse.java
index 16f47ac3c..245e2f501 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackResponse.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ResourcePackResponse.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.event.player.PlayerResourcePackStatusEvent.Status;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java
index d8b0a674a..5b94a1df2 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLogin.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLogin.java
index cef02eb0c..57959c370 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLogin.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLogin.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLoginSuccess.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLoginSuccess.java
index b7a3e54de..d0f415694 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLoginSuccess.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/ServerLoginSuccess.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/SetCompression.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/SetCompression.java
index 50996cc1c..8a225de99 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/SetCompression.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/SetCompression.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusPing.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusPing.java
index 16a6fcd73..94eb593fc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusPing.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusPing.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusRequest.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusRequest.java
index e0aaef5e2..d9fc74ec3 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusRequest.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusRequest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusResponse.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusResponse.java
index df0d856cc..303ec6fa9 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusResponse.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/StatusResponse.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteRequest.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteRequest.java
index 30bf616a0..90e415cb3 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteRequest.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteRequest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteResponse.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteResponse.java
index d63ac9279..c983fed84 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteResponse.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TabCompleteResponse.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import static com.velocitypowered.api.network.ProtocolVersion.MINECRAFT_1_13;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TitlePacket.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TitlePacket.java
index 085936ae8..49fe876df 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TitlePacket.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/TitlePacket.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertyRegistry.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertyRegistry.java
index b98365d3a..96a25f9a4 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertyRegistry.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertyRegistry.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import static com.velocitypowered.proxy.protocol.packet.brigadier.DoubleArgumentPropertySerializer.DOUBLE;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertySerializer.java
index 077474a63..0dbc66dce 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import io.netty.buffer.ByteBuf;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ByteArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ByteArgumentPropertySerializer.java
index 742084a0e..a6d24c645 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ByteArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ByteArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import io.netty.buffer.ByteBuf;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/DoubleArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/DoubleArgumentPropertySerializer.java
index 269d686d0..2162a980e 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/DoubleArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/DoubleArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import static com.velocitypowered.proxy.protocol.packet.brigadier.IntegerArgumentPropertySerializer.HAS_MAXIMUM;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/EmptyArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/EmptyArgumentPropertySerializer.java
index f101484a7..4338381da 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/EmptyArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/EmptyArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import io.netty.buffer.ByteBuf;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/FloatArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/FloatArgumentPropertySerializer.java
index 1ccd7af23..2f5b9bc98 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/FloatArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/FloatArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import static com.velocitypowered.proxy.protocol.packet.brigadier.IntegerArgumentPropertySerializer.HAS_MAXIMUM;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/GenericArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/GenericArgumentPropertySerializer.java
index f4e27dbf6..bc8202f28 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/GenericArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/GenericArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import com.mojang.brigadier.arguments.ArgumentType;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/IntegerArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/IntegerArgumentPropertySerializer.java
index 29a112a68..333d653f8 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/IntegerArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/IntegerArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import com.mojang.brigadier.arguments.IntegerArgumentType;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/LongArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/LongArgumentPropertySerializer.java
index 9d3b40b6d..f2b37ac34 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/LongArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/LongArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import static com.velocitypowered.proxy.protocol.packet.brigadier.IntegerArgumentPropertySerializer.HAS_MAXIMUM;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentProperty.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentProperty.java
index f82133260..cf6283b26 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentProperty.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentProperty.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import com.mojang.brigadier.StringReader;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentPropertySerializer.java
index 6c6eebbd0..58b65b98d 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/ModArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import com.velocitypowered.proxy.protocol.ProtocolUtils;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/PassthroughProperty.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/PassthroughProperty.java
index deb5bdda3..71b91d45f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/PassthroughProperty.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/PassthroughProperty.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import com.mojang.brigadier.StringReader;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/StringArgumentPropertySerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/StringArgumentPropertySerializer.java
index 3c6f03a1e..790eee12d 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/StringArgumentPropertySerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/brigadier/StringArgumentPropertySerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.brigadier;
 
 import com.mojang.brigadier.arguments.StringArgumentType;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/legacyping/LegacyMinecraftPingVersion.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/legacyping/LegacyMinecraftPingVersion.java
index 5c0864f7d..40ce92df5 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/legacyping/LegacyMinecraftPingVersion.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/legacyping/LegacyMinecraftPingVersion.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.packet.legacyping;
 
 public enum LegacyMinecraftPingVersion {
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataInput.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataInput.java
index 587366adf..667d1a0c5 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataInput.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataInput.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import com.google.common.io.ByteArrayDataInput;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataOutput.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataOutput.java
index 644c1e3c6..e7ff5d621 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataOutput.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/ByteBufDataOutput.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import com.google.common.io.ByteArrayDataOutput;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/DeferredByteBufHolder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/DeferredByteBufHolder.java
index 6a35a4e5e..b6655bc23 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/DeferredByteBufHolder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/DeferredByteBufHolder.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import io.netty.buffer.ByteBuf;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/FaviconSerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/FaviconSerializer.java
index a67862323..b1447c87c 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/FaviconSerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/FaviconSerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import com.google.gson.JsonDeserializationContext;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/GameProfileSerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/GameProfileSerializer.java
index c93b9a3cc..96de26103 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/GameProfileSerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/GameProfileSerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import com.google.gson.JsonDeserializationContext;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/NettyPreconditions.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/NettyPreconditions.java
index cd59316e4..52bdb75dc 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/NettyPreconditions.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/NettyPreconditions.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import com.google.common.base.Strings;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtil.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtil.java
index c91a1967b..5e30c1352 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtil.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtil.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import static com.google.common.base.Preconditions.checkArgument;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/VelocityLegacyHoverEventSerializer.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/VelocityLegacyHoverEventSerializer.java
index dbf27b039..9d706d3d7 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/VelocityLegacyHoverEventSerializer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/util/VelocityLegacyHoverEventSerializer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import java.io.IOException;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/scheduler/VelocityScheduler.java b/proxy/src/main/java/com/velocitypowered/proxy/scheduler/VelocityScheduler.java
index 4049be785..8f33b355f 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/scheduler/VelocityScheduler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/scheduler/VelocityScheduler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.scheduler;
 
 import static com.google.common.base.Preconditions.checkArgument;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/server/PingSessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/server/PingSessionHandler.java
index fb4110423..0e2c5a57a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/server/PingSessionHandler.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/server/PingSessionHandler.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.server;
 
 import com.velocitypowered.api.network.ProtocolVersion;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/server/ServerMap.java b/proxy/src/main/java/com/velocitypowered/proxy/server/ServerMap.java
index 7184c6df3..41d337be0 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/server/ServerMap.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/server/ServerMap.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.server;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/server/VelocityRegisteredServer.java b/proxy/src/main/java/com/velocitypowered/proxy/server/VelocityRegisteredServer.java
index 3cf0313d9..fd1c6176a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/server/VelocityRegisteredServer.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/server/VelocityRegisteredServer.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.server;
 
 import static com.velocitypowered.proxy.network.Connections.FRAME_DECODER;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabList.java b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabList.java
index 1cae947fa..bfb8d358a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabList.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabList.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.tablist;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntry.java b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntry.java
index c9208284f..579945d9a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntry.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntry.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.tablist;
 
 import com.velocitypowered.api.proxy.player.TabList;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntryLegacy.java b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntryLegacy.java
index 7bb7c0c2e..ab0892e91 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntryLegacy.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListEntryLegacy.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.tablist;
 
 import com.velocitypowered.api.proxy.player.TabListEntry;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListLegacy.java b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListLegacy.java
index 95966c6b4..bb5401c2b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListLegacy.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabListLegacy.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.tablist;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/AddressUtil.java b/proxy/src/main/java/com/velocitypowered/proxy/util/AddressUtil.java
index 706e80357..600aee59a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/AddressUtil.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/AddressUtil.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/BrigadierUtils.java b/proxy/src/main/java/com/velocitypowered/proxy/util/BrigadierUtils.java
index 73bf67f84..db6a5919d 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/BrigadierUtils.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/BrigadierUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/DurationUtils.java b/proxy/src/main/java/com/velocitypowered/proxy/util/DurationUtils.java
index a588ed222..2307d6869 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/DurationUtils.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/DurationUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import java.time.Duration;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/EncryptionUtils.java b/proxy/src/main/java/com/velocitypowered/proxy/util/EncryptionUtils.java
index 82cc2e2a2..3c555889a 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/EncryptionUtils.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/EncryptionUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import java.math.BigInteger;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/InformationUtils.java b/proxy/src/main/java/com/velocitypowered/proxy/util/InformationUtils.java
index 89f24ab9c..f054e0cc2 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/InformationUtils.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/InformationUtils.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/VelocityChannelRegistrar.java b/proxy/src/main/java/com/velocitypowered/proxy/util/VelocityChannelRegistrar.java
index b07e4815f..1ce6e98c5 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/VelocityChannelRegistrar.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/VelocityChannelRegistrar.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/AdventureBossBarManager.java b/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/AdventureBossBarManager.java
index 7552e2202..3ff17998d 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/AdventureBossBarManager.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/AdventureBossBarManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.bossbar;
 
 import com.google.common.collect.MapMaker;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/VelocityBossBar.java b/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/VelocityBossBar.java
index 6b4d9b01a..be060c15b 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/VelocityBossBar.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/VelocityBossBar.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.bossbar;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/collect/CappedSet.java b/proxy/src/main/java/com/velocitypowered/proxy/util/collect/CappedSet.java
index 492a34540..8e54d7754 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/collect/CappedSet.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/collect/CappedSet.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.collect;
 
 import com.google.common.base.Preconditions;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/collect/Enum2IntMap.java b/proxy/src/main/java/com/velocitypowered/proxy/util/collect/Enum2IntMap.java
index 99621a352..27db57407 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/collect/Enum2IntMap.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/collect/Enum2IntMap.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.collect;
 
 import java.util.EnumSet;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/collect/IdentityHashStrategy.java b/proxy/src/main/java/com/velocitypowered/proxy/util/collect/IdentityHashStrategy.java
index b741d3ac5..516c7cc74 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/collect/IdentityHashStrategy.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/collect/IdentityHashStrategy.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.collect;
 
 import it.unimi.dsi.fastutil.Hash.Strategy;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/Once.java b/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/Once.java
index f921d26dc..20397f292 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/Once.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/Once.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.concurrent;
 
 /**
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/VelocityNettyThreadFactory.java b/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/VelocityNettyThreadFactory.java
index aaa0a8643..4ac6a48c3 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/VelocityNettyThreadFactory.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/concurrent/VelocityNettyThreadFactory.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.concurrent;
 
 import static com.google.common.base.Preconditions.checkNotNull;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietDecoderException.java b/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietDecoderException.java
index 7f86220f6..441e1f3de 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietDecoderException.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietDecoderException.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.except;
 
 import io.netty.handler.codec.DecoderException;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietRuntimeException.java b/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietRuntimeException.java
index a2d029d23..bb143a614 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietRuntimeException.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/except/QuietRuntimeException.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.except;
 
 /**
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiter.java b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiter.java
index 71c25013d..0c1976be1 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiter.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiter.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.ratelimit;
 
 import com.google.common.annotations.VisibleForTesting;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/NoopCacheRatelimiter.java b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/NoopCacheRatelimiter.java
index b1faa5345..caf602862 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/NoopCacheRatelimiter.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/NoopCacheRatelimiter.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.ratelimit;
 
 import java.net.InetAddress;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiter.java b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiter.java
index c6cfa07d1..088370912 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiter.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiter.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.ratelimit;
 
 import java.net.InetAddress;
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiters.java b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiters.java
index bd15abb07..b9d7a2938 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiters.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/util/ratelimit/Ratelimiters.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.ratelimit;
 
 import java.util.concurrent.TimeUnit;
diff --git a/proxy/src/main/resources/log4j2.component.properties b/proxy/src/main/resources/log4j2.component.properties
index e43f5dacc..16151e324 100644
--- a/proxy/src/main/resources/log4j2.component.properties
+++ b/proxy/src/main/resources/log4j2.component.properties
@@ -1,2 +1,19 @@
+#
+# Copyright (C) 2018 Velocity Contributors
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+
 log4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector
 log4j.skipJansi=true
diff --git a/proxy/src/main/resources/log4j2.xml b/proxy/src/main/resources/log4j2.xml
index 85bf1574b..ddbac0715 100644
--- a/proxy/src/main/resources/log4j2.xml
+++ b/proxy/src/main/resources/log4j2.xml
@@ -1,4 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Copyright (C) 2018 Velocity Contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
 <Configuration status="warn">
   <Appenders>
     <TerminalConsole name="TerminalConsole">
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/command/CommandManagerTests.java b/proxy/src/test/java/com/velocitypowered/proxy/command/CommandManagerTests.java
index ae8fa8343..b9b40cc35 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/command/CommandManagerTests.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/command/CommandManagerTests.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import static org.junit.jupiter.api.Assertions.assertArrayEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/command/MockCommandSource.java b/proxy/src/test/java/com/velocitypowered/proxy/command/MockCommandSource.java
index c6dad95f5..bd2cbd359 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/command/MockCommandSource.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/command/MockCommandSource.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.command;
 
 import com.velocitypowered.api.command.CommandSource;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandlerTest.java b/proxy/src/test/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandlerTest.java
index c89fc9b87..4a8af8228 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandlerTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandlerTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.connection.client;
 
 import static com.velocitypowered.proxy.connection.client.HandshakeSessionHandler.cleanVhost;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockEventManager.java b/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockEventManager.java
index 20be3a079..e882e7d20 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockEventManager.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockEventManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin;
 
 /**
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockPluginManager.java b/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockPluginManager.java
index 170c0cdb6..33864a168 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockPluginManager.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/plugin/MockPluginManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtilsTest.java b/proxy/src/test/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtilsTest.java
index 0a2901360..aff2ae73f 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtilsTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/plugin/util/PluginDependencyUtilsTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.plugin.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/protocol/PacketRegistryTest.java b/proxy/src/test/java/com/velocitypowered/proxy/protocol/PacketRegistryTest.java
index e1c40091a..1780d14ac 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/protocol/PacketRegistryTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/protocol/PacketRegistryTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol;
 
 import static com.google.common.collect.Iterables.getLast;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtilTest.java b/proxy/src/test/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtilTest.java
index 2c4b162d9..ef40511dc 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtilTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtilTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.protocol.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/scheduler/VelocitySchedulerTest.java b/proxy/src/test/java/com/velocitypowered/proxy/scheduler/VelocitySchedulerTest.java
index 2afc90830..a7e565cd8 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/scheduler/VelocitySchedulerTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/scheduler/VelocitySchedulerTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.scheduler;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/testutil/FakePluginManager.java b/proxy/src/test/java/com/velocitypowered/proxy/testutil/FakePluginManager.java
index 1aedeeaab..64a64f4c4 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/testutil/FakePluginManager.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/testutil/FakePluginManager.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.testutil;
 
 import com.google.common.collect.ImmutableList;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/util/EncryptionUtilsTest.java b/proxy/src/test/java/com/velocitypowered/proxy/util/EncryptionUtilsTest.java
index f6229a018..7aa347796 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/util/EncryptionUtilsTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/util/EncryptionUtilsTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/util/ServerMapTest.java b/proxy/src/test/java/com/velocitypowered/proxy/util/ServerMapTest.java
index 7c67b48bf..ad1206702 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/util/ServerMapTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/util/ServerMapTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/util/VelocityChannelRegistrarTest.java b/proxy/src/test/java/com/velocitypowered/proxy/util/VelocityChannelRegistrarTest.java
index 40af50794..2e92217c6 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/util/VelocityChannelRegistrarTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/util/VelocityChannelRegistrarTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/util/collect/CappedSetTest.java b/proxy/src/test/java/com/velocitypowered/proxy/util/collect/CappedSetTest.java
index 11df2237d..73943be90 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/util/collect/CappedSetTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/util/collect/CappedSetTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.collect;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/util/concurrent/OnceTest.java b/proxy/src/test/java/com/velocitypowered/proxy/util/concurrent/OnceTest.java
index f84b81159..aeb7ffb50 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/util/concurrent/OnceTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/util/concurrent/OnceTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.concurrent;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/proxy/src/test/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiterTest.java b/proxy/src/test/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiterTest.java
index 3ebb8db0f..39f50e7f2 100644
--- a/proxy/src/test/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiterTest.java
+++ b/proxy/src/test/java/com/velocitypowered/proxy/util/ratelimit/GuavaCacheRatelimiterTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util.ratelimit;
 
 import static org.junit.jupiter.api.Assertions.assertFalse;