diff --git a/api/src/main/java/com/viaversion/viaversion/api/type/types/ShortByteArrayType.java b/api/src/main/java/com/viaversion/viaversion/api/type/types/ShortByteArrayType.java
index 6edc0e243..4d68026b3 100644
--- a/api/src/main/java/com/viaversion/viaversion/api/type/types/ShortByteArrayType.java
+++ b/api/src/main/java/com/viaversion/viaversion/api/type/types/ShortByteArrayType.java
@@ -1,3 +1,25 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2021 ViaVersion and 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.
+ */
 package com.viaversion.viaversion.api.type.types;
 
 import com.viaversion.viaversion.api.type.Type;
diff --git a/bukkit/src/main/java/com/viaversion/viaversion/bukkit/platform/PaperViaInjector.java b/bukkit/src/main/java/com/viaversion/viaversion/bukkit/platform/PaperViaInjector.java
index bdac563c6..12bc83cd0 100644
--- a/bukkit/src/main/java/com/viaversion/viaversion/bukkit/platform/PaperViaInjector.java
+++ b/bukkit/src/main/java/com/viaversion/viaversion/bukkit/platform/PaperViaInjector.java
@@ -1,3 +1,20 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2021 ViaVersion and 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 <http://www.gnu.org/licenses/>.
+ */
 package com.viaversion.viaversion.bukkit.platform;
 
 import com.viaversion.viaversion.bukkit.handlers.BukkitChannelInitializer;
diff --git a/common/src/main/java/com/viaversion/viaversion/connection/ConnectionManagerImpl.java b/common/src/main/java/com/viaversion/viaversion/connection/ConnectionManagerImpl.java
index c04027cbd..68d7d5a14 100644
--- a/common/src/main/java/com/viaversion/viaversion/connection/ConnectionManagerImpl.java
+++ b/common/src/main/java/com/viaversion/viaversion/connection/ConnectionManagerImpl.java
@@ -2,23 +2,18 @@
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
  * Copyright (C) 2016-2021 ViaVersion and 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:
+ * 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.
  *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
+ * 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.
  *
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 package com.viaversion.viaversion.connection;
 
diff --git a/common/src/main/java/com/viaversion/viaversion/connection/ProtocolInfoImpl.java b/common/src/main/java/com/viaversion/viaversion/connection/ProtocolInfoImpl.java
index a434bcbc7..5b8ba2f42 100644
--- a/common/src/main/java/com/viaversion/viaversion/connection/ProtocolInfoImpl.java
+++ b/common/src/main/java/com/viaversion/viaversion/connection/ProtocolInfoImpl.java
@@ -2,23 +2,18 @@
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
  * Copyright (C) 2016-2021 ViaVersion and 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:
+ * 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.
  *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
+ * 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.
  *
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 package com.viaversion.viaversion.connection;
 
diff --git a/common/src/main/java/com/viaversion/viaversion/connection/UserConnectionImpl.java b/common/src/main/java/com/viaversion/viaversion/connection/UserConnectionImpl.java
index 1fa3092bd..9da325c37 100644
--- a/common/src/main/java/com/viaversion/viaversion/connection/UserConnectionImpl.java
+++ b/common/src/main/java/com/viaversion/viaversion/connection/UserConnectionImpl.java
@@ -2,23 +2,18 @@
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
  * Copyright (C) 2016-2021 ViaVersion and 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:
+ * 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.
  *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
+ * 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.
  *
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 package com.viaversion.viaversion.connection;
 
diff --git a/common/src/main/java/com/viaversion/viaversion/legacy/LegacyAPI.java b/common/src/main/java/com/viaversion/viaversion/legacy/LegacyAPI.java
index 83292deea..cbb7800de 100644
--- a/common/src/main/java/com/viaversion/viaversion/legacy/LegacyAPI.java
+++ b/common/src/main/java/com/viaversion/viaversion/legacy/LegacyAPI.java
@@ -1,3 +1,20 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2021 ViaVersion and 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 <http://www.gnu.org/licenses/>.
+ */
 package com.viaversion.viaversion.legacy;
 
 import com.viaversion.viaversion.api.legacy.LegacyViaAPI;
diff --git a/common/src/main/java/com/viaversion/viaversion/protocol/ProtocolPipelineImpl.java b/common/src/main/java/com/viaversion/viaversion/protocol/ProtocolPipelineImpl.java
index 80a2cabef..559793507 100644
--- a/common/src/main/java/com/viaversion/viaversion/protocol/ProtocolPipelineImpl.java
+++ b/common/src/main/java/com/viaversion/viaversion/protocol/ProtocolPipelineImpl.java
@@ -2,23 +2,18 @@
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
  * Copyright (C) 2016-2021 ViaVersion and 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:
+ * 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.
  *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
+ * 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.
  *
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 package com.viaversion.viaversion.protocol;
 
diff --git a/common/src/main/java/com/viaversion/viaversion/protocol/packet/PacketWrapperImpl.java b/common/src/main/java/com/viaversion/viaversion/protocol/packet/PacketWrapperImpl.java
index 2fa353e68..808bb9296 100644
--- a/common/src/main/java/com/viaversion/viaversion/protocol/packet/PacketWrapperImpl.java
+++ b/common/src/main/java/com/viaversion/viaversion/protocol/packet/PacketWrapperImpl.java
@@ -2,23 +2,18 @@
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
  * Copyright (C) 2016-2021 ViaVersion and 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:
+ * 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.
  *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
+ * 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.
  *
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 package com.viaversion.viaversion.protocol.packet;
 
diff --git a/java-compat/java-compat-common/src/main/java/com/viaversion/viaversion/compatibility/ForcefulFieldModifier.java b/java-compat/java-compat-common/src/main/java/com/viaversion/viaversion/compatibility/ForcefulFieldModifier.java
index f100dca67..eca24a113 100644
--- a/java-compat/java-compat-common/src/main/java/com/viaversion/viaversion/compatibility/ForcefulFieldModifier.java
+++ b/java-compat/java-compat-common/src/main/java/com/viaversion/viaversion/compatibility/ForcefulFieldModifier.java
@@ -1,3 +1,20 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2021 ViaVersion and 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 <http://www.gnu.org/licenses/>.
+ */
 package com.viaversion.viaversion.compatibility;
 
 import java.lang.reflect.Field;
diff --git a/java-compat/java-compat-unsafe/src/main/java/com/viaversion/viaversion/compatibility/unsafe/UnsafeBackedForcefulFieldModifier.java b/java-compat/java-compat-unsafe/src/main/java/com/viaversion/viaversion/compatibility/unsafe/UnsafeBackedForcefulFieldModifier.java
index 1e3ce3baf..db8d21032 100644
--- a/java-compat/java-compat-unsafe/src/main/java/com/viaversion/viaversion/compatibility/unsafe/UnsafeBackedForcefulFieldModifier.java
+++ b/java-compat/java-compat-unsafe/src/main/java/com/viaversion/viaversion/compatibility/unsafe/UnsafeBackedForcefulFieldModifier.java
@@ -1,3 +1,20 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2021 ViaVersion and 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 <http://www.gnu.org/licenses/>.
+ */
 package com.viaversion.viaversion.compatibility.unsafe;
 
 import com.viaversion.viaversion.compatibility.ForcefulFieldModifier;