Paper/patches/api/0166-Fix-Spigot-annotation-mistakes.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 24 Mar 2019 18:39:01 -0400
Subject: [PATCH] Fix Spigot annotation mistakes

while some of these may of been true, they are extreme cases and cause
a ton of noise to plugin developers.

Use ApiStatus.Internal instead of Deprecated for actual internal API
that continues to have use (internally).

These do not help plugin developers if they bring moise noise than value.

diff --git a/src/main/java/org/bukkit/Art.java b/src/main/java/org/bukkit/Art.java
index dadff073abb2dec39111e677ec77ffdb2b7ff9a9..042d1d932a33022e4fc873652f70dc6ed342d46a 100644
--- a/src/main/java/org/bukkit/Art.java
+++ b/src/main/java/org/bukkit/Art.java
@@ -96,9 +96,9 @@ public enum Art implements Keyed {
      * Get the ID of this painting.
      *
      * @return The ID of this painting
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public int getId() {
         return id;
     }
@@ -114,9 +114,9 @@ public enum Art implements Keyed {
      *
      * @param id The ID
      * @return The painting
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static Art getById(int id) {
         return BY_ID.get(id);
diff --git a/src/main/java/org/bukkit/Bukkit.java b/src/main/java/org/bukkit/Bukkit.java
index 577b4b89b50441572f0edd9325047c38e25e782e..949ffc320502e46493183cc3ef621d9c4edbe7d6 100644
--- a/src/main/java/org/bukkit/Bukkit.java
+++ b/src/main/java/org/bukkit/Bukkit.java
@@ -883,9 +883,8 @@ public final class Bukkit {
      *
      * @param id the id of the map to get
      * @return a map view if it exists, or null otherwise
-     * @deprecated Magic value
      */
-    @Deprecated
+    //@Deprecated // Paper - Not a magic value
     @Nullable
     public static MapView getMap(int id) {
         return server.getMap(id);
@@ -964,8 +963,14 @@ public final class Bukkit {
      * Returns the primary logger associated with this server instance.
      *
      * @return Logger associated with this server
+     * @see org.bukkit.plugin.Plugin#getSLF4JLogger()
+     * @apiNote This logger is for the Minecraft server software, not for specific plugins. You should
+     * use a logger for a specific plugin, either via {@link org.bukkit.plugin.Plugin#getSLF4JLogger()}
+     * or {@link org.bukkit.plugin.Plugin#getLogger()} or create a specific logger for a class via slf4j.
+     * That way, log messages contain contextual information about the source of the message.
      */
     @NotNull
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper - internalize Bukkit#getLogger
     public static Logger getLogger() {
         return server.getLogger();
     }
@@ -1362,10 +1367,8 @@ public final class Bukkit {
      * @param name the name the player to retrieve
      * @return an offline player
      * @see #getOfflinePlayer(java.util.UUID)
-     * @deprecated Persistent storage of users should be by UUID as names are no longer
-     *             unique past a single session.
      */
-    @Deprecated
+    // @Deprecated // Paper
     @NotNull
     public static OfflinePlayer getOfflinePlayer(@NotNull String name) {
         return server.getOfflinePlayer(name);
@@ -1978,7 +1981,7 @@ public final class Bukkit {
      *
      * @return the scoreboard manager or null if no worlds are loaded.
      */
-    @Nullable
+    @NotNull // Paper
     public static ScoreboardManager getScoreboardManager() {
         return server.getScoreboardManager();
     }
diff --git a/src/main/java/org/bukkit/CoalType.java b/src/main/java/org/bukkit/CoalType.java
index c07499dbdd49d70717dbd674d97b6dbcfd7e9d5b..039b71c6471d00123226edda0fe839fd946029c4 100644
--- a/src/main/java/org/bukkit/CoalType.java
+++ b/src/main/java/org/bukkit/CoalType.java
@@ -7,6 +7,7 @@ import org.jetbrains.annotations.Nullable;
 /**
  * Represents the two types of coal
  */
+@Deprecated(forRemoval = true, since = "1.13")
 public enum CoalType {
     COAL(0x0),
     CHARCOAL(0x1);
diff --git a/src/main/java/org/bukkit/CropState.java b/src/main/java/org/bukkit/CropState.java
index fb4832fb796a38c0f5f51cf80a67259924f2c607..a4f88f4420b855a08f98b77fa1ff35dcec9da8a9 100644
--- a/src/main/java/org/bukkit/CropState.java
+++ b/src/main/java/org/bukkit/CropState.java
@@ -7,6 +7,7 @@ import org.jetbrains.annotations.Nullable;
 /**
  * Represents the different growth states of crops
  */
+@Deprecated(forRemoval = true, since = "1.13")
 public enum CropState {
 
     /**
diff --git a/src/main/java/org/bukkit/Difficulty.java b/src/main/java/org/bukkit/Difficulty.java
index 3f6cbefc2b1414ba2dad709e79288013b3ef73be..f35801783538d3377b04131b8bf6effd7eb8e1a5 100644
--- a/src/main/java/org/bukkit/Difficulty.java
+++ b/src/main/java/org/bukkit/Difficulty.java
@@ -44,9 +44,9 @@ public enum Difficulty {
      * Gets the difficulty value associated with this Difficulty.
      *
      * @return An integer value of this difficulty
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public int getValue() {
         return value;
     }
@@ -57,9 +57,9 @@ public enum Difficulty {
      * @param value Value to check
      * @return Associative {@link Difficulty} with the given value, or null if
      *     it doesn't exist
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static Difficulty getByValue(final int value) {
         return BY_ID.get(value);
diff --git a/src/main/java/org/bukkit/DyeColor.java b/src/main/java/org/bukkit/DyeColor.java
index bd213cabddd8752e609544f24cfba95405726155..47df858e095c4423c20e49e029d72f0f50d2c924 100644
--- a/src/main/java/org/bukkit/DyeColor.java
+++ b/src/main/java/org/bukkit/DyeColor.java
@@ -96,9 +96,9 @@ public enum DyeColor {
      *
      * @return A byte containing the wool data value of this color
      * @see #getDyeData()
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public byte getWoolData() {
         return woolData;
     }
@@ -142,9 +142,9 @@ public enum DyeColor {
      * @return The {@link DyeColor} representing the given value, or null if
      *     it doesn't exist
      * @see #getByDyeData(byte)
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static DyeColor getByWoolData(final byte data) {
         int i = 0xff & data;
@@ -202,9 +202,9 @@ public enum DyeColor {
      *
      * @param name dye name
      * @return dye color
-     * @deprecated legacy use only
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @NotNull
     public static DyeColor legacyValueOf(@Nullable String name) {
         return "SILVER".equals(name) ? DyeColor.LIGHT_GRAY : DyeColor.valueOf(name);
diff --git a/src/main/java/org/bukkit/Effect.java b/src/main/java/org/bukkit/Effect.java
index 0d0777771485a76d960da2f16e963b19d2cf6c2d..fd9cf25f2fdef5ee3b7143f27e5f43dfe3f21a38 100644
--- a/src/main/java/org/bukkit/Effect.java
+++ b/src/main/java/org/bukkit/Effect.java
@@ -357,9 +357,9 @@ public enum Effect {
      * Gets the ID for this effect.
      *
      * @return ID of this effect
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public int getId() {
         return this.id;
     }
@@ -386,9 +386,9 @@ public enum Effect {
      *
      * @param id ID of the Effect to return
      * @return Effect with the given ID
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static Effect getById(int id) {
         return BY_ID.get(id);
diff --git a/src/main/java/org/bukkit/EntityEffect.java b/src/main/java/org/bukkit/EntityEffect.java
index 9db85b2f6ffd56bbc4db1f75f8769f1c15d5950f..5341957b10cccd7bce5a7595699b1d90412a01d0 100644
--- a/src/main/java/org/bukkit/EntityEffect.java
+++ b/src/main/java/org/bukkit/EntityEffect.java
@@ -345,9 +345,9 @@ public enum EntityEffect {
      * Gets the data value of this EntityEffect, may not be unique.
      *
      * @return The data value
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public byte getData() {
         return data;
     }
diff --git a/src/main/java/org/bukkit/GameMode.java b/src/main/java/org/bukkit/GameMode.java
index 938c3217f92e6d3ef9a637269c469f8359af6347..81e45984a88fc84acd0f76d825abf4ddaed0ac3b 100644
--- a/src/main/java/org/bukkit/GameMode.java
+++ b/src/main/java/org/bukkit/GameMode.java
@@ -44,9 +44,9 @@ public enum GameMode {
      * Gets the mode value associated with this GameMode
      *
      * @return An integer value of this gamemode
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public int getValue() {
         return value;
     }
@@ -57,9 +57,9 @@ public enum GameMode {
      * @param value Value to check
      * @return Associative {@link GameMode} with the given value, or null if
      *     it doesn't exist
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static GameMode getByValue(final int value) {
         return BY_ID.get(value);
diff --git a/src/main/java/org/bukkit/GrassSpecies.java b/src/main/java/org/bukkit/GrassSpecies.java
index f9c9ae463aacd593e3aa9caf037ea1e23d56c780..38ccfd0a1b38e7a87185e668d3c020816c68a66b 100644
--- a/src/main/java/org/bukkit/GrassSpecies.java
+++ b/src/main/java/org/bukkit/GrassSpecies.java
@@ -6,7 +6,9 @@ import org.jetbrains.annotations.Nullable;
 
 /**
  * Represents the different types of grass.
+ * @deprecated use {@link org.bukkit.block.data.BlockData}
  */
+@Deprecated(forRemoval = true, since = "1.13")
 public enum GrassSpecies {
 
     /**
diff --git a/src/main/java/org/bukkit/Location.java b/src/main/java/org/bukkit/Location.java
index b02efba048be00e42502111fcdd2297529926666..fb4b6f0e908ffa50c3b2f8d04d9f3810898b8d5e 100644
--- a/src/main/java/org/bukkit/Location.java
+++ b/src/main/java/org/bukkit/Location.java
@@ -46,7 +46,7 @@ public class Location implements Cloneable, ConfigurationSerializable, io.paperm
      * @param y The y-coordinate of this new location
      * @param z The z-coordinate of this new location
      */
-    public Location(@Nullable final World world, final double x, final double y, final double z) {
+    public Location(@UndefinedNullability final World world, final double x, final double y, final double z) { // Paper
         this(world, x, y, z, 0, 0);
     }
 
@@ -60,7 +60,7 @@ public class Location implements Cloneable, ConfigurationSerializable, io.paperm
      * @param yaw The absolute rotation on the x-plane, in degrees
      * @param pitch The absolute rotation on the y-plane, in degrees
      */
-    public Location(@Nullable final World world, final double x, final double y, final double z, final float yaw, final float pitch) {
+    public Location(@UndefinedNullability final World world, final double x, final double y, final double z, final float yaw, final float pitch) { // Paper
         if (world != null) {
             this.world = new WeakReference<>(world);
         }
@@ -102,7 +102,7 @@ public class Location implements Cloneable, ConfigurationSerializable, io.paperm
      * @throws IllegalArgumentException when world is unloaded
      * @see #isWorldLoaded()
      */
-    @Nullable
+    @UndefinedNullability // Paper
     public World getWorld() {
         if (this.world == null) {
             return null;
diff --git a/src/main/java/org/bukkit/Material.java b/src/main/java/org/bukkit/Material.java
index 6ebf024d5c2d5fc7253319b68ceed212de1cd73d..309a79cbe65498c90d9e135607bc246688ac6274 100644
--- a/src/main/java/org/bukkit/Material.java
+++ b/src/main/java/org/bukkit/Material.java
@@ -4867,20 +4867,20 @@ public enum Material implements Keyed, Translatable {
      * Do not use for any reason.
      *
      * @return ID of this material
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @ApiStatus.Internal // Paper
     public int getId() {
         Preconditions.checkArgument(legacy, "Cannot get ID of Modern Material");
         return id;
     }
 
     /**
-     * Do not use for any reason.
+     * Checks if this constant is a legacy material.
      *
      * @return legacy status
      */
-    @Deprecated
+    // @Deprecated // Paper - this is useful, don't deprecate
     public boolean isLegacy() {
         return legacy;
     }
@@ -4956,8 +4956,10 @@ public enum Material implements Keyed, Translatable {
      * Gets the MaterialData class associated with this Material
      *
      * @return MaterialData associated with this Material
+     * @deprecated use {@link #createBlockData()}
      */
     @NotNull
+    @Deprecated // Paper
     public Class<? extends MaterialData> getData() {
         Preconditions.checkArgument(legacy, "Cannot get data class of Modern Material");
         return ctor.getDeclaringClass();
@@ -5413,7 +5415,11 @@ public enum Material implements Keyed, Translatable {
      * material.
      *
      * @return true if this material can be interacted with.
+     * @deprecated This method is not comprehensive and does not accurately reflect what block types are
+     * interactable. Many "interactions" are defined on the item not block, and many are conditional on some other world state
+     * checks being true.
      */
+    @Deprecated // Paper
     public boolean isInteractable() {
         BlockType type = asBlockType();
         return type != null && type.isInteractable();
diff --git a/src/main/java/org/bukkit/NamespacedKey.java b/src/main/java/org/bukkit/NamespacedKey.java
index 9b61129c3ef83d0bfceba54aba2effa12bc90678..cbdaa121dbc1876d0cd55f4b7b57f283ecaa8f1a 100644
--- a/src/main/java/org/bukkit/NamespacedKey.java
+++ b/src/main/java/org/bukkit/NamespacedKey.java
@@ -74,12 +74,14 @@ public final class NamespacedKey implements net.kyori.adventure.key.Key { // Pap
 
     /**
      * Create a key in a specific namespace.
+     * <p>
+     * For most plugin related code, you should prefer using the
+     * {@link NamespacedKey#NamespacedKey(Plugin, String)} constructor.
      *
      * @param namespace namespace
      * @param key key
-     * @apiNote should never be used by plugins, for internal use only!!
+     * @see #NamespacedKey(Plugin, String)
      */
-    @ApiStatus.Internal
     public NamespacedKey(@NotNull String namespace, @NotNull String key) {
         Preconditions.checkArgument(namespace != null && isValidNamespace(namespace), "Invalid namespace. Must be [a-z0-9._-]: %s", namespace);
         Preconditions.checkArgument(key != null && isValidKey(key), "Invalid key. Must be [a-z0-9/._-]: %s", key);
diff --git a/src/main/java/org/bukkit/NetherWartsState.java b/src/main/java/org/bukkit/NetherWartsState.java
index f43209cf7b752c26718c303ca8c3e1c7d9912ad3..d6c09d88189b3e9ecc629d8cf18a2b81e6801871 100644
--- a/src/main/java/org/bukkit/NetherWartsState.java
+++ b/src/main/java/org/bukkit/NetherWartsState.java
@@ -1,5 +1,11 @@
 package org.bukkit;
 
+// Paper start
+/**
+ * @deprecated use {@link org.bukkit.block.data.BlockData} and {@link org.bukkit.block.data.Ageable}
+ */
+@Deprecated(forRemoval = true, since = "1.13")
+// Paper end
 public enum NetherWartsState {
 
     /**
diff --git a/src/main/java/org/bukkit/Note.java b/src/main/java/org/bukkit/Note.java
index 48aecc9421c500137bbef1dfe3bec8de277c3ff9..aff858346776386f1288b648b221404f7f412399 100644
--- a/src/main/java/org/bukkit/Note.java
+++ b/src/main/java/org/bukkit/Note.java
@@ -39,9 +39,9 @@ public class Note {
          * Returns the not sharped id of this tone.
          *
          * @return the not sharped id of this tone.
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         public byte getId() {
             return getId(false);
         }
@@ -53,9 +53,9 @@ public class Note {
          *
          * @param sharped Set to true to return the sharped id.
          * @return the id of this tone.
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         public byte getId(boolean sharped) {
             byte id = (byte) (sharped && sharpable ? this.id + 1 : this.id);
 
@@ -78,9 +78,9 @@ public class Note {
          * @return if the tone id is the sharped id of the tone.
          * @throws IllegalArgumentException if neither the tone nor the
          *     semitone have the id.
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         public boolean isSharped(byte id) {
             if (id == getId(false)) {
                 return false;
@@ -97,9 +97,9 @@ public class Note {
          *
          * @param id the id of the tone.
          * @return the tone to id.
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         @Nullable
         public static Tone getById(byte id) {
             return BY_DATA.get(id);
@@ -222,9 +222,9 @@ public class Note {
      * Returns the internal id of this note.
      *
      * @return the internal id of this note.
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public byte getId() {
         return note;
     }
diff --git a/src/main/java/org/bukkit/Registry.java b/src/main/java/org/bukkit/Registry.java
index 774f9bd0ef95d385dc3f715753c83e05fcc2bdff..26399345dd02031712994da1553417186b8c7370 100644
--- a/src/main/java/org/bukkit/Registry.java
+++ b/src/main/java/org/bukkit/Registry.java
@@ -248,14 +248,12 @@ public interface Registry<T extends Keyed> extends Iterable<T> {
      *
      * @see TrimMaterial
      */
-    @ApiStatus.Experimental
     Registry<TrimMaterial> TRIM_MATERIAL = Objects.requireNonNull(Bukkit.getRegistry(TrimMaterial.class), "No registry present for TrimMaterial. This is a bug.");
     /**
      * Trim patterns.
      *
      * @see TrimPattern
      */
-    @ApiStatus.Experimental
     Registry<TrimPattern> TRIM_PATTERN = Objects.requireNonNull(Bukkit.getRegistry(TrimPattern.class), "No registry present for TrimPattern. This is a bug.");
     /**
      * Damage types.
@@ -385,8 +383,11 @@ public interface Registry<T extends Keyed> extends Iterable<T> {
      *
      * @param input non-null input
      * @return registered object or null if does not exist
+     * @deprecated this method's behavior is broken and not useful. If you want to get an object
+     * based on its vanilla name, or a key, wrap it in a {@link NamespacedKey} object and use {@link #get(NamespacedKey)}
      */
     @Nullable
+    @Deprecated(forRemoval = true) // Paper
     default T match(@NotNull String input) {
         Preconditions.checkArgument(input != null, "input must not be null");
 
diff --git a/src/main/java/org/bukkit/SandstoneType.java b/src/main/java/org/bukkit/SandstoneType.java
index 6277451c3c6c551078c237cd767b6d70c4f585ea..7d33b3e2f81c14d3aeb800b39e7823831ecc39e4 100644
--- a/src/main/java/org/bukkit/SandstoneType.java
+++ b/src/main/java/org/bukkit/SandstoneType.java
@@ -6,7 +6,9 @@ import org.jetbrains.annotations.Nullable;
 
 /**
  * Represents the three different types of Sandstone
+ * @deprecated use {@link org.bukkit.block.data.BlockData}
  */
+@Deprecated(forRemoval = true, since = "1.13")
 public enum SandstoneType {
     CRACKED(0x0),
     GLYPHED(0x1),
diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
index 08f6f85388e4c3e3aae40f709109f8706a400675..c6ebdefe940e5e3ab04aac0f22924ef5d876d328 100644
--- a/src/main/java/org/bukkit/Server.java
+++ b/src/main/java/org/bukkit/Server.java
@@ -744,9 +744,8 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
      *
      * @param id the id of the map to get
      * @return a map view if it exists, or null otherwise
-     * @deprecated Magic value
      */
-    @Deprecated
+    //@Deprecated // Paper - Not a magic value
     @Nullable
     public MapView getMap(int id);
 
@@ -813,8 +812,14 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
      * Returns the primary logger associated with this server instance.
      *
      * @return Logger associated with this server
+     * @see org.bukkit.plugin.Plugin#getSLF4JLogger()
+     * @apiNote This logger is for the Minecraft server software, not for specific plugins. You should
+     * use a logger for a specific plugin, either via {@link org.bukkit.plugin.Plugin#getSLF4JLogger()}
+     * or {@link org.bukkit.plugin.Plugin#getLogger()} or create a specific logger for a class via slf4j.
+     * That way, log messages contain contextual information about the source of the message.
      */
     @NotNull
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper - internalize Bukkit#getLogger
     public Logger getLogger();
 
     /**
@@ -1151,10 +1156,8 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
      * @param name the name the player to retrieve
      * @return an offline player
      * @see #getOfflinePlayer(java.util.UUID)
-     * @deprecated Persistent storage of users should be by UUID as names are no longer
-     *             unique past a single session.
      */
-    @Deprecated
+    // @Deprecated // Paper
     @NotNull
     public OfflinePlayer getOfflinePlayer(@NotNull String name);
 
@@ -1672,7 +1675,7 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
      *
      * @return the scoreboard manager or null if no worlds are loaded.
      */
-    @Nullable
+    @NotNull // Paper
     ScoreboardManager getScoreboardManager();
 
     /**
diff --git a/src/main/java/org/bukkit/SkullType.java b/src/main/java/org/bukkit/SkullType.java
index 49f2f1128892fa991ed18785cd954b07ddd8e51a..08a946aaf29726d19be970c19d0bbbc59dd21efe 100644
--- a/src/main/java/org/bukkit/SkullType.java
+++ b/src/main/java/org/bukkit/SkullType.java
@@ -4,7 +4,7 @@ package org.bukkit;
  * Represents the different types of skulls.
  * @deprecated check {@link Material} instead
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public enum SkullType {
     SKELETON,
     WITHER,
diff --git a/src/main/java/org/bukkit/TreeSpecies.java b/src/main/java/org/bukkit/TreeSpecies.java
index 01285301621c88c9e383e18c46eabd302341a338..57e010a57f804bd9f2a78710d6f52928ad476197 100644
--- a/src/main/java/org/bukkit/TreeSpecies.java
+++ b/src/main/java/org/bukkit/TreeSpecies.java
@@ -9,7 +9,7 @@ import org.jetbrains.annotations.Nullable;
  *
  * @deprecated Deprecated, see usage methods for replacement(s)
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.19")
 public enum TreeSpecies {
 
     /**
diff --git a/src/main/java/org/bukkit/UndefinedNullability.java b/src/main/java/org/bukkit/UndefinedNullability.java
index 4d4265c237179470e1fd017721a8dd595f114013..3babc9df26276300392d3f92ee6e317c33643b0b 100644
--- a/src/main/java/org/bukkit/UndefinedNullability.java
+++ b/src/main/java/org/bukkit/UndefinedNullability.java
@@ -14,6 +14,7 @@ import org.jetbrains.annotations.ApiStatus;
  * suggests a bad API design.
  */
 @Retention(RetentionPolicy.CLASS)
+@java.lang.annotation.Documented // Paper
 @ApiStatus.Internal
 @Deprecated
 public @interface UndefinedNullability {
diff --git a/src/main/java/org/bukkit/Vibration.java b/src/main/java/org/bukkit/Vibration.java
index e455eb21abf121dc6ff10ff8a13dd06f67096a8f..bbc01e7c192ae6689c301670047ff114306c57cb 100644
--- a/src/main/java/org/bukkit/Vibration.java
+++ b/src/main/java/org/bukkit/Vibration.java
@@ -13,6 +13,14 @@ public class Vibration {
     private final Destination destination;
     private final int arrivalTime;
 
+    // Paper start
+    public Vibration(@NotNull Destination destination, @NotNull int arrivalTime) {
+        this.destination = destination;
+        this.arrivalTime = arrivalTime;
+        this.origin = new Location(null, 0, 0, 0); // Dummy origin because getter expects null
+    }
+
+    @Deprecated(forRemoval = true) // Paper end
     public Vibration(@NotNull Location origin, @NotNull Destination destination, int arrivalTime) {
         this.origin = origin;
         this.destination = destination;
@@ -22,9 +30,11 @@ public class Vibration {
     /**
      * Get the origin of the vibration.
      *
+     * @deprecated unused as of 1.19
      * @return origin
      */
     @NotNull
+    @Deprecated(forRemoval = true) // Paper
     public Location getOrigin() {
         return origin;
     }
diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index 7dbc2e4883feb5b0b1a20cf36cda01ef3795a262..e4471e86e1b0993425087d8331e7c3d9896b3908 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -418,9 +418,8 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
      * @param z Z-coordinate of the chunk
      * @return Whether the chunk was actually refreshed
      *
-     * @deprecated This method is not guaranteed to work suitably across all client implementations.
      */
-    @Deprecated
+    //@Deprecated // Paper
     public boolean refreshChunk(int x, int z);
 
     /**
@@ -3813,6 +3812,7 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
     StructureSearchResult locateNearestStructure(@NotNull Location origin, @NotNull Structure structure, int radius, boolean findUnexplored);
 
     // Spigot start
+    @Deprecated(forRemoval = true) // Paper
     public class Spigot {
 
         /**
@@ -3846,7 +3846,11 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
         }
     }
 
+    /**
+     * @deprecated Unsupported api
+     */
     @NotNull
+    @Deprecated // Paper
     Spigot spigot();
     // Spigot end
 
@@ -4064,9 +4068,9 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
          * Gets the dimension ID of this environment
          *
          * @return dimension ID
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         public int getId() {
             return id;
         }
@@ -4076,9 +4080,9 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
          *
          * @param id The ID of the environment
          * @return The environment
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         @Nullable
         public static Environment getEnvironment(int id) {
             return lookup.get(id);
diff --git a/src/main/java/org/bukkit/block/Block.java b/src/main/java/org/bukkit/block/Block.java
index bb3cf2c5e2acbcd7cf53ad8551a5b11fa6104ada..e4393f2bd71308a58305cb870271d6a647ffcd92 100644
--- a/src/main/java/org/bukkit/block/Block.java
+++ b/src/main/java/org/bukkit/block/Block.java
@@ -526,7 +526,7 @@ public interface Block extends Metadatable, Translatable {
      * @return a list of dropped items for this type of block
      */
     @NotNull
-    Collection<ItemStack> getDrops(@NotNull ItemStack tool, @Nullable Entity entity);
+    Collection<ItemStack> getDrops(@Nullable ItemStack tool, @Nullable Entity entity); // Paper
 
     /**
      * Returns if the given item is a preferred choice to break this Block.
diff --git a/src/main/java/org/bukkit/block/BlockState.java b/src/main/java/org/bukkit/block/BlockState.java
index 3e07fc1bc0e08d0cfd998711c7fd547b2b7b6b73..f4a739d8022d19a7ae0ee9bf93eb5c4846b4bd40 100644
--- a/src/main/java/org/bukkit/block/BlockState.java
+++ b/src/main/java/org/bukkit/block/BlockState.java
@@ -36,8 +36,10 @@ public interface BlockState extends Metadatable {
      * Gets the metadata for this block state.
      *
      * @return block specific metadata
+     * @deprecated use {@link #getBlockData()}
      */
     @NotNull
+    @Deprecated(forRemoval = true, since = "1.13")
     MaterialData getData();
 
     /**
@@ -151,7 +153,9 @@ public interface BlockState extends Metadatable {
      * Sets the metadata for this block state.
      *
      * @param data New block specific metadata
+     * @deprecated use {@link #setBlockData(BlockData)}
      */
+    @Deprecated(forRemoval = true, since = "1.13")
     void setData(@NotNull MaterialData data);
 
     /**
diff --git a/src/main/java/org/bukkit/block/BlockType.java b/src/main/java/org/bukkit/block/BlockType.java
index cd575a28733a101b3b18ecdeb28ce474413045d6..5ba088456e2c647a719c4ee1e6f006f5c1cca651 100644
--- a/src/main/java/org/bukkit/block/BlockType.java
+++ b/src/main/java/org/bukkit/block/BlockType.java
@@ -3576,9 +3576,14 @@ public interface BlockType extends Keyed, Translatable {
      * state as well. This method will return true if there is at least one
      * state in which additional interact handling is performed for the
      * block type.
+     * 
+     * @deprecated This method is not comprehensive and does not accurately reflect what block types are
+     * interactable. Many "interactions" are defined on the item not block, and many are conditional on some other world state
+     * checks being true.
      *
      * @return true if this block type can be interacted with.
      */
+    @Deprecated // Paper
     boolean isInteractable();
 
     /**
diff --git a/src/main/java/org/bukkit/block/BrushableBlock.java b/src/main/java/org/bukkit/block/BrushableBlock.java
index 4bd127b3646307398e0c937c3e36ab671235b72b..f2557a87f468ee20c2d276dbfc0e9a976656c75c 100644
--- a/src/main/java/org/bukkit/block/BrushableBlock.java
+++ b/src/main/java/org/bukkit/block/BrushableBlock.java
@@ -15,7 +15,7 @@ public interface BrushableBlock extends Lootable, TileState {
      *
      * @return the item
      */
-    @Nullable
+    @org.jetbrains.annotations.NotNull // Paper
     public ItemStack getItem();
 
     /**
diff --git a/src/main/java/org/bukkit/block/PistonMoveReaction.java b/src/main/java/org/bukkit/block/PistonMoveReaction.java
index b90f5dc345ad2cdd3ae353dc57f42a14c231d18a..a7b915ded9154d53ac8ca599119c1699cfca2265 100644
--- a/src/main/java/org/bukkit/block/PistonMoveReaction.java
+++ b/src/main/java/org/bukkit/block/PistonMoveReaction.java
@@ -48,9 +48,9 @@ public enum PistonMoveReaction {
 
     /**
      * @return The ID of the move reaction
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public int getId() {
         return this.id;
     }
@@ -58,9 +58,9 @@ public enum PistonMoveReaction {
     /**
      * @param id An ID
      * @return The move reaction with that ID
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static PistonMoveReaction getById(int id) {
         return byId.get(id);
diff --git a/src/main/java/org/bukkit/block/SuspiciousSand.java b/src/main/java/org/bukkit/block/SuspiciousSand.java
index a7c4e4baf14dd64e454028002c1c5d4f83ec1659..53c61cfa4c2cdc3adfe1c5b43fb15eebeb4b74d1 100644
--- a/src/main/java/org/bukkit/block/SuspiciousSand.java
+++ b/src/main/java/org/bukkit/block/SuspiciousSand.java
@@ -5,6 +5,6 @@ package org.bukkit.block;
  *
  * @see BrushableBlock
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.20")
 public interface SuspiciousSand extends BrushableBlock {
 }
diff --git a/src/main/java/org/bukkit/enchantments/Enchantment.java b/src/main/java/org/bukkit/enchantments/Enchantment.java
index 378ef178bdcf0d71b5d80fc5028ce738437f9391..25985a3872ac142c0a3b2fb2dc5387ecdd3ff5b3 100644
--- a/src/main/java/org/bukkit/enchantments/Enchantment.java
+++ b/src/main/java/org/bukkit/enchantments/Enchantment.java
@@ -263,7 +263,7 @@ public abstract class Enchantment implements Keyed, Translatable {
      * @deprecated enchantment groupings are now managed by tags, not categories
      */
     @NotNull
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.5") @org.jetbrains.annotations.Contract("-> fail") // Paper
     public abstract EnchantmentTarget getItemTarget();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/AbstractArrow.java b/src/main/java/org/bukkit/entity/AbstractArrow.java
index 493f81ba879d1eb29a32722da27e4ff7ce4c68a8..8bf9bf7940d2911486e9d3a4f688cfae3f6173f2 100644
--- a/src/main/java/org/bukkit/entity/AbstractArrow.java
+++ b/src/main/java/org/bukkit/entity/AbstractArrow.java
@@ -157,7 +157,7 @@ public interface AbstractArrow extends Projectile {
      *
      * @return The firing ItemStack
      */
-    @NotNull
+    @Nullable // Paper
     @ApiStatus.Experimental
     public ItemStack getWeapon();
 
diff --git a/src/main/java/org/bukkit/entity/Enderman.java b/src/main/java/org/bukkit/entity/Enderman.java
index 3afe2787de576f7190d87c796bea0ab34dc30248..875817b807c9f515eb07b03cc85d368955388dc3 100644
--- a/src/main/java/org/bukkit/entity/Enderman.java
+++ b/src/main/java/org/bukkit/entity/Enderman.java
@@ -25,15 +25,19 @@ public interface Enderman extends Monster {
      * Gets the id and data of the block that the Enderman is carrying.
      *
      * @return MaterialData containing the id and data of the block
+     * @deprecated use {@link #getCarriedBlock()}
      */
     @NotNull
+    @Deprecated(forRemoval = true, since = "1.13")
     public MaterialData getCarriedMaterial();
 
     /**
      * Sets the id and data of the block that the Enderman is carrying.
      *
      * @param material data to set the carried block to
+     * @deprecated use {@link #setCarriedBlock(BlockData)}
      */
+    @Deprecated(forRemoval = true, since = "1.13")
     public void setCarriedMaterial(@NotNull MaterialData material);
 
     /**
diff --git a/src/main/java/org/bukkit/entity/EntityType.java b/src/main/java/org/bukkit/entity/EntityType.java
index 17d9669be0eb48e54b230ad15e66463167cfb7d6..e758a13ea84f472dcdf7fe31e2ea23c0e554c4c7 100644
--- a/src/main/java/org/bukkit/entity/EntityType.java
+++ b/src/main/java/org/bukkit/entity/EntityType.java
@@ -428,9 +428,9 @@ public enum EntityType implements Keyed, Translatable {
      *
      * @param name the entity type's name
      * @return the matching entity type or null
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Contract("null -> null")
     @Nullable
     public static EntityType fromName(@Nullable String name) {
diff --git a/src/main/java/org/bukkit/entity/ItemDisplay.java b/src/main/java/org/bukkit/entity/ItemDisplay.java
index bd718c1cf6f20cd716d2fac11556437b4a5aab2e..586ac8abbd1a0f2724fdfadc01370cb6f1c1067a 100644
--- a/src/main/java/org/bukkit/entity/ItemDisplay.java
+++ b/src/main/java/org/bukkit/entity/ItemDisplay.java
@@ -14,7 +14,7 @@ public interface ItemDisplay extends Display {
      *
      * @return the displayed item stack
      */
-    @Nullable
+    @NotNull // Paper
     ItemStack getItemStack();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/LightningStrike.java b/src/main/java/org/bukkit/entity/LightningStrike.java
index b27447d7a2833f84cf05946c851f5b6740a578e3..5afeb2f6c82e8f752229462c2d7846f6ae7a4b44 100644
--- a/src/main/java/org/bukkit/entity/LightningStrike.java
+++ b/src/main/java/org/bukkit/entity/LightningStrike.java
@@ -84,6 +84,10 @@ public interface LightningStrike extends Entity {
     public void setCausingPlayer(@Nullable Player player);
 
     // Spigot start
+    /**
+     * @deprecated Unsupported api
+     */
+    @Deprecated // Paper
     public class Spigot extends Entity.Spigot {
 
         /**
@@ -98,8 +102,12 @@ public interface LightningStrike extends Entity {
         }
     }
 
+    /**
+     * @deprecated Unsupported api
+     */
     @NotNull
     @Override
+    @Deprecated // Paper
     Spigot spigot();
     // Spigot end
 }
diff --git a/src/main/java/org/bukkit/entity/LingeringPotion.java b/src/main/java/org/bukkit/entity/LingeringPotion.java
index bafef53c1d449135f1300c8c8fbb06f482ba67e1..f50aaddf8582be55fd4860ad374d8f2206991897 100644
--- a/src/main/java/org/bukkit/entity/LingeringPotion.java
+++ b/src/main/java/org/bukkit/entity/LingeringPotion.java
@@ -3,7 +3,8 @@ package org.bukkit.entity;
 /**
  * Represents a thrown lingering potion bottle
  *
- * @deprecated lingering status depends on only on the potion item.
+ * @deprecated should not be used for anything, use {@link ThrownPotion} and
+ * set the potion via the methods there.
  */
-@Deprecated
+@Deprecated(forRemoval = true) // Paper
 public interface LingeringPotion extends ThrownPotion { }
diff --git a/src/main/java/org/bukkit/entity/LivingEntity.java b/src/main/java/org/bukkit/entity/LivingEntity.java
index 9e0137ea412ec8c65b2903a76499ba8222446ea3..db7dafba43b50146a32d749ec043c5d548b0d6e3 100644
--- a/src/main/java/org/bukkit/entity/LivingEntity.java
+++ b/src/main/java/org/bukkit/entity/LivingEntity.java
@@ -716,7 +716,9 @@ public interface LivingEntity extends Attributable, Damageable, ProjectileSource
      * This may have unexpected results if the entity is not in water.
      *
      * @param swimming True if the entity is swimming.
+     * @deprecated This does nothing and is immediately reverted by the server, in the next tick <!-- Paper - future note: should wait a mojang input client/server side -->
      */
+    @Deprecated // Paper
     public void setSwimming(boolean swimming);
 
     /**
@@ -981,7 +983,7 @@ public interface LivingEntity extends Attributable, Damageable, ProjectileSource
      * @deprecated entity groupings are now managed by tags, not categories
      */
     @NotNull
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.5") @org.jetbrains.annotations.Contract("-> fail") // Paper
     public EntityCategory getCategory();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/Minecart.java b/src/main/java/org/bukkit/entity/Minecart.java
index 4910075d0fb21b4dc4fab57894f9c7cca3093e3b..9125cc9f60258938946ee30932f0299edcd9573b 100644
--- a/src/main/java/org/bukkit/entity/Minecart.java
+++ b/src/main/java/org/bukkit/entity/Minecart.java
@@ -106,7 +106,9 @@ public interface Minecart extends Vehicle {
      * Passing a null value will set the minecart to have no display block.
      *
      * @param material the material to set as display block.
+     * @deprecated use {@link #setDisplayBlockData(BlockData)}
      */
+    @Deprecated(forRemoval = true, since = "1.13")
     public void setDisplayBlock(@Nullable MaterialData material);
 
     /**
@@ -114,8 +116,10 @@ public interface Minecart extends Vehicle {
      * This function will return the type AIR if none is set.
      *
      * @return the block displayed by this minecart.
+     * @deprecated use {@link #getDisplayBlockData()}
      */
     @NotNull
+    @Deprecated(forRemoval = true, since = "1.13")
     public MaterialData getDisplayBlock();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/OminousItemSpawner.java b/src/main/java/org/bukkit/entity/OminousItemSpawner.java
index 60522888bc320ba0a55655532e19185fac816bd1..4aa07d4edb2c81d0ae7999b30ad53ff8bb884ec7 100644
--- a/src/main/java/org/bukkit/entity/OminousItemSpawner.java
+++ b/src/main/java/org/bukkit/entity/OminousItemSpawner.java
@@ -15,7 +15,7 @@ public interface OminousItemSpawner extends Entity {
      *
      * @return the item
      */
-    @Nullable
+    @org.jetbrains.annotations.NotNull // Paper
     ItemStack getItem();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
index 76ffe308ae2e3bc36c0e7e1a98adc4b307f4211f..80e894e3d625cde14bfe881d2c367b43a4882cfd 100644
--- a/src/main/java/org/bukkit/entity/Player.java
+++ b/src/main/java/org/bukkit/entity/Player.java
@@ -1680,11 +1680,8 @@ public interface Player extends HumanEntity, Conversable, OfflinePlayer, PluginM
 
     /**
      * Forces an update of the player's entire inventory.
-     *
-     * @apiNote It should not be necessary for plugins to use this method. If it
-     * is required for some reason, it is probably a bug.
      */
-    @ApiStatus.Internal
+    // @ApiStatus.Internal // Paper - is valid API
     public void updateInventory();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/Projectile.java b/src/main/java/org/bukkit/entity/Projectile.java
index 906b33b7569fff5dd78258f9765e879180a52834..06e3ad9cd8f39de0ef6ead794df1492415bc4302 100644
--- a/src/main/java/org/bukkit/entity/Projectile.java
+++ b/src/main/java/org/bukkit/entity/Projectile.java
@@ -29,7 +29,7 @@ public interface Projectile extends Entity {
      * @return true if it should bounce.
      * @deprecated does not do anything
      */
-    @Deprecated
+    @Deprecated(forRemoval = true)
     public boolean doesBounce();
 
     /**
@@ -39,6 +39,6 @@ public interface Projectile extends Entity {
      * @param doesBounce whether or not it should bounce.
      * @deprecated does not do anything
      */
-    @Deprecated
+    @Deprecated(forRemoval = true)
     public void setBounce(boolean doesBounce);
 }
diff --git a/src/main/java/org/bukkit/entity/SplashPotion.java b/src/main/java/org/bukkit/entity/SplashPotion.java
index 9cb08fe7201a9f91e88c7b1ee22c17889a7bf1c3..c0fcfccdf476106b48e626a099658c04244ebff8 100644
--- a/src/main/java/org/bukkit/entity/SplashPotion.java
+++ b/src/main/java/org/bukkit/entity/SplashPotion.java
@@ -3,7 +3,8 @@ package org.bukkit.entity;
 /**
  * Represents a thrown splash potion bottle
  *
- * @deprecated splash status depends on only on the potion item.
+ * @deprecated should not be used for anything, use {@link ThrownPotion} and
+ * set the potion via the methods there.
  */
-@Deprecated
+@Deprecated(forRemoval = true) // Paper
 public interface SplashPotion extends ThrownPotion { }
diff --git a/src/main/java/org/bukkit/entity/ZombieVillager.java b/src/main/java/org/bukkit/entity/ZombieVillager.java
index 7cc1d9a966454af70b7c25735fe474fe3eb97eb4..e38f38ebfc6e85f29b09c4bb3e2ea79639078ad0 100644
--- a/src/main/java/org/bukkit/entity/ZombieVillager.java
+++ b/src/main/java/org/bukkit/entity/ZombieVillager.java
@@ -13,15 +13,15 @@ public interface ZombieVillager extends Zombie {
      * Sets the villager profession of this zombie.
      */
     @Override
-    void setVillagerProfession(@Nullable Villager.Profession profession);
+    void setVillagerProfession(@NotNull Villager.Profession profession); // Paper
 
     /**
      * Returns the villager profession of this zombie.
      *
-     * @return the profession or null
+     * @return the profession
      */
     @Override
-    @Nullable
+    @NotNull // Paper
     Villager.Profession getVillagerProfession();
 
     /**
diff --git a/src/main/java/org/bukkit/entity/memory/MemoryKey.java b/src/main/java/org/bukkit/entity/memory/MemoryKey.java
index 8f601e85df580ef8106eaff8b9eafb5691a4874b..d615c006c9153fb65024241604b744fbfc383efc 100644
--- a/src/main/java/org/bukkit/entity/memory/MemoryKey.java
+++ b/src/main/java/org/bukkit/entity/memory/MemoryKey.java
@@ -69,6 +69,12 @@ public final class MemoryKey<T> implements Keyed {
     public static final MemoryKey<Location> LIKED_NOTEBLOCK_POSITION = new MemoryKey<>(NamespacedKey.minecraft("liked_noteblock"), Location.class);
     public static final MemoryKey<Integer> LIKED_NOTEBLOCK_COOLDOWN_TICKS = new MemoryKey<>(NamespacedKey.minecraft("liked_noteblock_cooldown_ticks"), Integer.class);
     public static final MemoryKey<Integer> ITEM_PICKUP_COOLDOWN_TICKS = new MemoryKey<>(NamespacedKey.minecraft("item_pickup_cooldown_ticks"), Integer.class);
+    /**
+     * @deprecated this constant uses the wrong generic type, the sniffer now stores different positions
+     * from possibly different worlds. Use the relevant methods in {@link org.bukkit.entity.Sniffer} directly
+     * for now.
+     */
+    @Deprecated // Paper
     public static final MemoryKey<Location> SNIFFER_EXPLORED_POSITIONS = new MemoryKey<>(NamespacedKey.minecraft("sniffer_explored_positions"), Location.class);
 
     /**
diff --git a/src/main/java/org/bukkit/event/block/BrewingStartEvent.java b/src/main/java/org/bukkit/event/block/BrewingStartEvent.java
index 9e54ef5b60bf5583c12e1edfa76f19013a5b2a65..37be83184cae203d5e99518b0ff5c708fafb0331 100644
--- a/src/main/java/org/bukkit/event/block/BrewingStartEvent.java
+++ b/src/main/java/org/bukkit/event/block/BrewingStartEvent.java
@@ -8,6 +8,7 @@ import org.jetbrains.annotations.NotNull;
 /**
  * Called when a brewing stand starts to brew.
  */
+@org.jetbrains.annotations.ApiStatus.Experimental // Paper
 public class BrewingStartEvent extends InventoryBlockStartEvent {
 
     private static final HandlerList handlers = new HandlerList();
diff --git a/src/main/java/org/bukkit/event/block/CampfireStartEvent.java b/src/main/java/org/bukkit/event/block/CampfireStartEvent.java
index 53119742beda00a38111063243665bb995ae2188..2d084214e991fecc51f8e18e3d733e43b1dca248 100644
--- a/src/main/java/org/bukkit/event/block/CampfireStartEvent.java
+++ b/src/main/java/org/bukkit/event/block/CampfireStartEvent.java
@@ -9,6 +9,7 @@ import org.jetbrains.annotations.NotNull;
 /**
  * Called when a Campfire starts to cook.
  */
+@org.jetbrains.annotations.ApiStatus.Experimental // Paper
 public class CampfireStartEvent extends InventoryBlockStartEvent {
 
     private static final HandlerList handlers = new HandlerList();
diff --git a/src/main/java/org/bukkit/event/block/CrafterCraftEvent.java b/src/main/java/org/bukkit/event/block/CrafterCraftEvent.java
index f4efb2190ae4b1fa1823d5c97ad518c6d34f0a1a..3d6c0ecc70a748b8508b55513f9d5fa6b4bd6353 100644
--- a/src/main/java/org/bukkit/event/block/CrafterCraftEvent.java
+++ b/src/main/java/org/bukkit/event/block/CrafterCraftEvent.java
@@ -17,6 +17,7 @@ public class CrafterCraftEvent extends BlockEvent implements Cancellable {
     private ItemStack result;
     private boolean cancelled;
 
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper - fix upstream annotation mistakes
     public CrafterCraftEvent(@NotNull Block theBlock, @NotNull CraftingRecipe recipe, @NotNull ItemStack result) {
         super(theBlock);
         this.result = result;
diff --git a/src/main/java/org/bukkit/event/enchantment/PrepareItemEnchantEvent.java b/src/main/java/org/bukkit/event/enchantment/PrepareItemEnchantEvent.java
index 7ae338bcecff2ce25939035181457ced505b3a49..27564727edbd9f093e3a021ce6f30e1146a8ddbb 100644
--- a/src/main/java/org/bukkit/event/enchantment/PrepareItemEnchantEvent.java
+++ b/src/main/java/org/bukkit/event/enchantment/PrepareItemEnchantEvent.java
@@ -23,7 +23,7 @@ public class PrepareItemEnchantEvent extends InventoryEvent implements Cancellab
     private boolean cancelled;
     private final Player enchanter;
 
-    public PrepareItemEnchantEvent(@NotNull final Player enchanter, @NotNull EnchantmentView view, @NotNull final Block table, @NotNull final ItemStack item, @NotNull final EnchantmentOffer[] offers, final int bonus) {
+    public PrepareItemEnchantEvent(@NotNull final Player enchanter, @NotNull EnchantmentView view, @NotNull final Block table, @NotNull final ItemStack item, @org.jetbrains.annotations.Nullable final EnchantmentOffer @NotNull [] offers, final int bonus) { // Paper - offers can contain null values
         super(view);
         this.enchanter = enchanter;
         this.table = table;
@@ -86,8 +86,7 @@ public class PrepareItemEnchantEvent extends InventoryEvent implements Cancellab
      *
      * @return list of available enchantment offers
      */
-    @NotNull
-    public EnchantmentOffer[] getOffers() {
+    public @org.jetbrains.annotations.Nullable EnchantmentOffer @NotNull [] getOffers() { // Paper offers can contain null values
         return offers;
     }
 
diff --git a/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java b/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java
index d743cc5ee34fd7bc5db92f4b17fed9f3aa5ffbcc..8fdfcbc7d20fe0af6b220ab94516247093637621 100644
--- a/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityPotionEffectEvent.java
@@ -218,7 +218,10 @@ public class EntityPotionEffectEvent extends EntityEvent implements Cancellable
         MILK,
         /**
          * When a player gets bad omen after killing a patrol captain.
+         *
+         * @deprecated no longer used, player now gets an ominous bottle instead
          */
+        @Deprecated(since = "1.21") // Paper
         PATROL_CAPTAIN,
         /**
          * When a potion effect is modified through the plugin methods.
diff --git a/src/main/java/org/bukkit/event/entity/EntityTargetLivingEntityEvent.java b/src/main/java/org/bukkit/event/entity/EntityTargetLivingEntityEvent.java
index 090ec6f96ca9b7f760389994da988c44c32b9976..e6b4d4c1722bf4a11744a421d09646b22745b138 100644
--- a/src/main/java/org/bukkit/event/entity/EntityTargetLivingEntityEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityTargetLivingEntityEvent.java
@@ -10,7 +10,7 @@ import org.jetbrains.annotations.Nullable;
  * LivingEntity's.
  */
 public class EntityTargetLivingEntityEvent extends EntityTargetEvent {
-    public EntityTargetLivingEntityEvent(@NotNull final Entity entity, @Nullable final LivingEntity target, @Nullable final TargetReason reason) {
+    public EntityTargetLivingEntityEvent(@NotNull final Entity entity, @Nullable final LivingEntity target, @NotNull final TargetReason reason) { // Paper
         super(entity, target, reason);
     }
 
diff --git a/src/main/java/org/bukkit/event/entity/EntityToggleSwimEvent.java b/src/main/java/org/bukkit/event/entity/EntityToggleSwimEvent.java
index e1123295b9511a2c610a1baf7195638f7f3e64c4..273ae8e5da0a858d3b82d1b0f5992318ff49f145 100644
--- a/src/main/java/org/bukkit/event/entity/EntityToggleSwimEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityToggleSwimEvent.java
@@ -24,6 +24,14 @@ public class EntityToggleSwimEvent extends EntityEvent implements Cancellable {
         return cancel;
     }
 
+    /**
+     * @deprecated This does nothing, the server and the client doesn't work
+     * correctly when the server try to bypass this. A current workaround
+     * exists. If you want to cancel the switch from the ground state to the
+     * swimming state you need to disable the sprinting flag for the player after
+     * the cancel action.
+     */
+    @Deprecated // Paper
     @Override
     public void setCancelled(boolean cancel) {
         this.cancel = cancel;
diff --git a/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java b/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java
index 56e6024f1fa64569481543dc076e575bb512eef0..7fccda2a48f7bac7da54862c5cb8f1b484cc9da9 100644
--- a/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java
+++ b/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java
@@ -19,22 +19,27 @@ public class ProjectileHitEvent extends EntityEvent implements Cancellable {
     private final BlockFace hitFace;
     private boolean cancel = false;
 
+    @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
     public ProjectileHitEvent(@NotNull final Projectile projectile) {
-        this(projectile, null, null);
+        this(projectile, null, null, null); // Paper
     }
 
+    @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
     public ProjectileHitEvent(@NotNull final Projectile projectile, @Nullable Entity hitEntity) {
-        this(projectile, hitEntity, null);
+        this(projectile, hitEntity, null, null); // Paper
     }
 
+    @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
     public ProjectileHitEvent(@NotNull final Projectile projectile, @Nullable Block hitBlock) {
-        this(projectile, null, hitBlock);
+        this(projectile, null, hitBlock, null); // Paper
     }
 
+    @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
     public ProjectileHitEvent(@NotNull final Projectile projectile, @Nullable Entity hitEntity, @Nullable Block hitBlock) {
         this(projectile, hitEntity, hitBlock, null);
     }
 
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public ProjectileHitEvent(@NotNull final Projectile projectile, @Nullable Entity hitEntity, @Nullable Block hitBlock, @Nullable BlockFace hitFace) {
         super(projectile);
         this.hitEntity = hitEntity;
diff --git a/src/main/java/org/bukkit/event/entity/SpawnerSpawnEvent.java b/src/main/java/org/bukkit/event/entity/SpawnerSpawnEvent.java
index 9353f0d09272404f42167ab8b7ad83a03620c436..f3ec8f67328b266defb31a44a36d31401d5e9371 100644
--- a/src/main/java/org/bukkit/event/entity/SpawnerSpawnEvent.java
+++ b/src/main/java/org/bukkit/event/entity/SpawnerSpawnEvent.java
@@ -12,12 +12,19 @@ import org.jetbrains.annotations.NotNull;
 public class SpawnerSpawnEvent extends EntitySpawnEvent {
     private final CreatureSpawner spawner;
 
-    public SpawnerSpawnEvent(@NotNull final Entity spawnee, @NotNull final CreatureSpawner spawner) {
+    public SpawnerSpawnEvent(@NotNull final Entity spawnee, @org.jetbrains.annotations.Nullable final CreatureSpawner spawner) { // Paper
         super(spawnee);
         this.spawner = spawner;
     }
 
-    @NotNull
+    /**
+     * Gets the spawner tile state, or null
+     * when the entity is spawned from a minecart
+     * spawner.
+     *
+     * @return the spawner tile state
+     */
+    @org.jetbrains.annotations.Nullable // Paper
     public CreatureSpawner getSpawner() {
         return spawner;
     }
diff --git a/src/main/java/org/bukkit/event/hanging/HangingBreakByEntityEvent.java b/src/main/java/org/bukkit/event/hanging/HangingBreakByEntityEvent.java
index 68517811f63838bdad41073ee26be82f95042a8e..454885e47611edd707358ddfe0a01b7acf9ad5c8 100644
--- a/src/main/java/org/bukkit/event/hanging/HangingBreakByEntityEvent.java
+++ b/src/main/java/org/bukkit/event/hanging/HangingBreakByEntityEvent.java
@@ -11,22 +11,21 @@ import org.jetbrains.annotations.Nullable;
 public class HangingBreakByEntityEvent extends HangingBreakEvent {
     private final Entity remover;
 
-    public HangingBreakByEntityEvent(@NotNull final Hanging hanging, @Nullable final Entity remover) {
+    public HangingBreakByEntityEvent(@NotNull final Hanging hanging, @NotNull final Entity remover) { // Paper
         this(hanging, remover, HangingBreakEvent.RemoveCause.ENTITY);
     }
 
-    public HangingBreakByEntityEvent(@NotNull final Hanging hanging, @Nullable final Entity remover, @NotNull final HangingBreakEvent.RemoveCause cause) {
+    public HangingBreakByEntityEvent(@NotNull final Hanging hanging, @NotNull final Entity remover, @NotNull final HangingBreakEvent.RemoveCause cause) { // Paper
         super(hanging, cause);
         this.remover = remover;
     }
 
     /**
      * Gets the entity that removed the hanging entity.
-     * May be null, for example when broken by an explosion.
      *
      * @return the entity that removed the hanging entity
      */
-    @Nullable
+    @NotNull // Paper
     public Entity getRemover() {
         return remover;
     }
diff --git a/src/main/java/org/bukkit/event/inventory/HopperInventorySearchEvent.java b/src/main/java/org/bukkit/event/inventory/HopperInventorySearchEvent.java
index 80a0a4ad813d6453b30273d25942e6612bb05c1b..18bb808e73c7a78f367ccdb44d5fe12bc54672cb 100644
--- a/src/main/java/org/bukkit/event/inventory/HopperInventorySearchEvent.java
+++ b/src/main/java/org/bukkit/event/inventory/HopperInventorySearchEvent.java
@@ -34,7 +34,7 @@ public class HopperInventorySearchEvent extends BlockEvent {
         DESTINATION;
     }
 
-    public HopperInventorySearchEvent(@NotNull Inventory inventory, @NotNull ContainerType containerType, @NotNull Block hopper, @NotNull Block searchBlock) {
+    public HopperInventorySearchEvent(@Nullable Inventory inventory, @NotNull ContainerType containerType, @NotNull Block hopper, @NotNull Block searchBlock) { // Paper
         super(hopper);
         this.inventory = inventory;
         this.containerType = containerType;
diff --git a/src/main/java/org/bukkit/event/inventory/InventoryClickEvent.java b/src/main/java/org/bukkit/event/inventory/InventoryClickEvent.java
index f2a2a2ad9930499c5bf624e73571a3294a90db14..c8540a42ab44647fdd112ce4f731f3dc0df552f4 100644
--- a/src/main/java/org/bukkit/event/inventory/InventoryClickEvent.java
+++ b/src/main/java/org/bukkit/event/inventory/InventoryClickEvent.java
@@ -88,7 +88,7 @@ public class InventoryClickEvent extends InventoryInteractEvent {
      *
      * @return the cursor ItemStack
      */
-    @Nullable
+    @NotNull // Paper - fix nullability
     public ItemStack getCursor() {
         return getView().getCursor();
     }
diff --git a/src/main/java/org/bukkit/event/inventory/InventoryType.java b/src/main/java/org/bukkit/event/inventory/InventoryType.java
index 3e6ac5beb137efd8ecd80e2e9b17015cb38e8a0a..ae4ae1fa6d407665ef03edcdef683d741668acf1 100644
--- a/src/main/java/org/bukkit/event/inventory/InventoryType.java
+++ b/src/main/java/org/bukkit/event/inventory/InventoryType.java
@@ -155,7 +155,7 @@ public enum InventoryType {
      *
      * @deprecated use {@link #SMITHING}
      */
-    @Deprecated
+    @Deprecated(forRemoval = true) // Paper
     SMITHING_NEW(4, "Upgrade Gear", MenuType.SMITHING),
     ;
 
diff --git a/src/main/java/org/bukkit/event/player/PlayerBedLeaveEvent.java b/src/main/java/org/bukkit/event/player/PlayerBedLeaveEvent.java
index 1cb70b5c8776863f44f1c4cdde152c35cb51edb5..f09b378508fcc6299e7cb40f174028f6f88ba067 100644
--- a/src/main/java/org/bukkit/event/player/PlayerBedLeaveEvent.java
+++ b/src/main/java/org/bukkit/event/player/PlayerBedLeaveEvent.java
@@ -43,7 +43,10 @@ public class PlayerBedLeaveEvent extends PlayerEvent implements Cancellable {
      * {@link Player#setBedSpawnLocation(Location)}.
      *
      * @return true if the spawn location will be changed
+     * @deprecated the respawn point is now set when the player enter the bed and
+     * this option doesn't work since MC 1.15.
      */
+    @Deprecated(forRemoval = true) // Paper - Unused
     public boolean shouldSetSpawnLocation() {
         return setBedSpawn;
     }
@@ -59,7 +62,10 @@ public class PlayerBedLeaveEvent extends PlayerEvent implements Cancellable {
      * {@link Player#setBedSpawnLocation(Location)}.
      *
      * @param setBedSpawn true to change the new spawn location
+     * @deprecated the respawn point is now set when the player enter the bed and
+     * this option doesn't work since MC 1.15.
      */
+    @Deprecated(forRemoval = true) // Paper - Unused
     public void setSpawnLocation(boolean setBedSpawn) {
         this.setBedSpawn = setBedSpawn;
     }
diff --git a/src/main/java/org/bukkit/event/player/PlayerMoveEvent.java b/src/main/java/org/bukkit/event/player/PlayerMoveEvent.java
index 1b2267f4e8ebded198773ec80e2bff2c861c7084..1a58734d919fae247eeb85dd785fd59990856505 100644
--- a/src/main/java/org/bukkit/event/player/PlayerMoveEvent.java
+++ b/src/main/java/org/bukkit/event/player/PlayerMoveEvent.java
@@ -78,7 +78,7 @@ public class PlayerMoveEvent extends PlayerEvent implements Cancellable {
      *
      * @return Location the player moved to
      */
-    @Nullable
+    @NotNull // Paper
     public Location getTo() {
         return to;
     }
diff --git a/src/main/java/org/bukkit/event/raid/RaidSpawnWaveEvent.java b/src/main/java/org/bukkit/event/raid/RaidSpawnWaveEvent.java
index cd58dd7de781823804701fc023706e805c0142a8..1b8bb5241efcf4a90fd098f2000f8394072dca4a 100644
--- a/src/main/java/org/bukkit/event/raid/RaidSpawnWaveEvent.java
+++ b/src/main/java/org/bukkit/event/raid/RaidSpawnWaveEvent.java
@@ -19,7 +19,7 @@ public class RaidSpawnWaveEvent extends RaidEvent {
     private final List<Raider> raiders;
     private final Raider leader;
 
-    public RaidSpawnWaveEvent(@NotNull Raid raid, @NotNull World world, @Nullable Raider leader, @NotNull List<Raider> raiders) {
+    public RaidSpawnWaveEvent(@NotNull Raid raid, @NotNull World world, @NotNull Raider leader, @NotNull List<Raider> raiders) { // Paper
         super(raid, world);
         this.raiders = raiders;
         this.leader = leader;
@@ -30,7 +30,7 @@ public class RaidSpawnWaveEvent extends RaidEvent {
      *
      * @return {@link Raider}
      */
-    @Nullable
+    @NotNull // Paper
     public Raider getPatrolLeader() {
         return leader;
     }
diff --git a/src/main/java/org/bukkit/event/vehicle/VehicleEntityCollisionEvent.java b/src/main/java/org/bukkit/event/vehicle/VehicleEntityCollisionEvent.java
index 6bafc62e2235a6b783cbf96f4dabeeaf02bd5178..50c762d777ac90a05772501a28cacff8fd3f5126 100644
--- a/src/main/java/org/bukkit/event/vehicle/VehicleEntityCollisionEvent.java
+++ b/src/main/java/org/bukkit/event/vehicle/VehicleEntityCollisionEvent.java
@@ -36,18 +36,22 @@ public class VehicleEntityCollisionEvent extends VehicleCollisionEvent implement
         this.cancelled = cancel;
     }
 
+    @Deprecated(forRemoval = true) // Paper - Unused
     public boolean isPickupCancelled() {
         return cancelledPickup;
     }
 
+    @Deprecated(forRemoval = true) // Paper - Unused
     public void setPickupCancelled(boolean cancel) {
         cancelledPickup = cancel;
     }
 
+    @Deprecated(forRemoval = true) // Paper - Unused
     public boolean isCollisionCancelled() {
         return cancelledCollision;
     }
 
+    @Deprecated(forRemoval = true) // Paper - Unused
     public void setCollisionCancelled(boolean cancel) {
         cancelledCollision = cancel;
     }
diff --git a/src/main/java/org/bukkit/generator/ChunkGenerator.java b/src/main/java/org/bukkit/generator/ChunkGenerator.java
index c0b749a5bbf4980d01fed74768bb61909b579cb9..7e7a53b41013f1bf8956c0e278820f18d77b2f0d 100644
--- a/src/main/java/org/bukkit/generator/ChunkGenerator.java
+++ b/src/main/java/org/bukkit/generator/ChunkGenerator.java
@@ -656,7 +656,9 @@ public abstract class ChunkGenerator {
          * @param y the y location in the chunk from minHeight (inclusive) - maxHeight (exclusive)
          * @param z the z location in the chunk from 0-15 inclusive
          * @param material the type to set the block to
+         * @deprecated use {@link #setBlock(int, int, int, BlockData)}
          */
+        @Deprecated // Paper
         public void setBlock(int x, int y, int z, @NotNull MaterialData material);
 
         /**
@@ -700,7 +702,9 @@ public abstract class ChunkGenerator {
          * @param yMax maximum y location (exclusive) in the chunk to set
          * @param zMax maximum z location (exclusive) in the chunk to set
          * @param material the type to set the blocks to
+         * @deprecated use {@link #setRegion(int, int, int, int, int, int, BlockData)}
          */
+        @Deprecated // Paper
         public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, @NotNull MaterialData material);
 
         /**
@@ -741,8 +745,10 @@ public abstract class ChunkGenerator {
          * @param y the y location in the chunk from minHeight (inclusive) - maxHeight (exclusive)
          * @param z the z location in the chunk from 0-15 inclusive
          * @return the type and data of the block or the MaterialData for air if x, y or z are outside the chunk's bounds
+         * @deprecated use {@link #getBlockData(int, int, int)}
          */
         @NotNull
+        @Deprecated // Paper
         public MaterialData getTypeAndData(int x, int y, int z);
 
         /**
diff --git a/src/main/java/org/bukkit/inventory/CookingRecipe.java b/src/main/java/org/bukkit/inventory/CookingRecipe.java
index 571652ba8843a9493f1843523e24145baa958637..f7fa79393aef40027446b78bac8e9490cfafd8bc 100644
--- a/src/main/java/org/bukkit/inventory/CookingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/CookingRecipe.java
@@ -68,7 +68,9 @@ public abstract class CookingRecipe<T extends CookingRecipe> implements Recipe,
      * Get the input material.
      *
      * @return The input material.
+     * @deprecated Use {@link #getInputChoice()} instead for more complete data.
      */
+    @Deprecated // Paper
     @NotNull
     public ItemStack getInput() {
         return this.ingredient.getItemStack();
diff --git a/src/main/java/org/bukkit/inventory/CraftingInventory.java b/src/main/java/org/bukkit/inventory/CraftingInventory.java
index df81bac9ecff697f98941e5c8490e10391e90090..a32977ba3ba60a1c9aee6e469d5d6cd1887c55a2 100644
--- a/src/main/java/org/bukkit/inventory/CraftingInventory.java
+++ b/src/main/java/org/bukkit/inventory/CraftingInventory.java
@@ -21,8 +21,7 @@ public interface CraftingInventory extends Inventory {
      *
      * @return The contents. Individual entries may be null.
      */
-    @NotNull
-    ItemStack[] getMatrix();
+    @Nullable ItemStack @NotNull [] getMatrix(); // Paper - make array elements nullable instead array
 
     /**
      * Set the item in the result slot of the crafting inventory.
@@ -38,7 +37,7 @@ public interface CraftingInventory extends Inventory {
      * @throws IllegalArgumentException if the length of contents is greater
      *     than the size of the crafting matrix.
      */
-    void setMatrix(@NotNull ItemStack[] contents);
+    void setMatrix(@Nullable ItemStack @NotNull [] contents); // Paper - make array elements nullable instead array
 
     /**
      * Get the current recipe formed on the crafting inventory, if any.
diff --git a/src/main/java/org/bukkit/inventory/EntityEquipment.java b/src/main/java/org/bukkit/inventory/EntityEquipment.java
index 2dde946443fee1f6e79b882cbcb448549dc0c99c..127302aa7c22f59438de66fffa0b03ae84a2a8ad 100644
--- a/src/main/java/org/bukkit/inventory/EntityEquipment.java
+++ b/src/main/java/org/bukkit/inventory/EntityEquipment.java
@@ -525,6 +525,6 @@ public interface EntityEquipment {
      *
      * @return the entity this EntityEquipment belongs to
      */
-    @Nullable
+    @NotNull // Paper
     Entity getHolder();
 }
diff --git a/src/main/java/org/bukkit/inventory/FurnaceRecipe.java b/src/main/java/org/bukkit/inventory/FurnaceRecipe.java
index 1d442dc16cbb0fed21714d47007f3f11e30c57d4..af8f7b88edf0fa790edcf16356a030c4834f531e 100644
--- a/src/main/java/org/bukkit/inventory/FurnaceRecipe.java
+++ b/src/main/java/org/bukkit/inventory/FurnaceRecipe.java
@@ -67,8 +67,10 @@ public class FurnaceRecipe extends CookingRecipe<FurnaceRecipe> {
      *
      * @param input The input material.
      * @return The changed recipe, so you can chain calls.
+     * @deprecated use {@link #setInputChoice(RecipeChoice)}
      */
     @NotNull
+    @Deprecated
     public FurnaceRecipe setInput(@NotNull MaterialData input) {
         return setInput(input.getItemType(), input.getData());
     }
diff --git a/src/main/java/org/bukkit/inventory/Inventory.java b/src/main/java/org/bukkit/inventory/Inventory.java
index f1a48eab1a357ae64545e1f1dc941c383cff8707..466d1bd7089b76f48f953e1a51c611ecd93dcd54 100644
--- a/src/main/java/org/bukkit/inventory/Inventory.java
+++ b/src/main/java/org/bukkit/inventory/Inventory.java
@@ -161,8 +161,7 @@ public interface Inventory extends Iterable<ItemStack> {
      *
      * @return An array of ItemStacks from the inventory. Individual items may be null.
      */
-    @NotNull
-    public ItemStack[] getContents();
+    public @Nullable ItemStack @NotNull [] getContents(); // Paper - make array elements nullable instead array
 
     /**
      * Completely replaces the inventory's contents. Removes all existing
@@ -173,7 +172,7 @@ public interface Inventory extends Iterable<ItemStack> {
      * @throws IllegalArgumentException If the array has more items than the
      *     inventory.
      */
-    public void setContents(@NotNull ItemStack[] items) throws IllegalArgumentException;
+    public void setContents(@Nullable ItemStack @NotNull [] items) throws IllegalArgumentException; // Paper - make array elements nullable instead array
 
     /**
      * Return the contents from the section of the inventory where items can
@@ -186,8 +185,7 @@ public interface Inventory extends Iterable<ItemStack> {
      *
      * @return inventory storage contents. Individual items may be null.
      */
-    @NotNull
-    public ItemStack[] getStorageContents();
+    public @Nullable ItemStack @NotNull [] getStorageContents(); // Paper - make array elements nullable instead array
 
     /**
      * Put the given ItemStacks into the storage slots
@@ -196,7 +194,7 @@ public interface Inventory extends Iterable<ItemStack> {
      * @throws IllegalArgumentException If the array has more items than the
      * inventory.
      */
-    public void setStorageContents(@NotNull ItemStack[] items) throws IllegalArgumentException;
+    public void setStorageContents(@Nullable ItemStack @NotNull [] items) throws IllegalArgumentException; // Paper - make array elements nullable instead array
 
     /**
      * Checks if the inventory contains any ItemStacks with the given
diff --git a/src/main/java/org/bukkit/inventory/InventoryView.java b/src/main/java/org/bukkit/inventory/InventoryView.java
index ebc14022c9ef9b0b3331ee53e96a32667e4762e0..5c258b6077277575daa5d96349837bdf06f42500 100644
--- a/src/main/java/org/bukkit/inventory/InventoryView.java
+++ b/src/main/java/org/bukkit/inventory/InventoryView.java
@@ -123,9 +123,9 @@ public interface InventoryView {
          * Gets the id of this view.
          *
          * @return the id of this view
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         public int getId() {
             return id;
         }
@@ -195,10 +195,10 @@ public interface InventoryView {
     /**
      * Get the item on the cursor of one of the viewing players.
      *
-     * @return The item on the player's cursor, or null if they aren't holding
-     *     one.
+     * @return The item on the player's cursor, or an empty stack
+     * if they aren't holding one.
      */
-    @Nullable
+    @NotNull // Paper - fix nullability
     public ItemStack getCursor();
 
     /**
@@ -296,8 +296,10 @@ public interface InventoryView {
      * made using {@link #setTitle(String)}.
      *
      * @return the original title
+     * @deprecated changing the title is not supported
      */
     @NotNull
+    @Deprecated(since = "1.21.1") // Paper
     public String getOriginalTitle();
 
     /**
@@ -309,6 +311,9 @@ public interface InventoryView {
      * exception.
      *
      * @param title The new title.
+     * @deprecated changing the title is not supported. This method has
+     * poorly defined and broken behaviors. It should not be used.
      */
+    @Deprecated(since = "1.21.1") // Paper
     public void setTitle(@NotNull String title);
 }
diff --git a/src/main/java/org/bukkit/inventory/ItemFactory.java b/src/main/java/org/bukkit/inventory/ItemFactory.java
index c1ec8efffd5ff2a4dcb1d761be9a431a62284607..a1d8ef8eda3c0256e8c82b7a01c3e7b11454b250 100644
--- a/src/main/java/org/bukkit/inventory/ItemFactory.java
+++ b/src/main/java/org/bukkit/inventory/ItemFactory.java
@@ -29,7 +29,7 @@ public interface ItemFactory {
      * @return a new ItemMeta that could be applied to an item stack of the
      *     specified material
      */
-    @Nullable
+    @org.bukkit.UndefinedNullability // Paper
     ItemMeta getItemMeta(@NotNull final Material material);
 
     /**
diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
index d125d29759167996a90b7b69d92d944e80af22ab..e9c29fc1db686b80bc2477d78ec2b361b8600b9e 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -10,6 +10,7 @@ import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
 import org.bukkit.Registry;
 import org.bukkit.Translatable;
+import org.bukkit.UndefinedNullability;
 import org.bukkit.Utility;
 import org.bukkit.configuration.serialization.ConfigurationSerializable;
 import org.bukkit.enchantments.Enchantment;
@@ -82,7 +83,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
      * @param data the data value or null
      * @deprecated this method uses an ambiguous data byte object
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.13")
     public ItemStack(@NotNull Material type, final int amount, final short damage, @Nullable final Byte data) {
         Preconditions.checkArgument(type != null, "Material cannot be null");
         if (type.isLegacy()) {
@@ -179,8 +180,10 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
      * Gets the MaterialData for this stack of items
      *
      * @return MaterialData for this item
+     * @deprecated cast to {@link org.bukkit.inventory.meta.BlockDataMeta} and use {@link org.bukkit.inventory.meta.BlockDataMeta#getBlockData(Material)}
      */
     @Nullable
+    @Deprecated(forRemoval = true, since = "1.13")
     public MaterialData getData() {
         Material mat = Bukkit.getUnsafe().toLegacy(getType());
         if (data == null && mat != null && mat.getData() != null) {
@@ -194,7 +197,9 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
      * Sets the MaterialData for this stack of items
      *
      * @param data New MaterialData for this item
+     * @deprecated cast to {@link org.bukkit.inventory.meta.BlockDataMeta} and use {@link org.bukkit.inventory.meta.BlockDataMeta#setBlockData(org.bukkit.block.data.BlockData)}
      */
+    @Deprecated(forRemoval = true, since = "1.13")
     public void setData(@Nullable MaterialData data) {
         if (data == null) {
             this.data = data;
@@ -574,7 +579,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
      *
      * @return a copy of the current ItemStack's ItemData
      */
-    @Nullable
+    @UndefinedNullability // Paper
     public ItemMeta getItemMeta() {
         return this.meta == null ? Bukkit.getItemFactory().getItemMeta(this.type) : this.meta.clone();
     }
diff --git a/src/main/java/org/bukkit/inventory/PlayerInventory.java b/src/main/java/org/bukkit/inventory/PlayerInventory.java
index 476fe14faa39f02444cab8ad95d4401033dc6938..2c54660dc1fbc7c1232096797a23cae1262888e9 100644
--- a/src/main/java/org/bukkit/inventory/PlayerInventory.java
+++ b/src/main/java/org/bukkit/inventory/PlayerInventory.java
@@ -16,8 +16,7 @@ public interface PlayerInventory extends Inventory {
      * null and are returned in a fixed order starting from the boots and going
      * up to the helmet
      */
-    @NotNull
-    public ItemStack[] getArmorContents();
+    public @Nullable ItemStack @NotNull [] getArmorContents(); // Paper - make array elements nullable instead array
 
     /**
      * Get all additional ItemStacks stored in this inventory.
@@ -28,8 +27,7 @@ public interface PlayerInventory extends Inventory {
      *
      * @return All additional ItemStacks. Individual items can be null.
      */
-    @NotNull
-    public ItemStack[] getExtraContents();
+    public @Nullable ItemStack @NotNull [] getExtraContents(); // Paper - make array elements nullable instead array
 
     /**
      * Return the ItemStack from the helmet slot
@@ -106,9 +104,9 @@ public interface PlayerInventory extends Inventory {
      *
      * @param slot the slot to get the ItemStack
      *
-     * @return the ItemStack in the given slot or null if there is not one
+     * @return the ItemStack in the given slot
      */
-    @Nullable
+    @NotNull // Paper
     public ItemStack getItem(@NotNull EquipmentSlot slot);
 
     /**
diff --git a/src/main/java/org/bukkit/inventory/ShapedRecipe.java b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
index fa03cf187db29896f5af046b311f67881aee0ff4..295d82dd73b600e9436d2bbec0e11dbeaf78bbf4 100644
--- a/src/main/java/org/bukkit/inventory/ShapedRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
@@ -107,8 +107,10 @@ public class ShapedRecipe extends CraftingRecipe {
      * @return The changed recipe, so you can chain calls.
      * @throws IllegalArgumentException if the {@code key} is a space character
      * @throws IllegalArgumentException if the {@code key} does not appear in the shape.
+     * @deprecated use {@link #setIngredient(char, RecipeChoice)}
      */
     @NotNull
+    @Deprecated // Paper
     public ShapedRecipe setIngredient(char key, @NotNull MaterialData ingredient) {
         return setIngredient(key, ingredient.getItemType(), ingredient.getData());
     }
@@ -191,7 +193,9 @@ public class ShapedRecipe extends CraftingRecipe {
      * Get a copy of the ingredients map.
      *
      * @return The mapping of character to ingredients.
+     * @deprecated Use {@link #getChoiceMap()} instead for more complete data.
      */
+    @Deprecated // Paper
     @NotNull
     public Map<Character, ItemStack> getIngredientMap() {
         HashMap<Character, ItemStack> result = new HashMap<Character, ItemStack>();
diff --git a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
index 63a233cc819d8d6995d14b9dbfabc14d89af54cc..3bf5064cd6ceb05ea98b18993da46c67be140115 100644
--- a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
@@ -44,8 +44,10 @@ public class ShapelessRecipe extends CraftingRecipe {
      *
      * @param ingredient The ingredient to add.
      * @return The changed recipe, so you can chain calls.
+     * @deprecated use {@link #addIngredient(RecipeChoice)}
      */
     @NotNull
+    @Deprecated
     public ShapelessRecipe addIngredient(@NotNull MaterialData ingredient) {
         return addIngredient(1, ingredient);
     }
@@ -81,8 +83,10 @@ public class ShapelessRecipe extends CraftingRecipe {
      * @param count How many to add (can't be more than 9!)
      * @param ingredient The ingredient to add.
      * @return The changed recipe, so you can chain calls.
+     * @deprecated use {@link #addIngredient(int, Material)}
      */
     @NotNull
+    @Deprecated // Paper
     public ShapelessRecipe addIngredient(int count, @NotNull MaterialData ingredient) {
         return addIngredient(count, ingredient.getItemType(), ingredient.getData());
     }
@@ -199,8 +203,10 @@ public class ShapelessRecipe extends CraftingRecipe {
      *
      * @param ingredient The ingredient to remove
      * @return The changed recipe.
+     * @deprecated use {@link #removeIngredient(Material)}
      */
     @NotNull
+    @Deprecated // Paper
     public ShapelessRecipe removeIngredient(@NotNull MaterialData ingredient) {
         return removeIngredient(ingredient.getItemType(), ingredient.getData());
     }
@@ -227,8 +233,10 @@ public class ShapelessRecipe extends CraftingRecipe {
      * @param count The number of copies to remove.
      * @param ingredient The ingredient to remove.
      * @return The changed recipe.
+     * @deprecated use {@link #removeIngredient(int, Material)}
      */
     @NotNull
+    @Deprecated // Paper
     public ShapelessRecipe removeIngredient(int count, @NotNull MaterialData ingredient) {
         return removeIngredient(count, ingredient.getItemType(), ingredient.getData());
     }
@@ -278,7 +286,9 @@ public class ShapelessRecipe extends CraftingRecipe {
      * Get the list of ingredients used for this recipe.
      *
      * @return The input list
+     * @deprecated Use {@link #getChoiceList()} instead for more complete data.
      */
+    @Deprecated // Paper
     @NotNull
     public List<ItemStack> getIngredientList() {
         ArrayList<ItemStack> result = new ArrayList<ItemStack>(ingredients.size());
diff --git a/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java b/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
index 597a18a767b68b47e81454b7d44613c7178c1366..bc3440eb72127824b3961fbdae583bb61385f65e 100644
--- a/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
@@ -57,7 +57,9 @@ public class StonecuttingRecipe implements Recipe, Keyed {
      * Get the input material.
      *
      * @return The input material.
+     * @deprecated Use {@link #getInputChoice()} instead for more complete data.
      */
+    @Deprecated // Paper
     @NotNull
     public ItemStack getInput() {
         return this.ingredient.getItemStack();
diff --git a/src/main/java/org/bukkit/inventory/meta/ItemMeta.java b/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
index 480dd9a5ff334e6f32b98aa0108ff02e6f7077ab..59e1987f0f0accef369cc29dbec464185eb7c99c 100644
--- a/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
+++ b/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
@@ -151,6 +151,7 @@ public interface ItemMeta extends Cloneable, ConfigurationSerializable, Persiste
     /**
      * Checks for existence of a localized name.
      *
+     * @deprecated Use {@link ItemMeta#displayName()} and check if it is instanceof a {@link net.kyori.adventure.text.TranslatableComponent}.
      * @return true if this has a localized name
      * @deprecated meta no longer exists
      */
@@ -163,6 +164,7 @@ public interface ItemMeta extends Cloneable, ConfigurationSerializable, Persiste
      * Plugins should check that hasLocalizedName() returns <code>true</code>
      * before calling this method.
      *
+     * @deprecated Use {@link ItemMeta#displayName()} and cast it to a {@link net.kyori.adventure.text.TranslatableComponent}. No longer used by the client.
      * @return the localized name that is set
      * @deprecated meta no longer exists
      */
@@ -173,6 +175,7 @@ public interface ItemMeta extends Cloneable, ConfigurationSerializable, Persiste
     /**
      * Sets the localized name.
      *
+     * @deprecated Use {@link ItemMeta#displayName(Component)} with a {@link net.kyori.adventure.text.TranslatableComponent}. No longer used by the client.
      * @param name the name to set
      * @deprecated meta no longer exists
      */
@@ -749,7 +752,7 @@ public interface ItemMeta extends Cloneable, ConfigurationSerializable, Persiste
      *
      * @return component
      */
-    @Nullable
+    @NotNull // Paper
     JukeboxPlayableComponent getJukeboxPlayable();
 
     /**
diff --git a/src/main/java/org/bukkit/inventory/meta/MapMeta.java b/src/main/java/org/bukkit/inventory/meta/MapMeta.java
index 32055a8890425e0b819930f3059da5ea9dfca553..26a336dade83baee97d20eb39a058925659f5777 100644
--- a/src/main/java/org/bukkit/inventory/meta/MapMeta.java
+++ b/src/main/java/org/bukkit/inventory/meta/MapMeta.java
@@ -16,13 +16,8 @@ public interface MapMeta extends ItemMeta {
      *
      * @return true if this has a map ID number.
      * @see #hasMapView()
-     * @deprecated These methods are poor API: They rely on the caller to pass
-     * in an only an integer property, and have poorly defined implementation
-     * behavior if that integer is not a valid map (the current implementation
-     * for example will generate a new map with a different ID). The xxxMapView
-     * family of methods should be used instead.
      */
-    @Deprecated
+    //@Deprecated // Paper
     boolean hasMapId();
 
     /**
@@ -34,13 +29,8 @@ public interface MapMeta extends ItemMeta {
      *
      * @return the map ID that is set
      * @see #getMapView()
-     * @deprecated These methods are poor API: They rely on the caller to pass
-     * in an only an integer property, and have poorly defined implementation
-     * behavior if that integer is not a valid map (the current implementation
-     * for example will generate a new map with a different ID). The xxxMapView
-     * family of methods should be used instead.
      */
-    @Deprecated
+    //@Deprecated // Paper
     int getMapId();
 
     /**
diff --git a/src/main/java/org/bukkit/inventory/meta/components/EquippableComponent.java b/src/main/java/org/bukkit/inventory/meta/components/EquippableComponent.java
index c56e81eb71bccc03378aea71096fdf66b4bfa784..16713c9d4cfaed5ad509b4075121e44c55a8cc76 100644
--- a/src/main/java/org/bukkit/inventory/meta/components/EquippableComponent.java
+++ b/src/main/java/org/bukkit/inventory/meta/components/EquippableComponent.java
@@ -37,7 +37,7 @@ public interface EquippableComponent extends ConfigurationSerializable {
      *
      * @return the sound
      */
-    @Nullable
+    @NotNull // Paper
     Sound getEquipSound();
 
     /**
diff --git a/src/main/java/org/bukkit/map/MapCanvas.java b/src/main/java/org/bukkit/map/MapCanvas.java
index edef478786bb7456af29ca960009873095830050..e8ac449e6280827beb6d2699df75b1d52a922c9b 100644
--- a/src/main/java/org/bukkit/map/MapCanvas.java
+++ b/src/main/java/org/bukkit/map/MapCanvas.java
@@ -95,9 +95,9 @@ public interface MapCanvas {
      * @param x The x coordinate, from 0 to 127.
      * @param y The y coordinate, from 0 to 127.
      * @return The color. See {@link MapPalette}.
-     * @deprecated Magic value, use {@link #getPixelColor(int, int)}
+     * @deprecated use {@link #getPixelColor(int, int)}
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     public byte getPixel(int x, int y);
 
     /**
@@ -106,9 +106,9 @@ public interface MapCanvas {
      * @param x The x coordinate, from 0 to 127.
      * @param y The y coordinate, from 0 to 127.
      * @return The color. See {@link MapPalette}.
-     * @deprecated Magic value, use {@link #getBasePixelColor(int, int)}
+     * @deprecated use {@link #getBasePixelColor(int, int)}
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     public byte getBasePixel(int x, int y);
 
     /**
diff --git a/src/main/java/org/bukkit/map/MapCursor.java b/src/main/java/org/bukkit/map/MapCursor.java
index 871adbf2f9015dffac9edc3ce35aa6acd3b75526..0899981b9ab1f98dacc617156d12779421e4c275 100644
--- a/src/main/java/org/bukkit/map/MapCursor.java
+++ b/src/main/java/org/bukkit/map/MapCursor.java
@@ -163,9 +163,9 @@ public final class MapCursor {
      * Get the type of this cursor.
      *
      * @return The type (color/style) of the map cursor.
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     public byte getRawType() {
         return type.getValue();
     }
@@ -220,9 +220,9 @@ public final class MapCursor {
      * Set the type of this cursor.
      *
      * @param type The type (color/style) of the map cursor.
-     * @deprecated Magic value
+     * @deprecated use {@link #setType(Type)}
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     public void setRawType(byte type) {
         Type enumType = Type.byValue(type);
         Preconditions.checkArgument(enumType != null, "Unknown type by id %s", type);
@@ -332,9 +332,9 @@ public final class MapCursor {
          * Gets the internal value of the cursor.
          *
          * @return the value
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         byte getValue();
 
         /**
@@ -342,9 +342,9 @@ public final class MapCursor {
          *
          * @param value the value
          * @return the matching type
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         @Nullable
         static Type byValue(byte value) {
             for (Type t : values()) {
diff --git a/src/main/java/org/bukkit/map/MapPalette.java b/src/main/java/org/bukkit/map/MapPalette.java
index 3a9aaca2e76411a9c27f9f5e0f22d060d5a66d06..c80faa079eca1564847070f0338fc98024639829 100644
--- a/src/main/java/org/bukkit/map/MapPalette.java
+++ b/src/main/java/org/bukkit/map/MapPalette.java
@@ -197,9 +197,9 @@ public final class MapPalette {
      *
      * @param image The image to convert.
      * @return A byte[] containing the pixels of the image.
-     * @deprecated Magic value
+     * @deprecated use color-related methods
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     @NotNull
     public static byte[] imageToBytes(@NotNull Image image) {
         BufferedImage temp = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB);
@@ -225,9 +225,9 @@ public final class MapPalette {
      * @param b The blue component of the color.
      * @param g The green component of the color.
      * @return The index in the palette.
-     * @deprecated Magic value
+     * @deprecated use color-related methods
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     public static byte matchColor(int r, int g, int b) {
         return matchColor(new Color(r, g, b));
     }
@@ -238,9 +238,9 @@ public final class MapPalette {
      *
      * @param color The Color to match.
      * @return The index in the palette.
-     * @deprecated Magic value
+     * @deprecated use color-related methods
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     public static byte matchColor(@NotNull Color color) {
         if (color.getAlpha() < 128) return 0;
 
@@ -268,9 +268,9 @@ public final class MapPalette {
      *
      * @param index The index in the palette.
      * @return The Color of the palette entry.
-     * @deprecated Magic value
+     * @deprecated use color directly
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     @NotNull
     public static Color getColor(byte index) {
         // Minecraft has 143 colors, some of which have negative byte representations
@@ -311,9 +311,9 @@ public final class MapPalette {
          * @param color The Color to match.
          * @return The index in the palette.
          * @throws IllegalStateException if {@link #isCached()} returns false
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         byte matchColor(@NotNull Color color);
     }
 }
diff --git a/src/main/java/org/bukkit/map/MapView.java b/src/main/java/org/bukkit/map/MapView.java
index 9b8b68b66dc15b06800251702c2722623c8462a0..e998c5d871e02564c24260a8205dcfafb6e703d9 100644
--- a/src/main/java/org/bukkit/map/MapView.java
+++ b/src/main/java/org/bukkit/map/MapView.java
@@ -32,9 +32,9 @@ public interface MapView {
          *
          * @param value The raw scale
          * @return The enum scale, or null for an invalid input
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         @Nullable
         public static Scale valueOf(byte value) {
             switch (value) {
@@ -51,9 +51,9 @@ public interface MapView {
          * Get the raw value of this scale level.
          *
          * @return The scale value
-         * @deprecated Magic value
+         * @apiNote Internal Use Only
          */
-        @Deprecated
+        @org.jetbrains.annotations.ApiStatus.Internal // Paper
         public byte getValue() {
             return value;
         }
diff --git a/src/main/java/org/bukkit/material/Banner.java b/src/main/java/org/bukkit/material/Banner.java
index 08ce9d8bc6dcd9beec5f75c1b7cd5d98e8c9e168..e1a87c09b90618aacaf728ebdc5a13e255200fef 100644
--- a/src/main/java/org/bukkit/material/Banner.java
+++ b/src/main/java/org/bukkit/material/Banner.java
@@ -7,7 +7,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Banner extends MaterialData implements Attachable {
 
     public Banner() {
diff --git a/src/main/java/org/bukkit/material/Bed.java b/src/main/java/org/bukkit/material/Bed.java
index c5256129e00a63d2699fbae213470ed7197c4571..54c89d319940a39b3439e3af09d87c21112a8486 100644
--- a/src/main/java/org/bukkit/material/Bed.java
+++ b/src/main/java/org/bukkit/material/Bed.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Bed extends MaterialData implements Directional {
 
     /**
diff --git a/src/main/java/org/bukkit/material/Button.java b/src/main/java/org/bukkit/material/Button.java
index da7d016cf118932c9cc9ddcfb4a2abd4b4356fb5..3c3d867911b6424d03094d3cc1056dd291825dce 100644
--- a/src/main/java/org/bukkit/material/Button.java
+++ b/src/main/java/org/bukkit/material/Button.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Button extends SimpleAttachableMaterialData implements Redstone {
     public Button() {
         super(Material.LEGACY_STONE_BUTTON);
diff --git a/src/main/java/org/bukkit/material/Cake.java b/src/main/java/org/bukkit/material/Cake.java
index d39dd491626cd84f83169cf5c2135d05516d77f2..f14ebe07bf898e54a7f0cbe740c02cf5e1851d41 100644
--- a/src/main/java/org/bukkit/material/Cake.java
+++ b/src/main/java/org/bukkit/material/Cake.java
@@ -6,7 +6,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Cake extends MaterialData {
     public Cake() {
         super(Material.LEGACY_CAKE_BLOCK);
diff --git a/src/main/java/org/bukkit/material/Cauldron.java b/src/main/java/org/bukkit/material/Cauldron.java
index b331b4c27e58d766dd1759062c9c198c348a58bb..d43caa8d64396a16d6e00cbf0d05cb291fa20c2e 100644
--- a/src/main/java/org/bukkit/material/Cauldron.java
+++ b/src/main/java/org/bukkit/material/Cauldron.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Cauldron extends MaterialData {
     private static final int CAULDRON_FULL = 3;
     private static final int CAULDRON_EMPTY = 0;
diff --git a/src/main/java/org/bukkit/material/Chest.java b/src/main/java/org/bukkit/material/Chest.java
index 4d120d3c33566606ff7d8b03c32341bf2ac147c4..89bb1a34d620d6c39901a315629bc8f43f3d3181 100644
--- a/src/main/java/org/bukkit/material/Chest.java
+++ b/src/main/java/org/bukkit/material/Chest.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Chest extends DirectionalContainer {
 
     public Chest() {
diff --git a/src/main/java/org/bukkit/material/Coal.java b/src/main/java/org/bukkit/material/Coal.java
index fb842cfa7bf29ca6c670fc98e7deecaab31c71f2..f6c61c9005046386c3e8f36b0144f1c9c83f7e9c 100644
--- a/src/main/java/org/bukkit/material/Coal.java
+++ b/src/main/java/org/bukkit/material/Coal.java
@@ -9,7 +9,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Coal extends MaterialData {
     public Coal() {
         super(Material.LEGACY_COAL);
diff --git a/src/main/java/org/bukkit/material/CocoaPlant.java b/src/main/java/org/bukkit/material/CocoaPlant.java
index b1b1c729d182b676d8ea69a8d3c942c6820863dd..f2baf516ea97de4ce55915cee0507f2c07e2f9d5 100644
--- a/src/main/java/org/bukkit/material/CocoaPlant.java
+++ b/src/main/java/org/bukkit/material/CocoaPlant.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class CocoaPlant extends MaterialData implements Directional, Attachable {
 
     public enum CocoaPlantSize {
diff --git a/src/main/java/org/bukkit/material/Command.java b/src/main/java/org/bukkit/material/Command.java
index bcac1b08294569b218722278568b7106e1ce48f3..e8ac121789e8f3b3fe8982a660ed702f5e3a36c7 100644
--- a/src/main/java/org/bukkit/material/Command.java
+++ b/src/main/java/org/bukkit/material/Command.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Command extends MaterialData implements Redstone {
     public Command() {
         super(Material.LEGACY_COMMAND);
diff --git a/src/main/java/org/bukkit/material/Comparator.java b/src/main/java/org/bukkit/material/Comparator.java
index 49d32d54438ad689bc7768342dc84d31e5f30285..7dcb7097119c0e170f29f04ff30d145966d78a1b 100644
--- a/src/main/java/org/bukkit/material/Comparator.java
+++ b/src/main/java/org/bukkit/material/Comparator.java
@@ -12,7 +12,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Comparator extends MaterialData implements Directional, Redstone {
     protected static final BlockFace DEFAULT_DIRECTION = BlockFace.NORTH;
     protected static final boolean DEFAULT_SUBTRACTION_MODE = false;
diff --git a/src/main/java/org/bukkit/material/Crops.java b/src/main/java/org/bukkit/material/Crops.java
index 4cf3de5fbba8617bc8edab9ca1c0ddee8033ed09..c73724d7b3ece146da6f7dd67167e7cd01fa3977 100644
--- a/src/main/java/org/bukkit/material/Crops.java
+++ b/src/main/java/org/bukkit/material/Crops.java
@@ -15,7 +15,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Crops extends MaterialData {
     protected static final Material DEFAULT_TYPE = Material.LEGACY_CROPS;
     protected static final CropState DEFAULT_STATE = CropState.SEEDED;
diff --git a/src/main/java/org/bukkit/material/DetectorRail.java b/src/main/java/org/bukkit/material/DetectorRail.java
index e8ab2904214f160c56aa01bc106d96f59042e706..6c7c021e654ab020d4a1638d2e9d8b438ea70fdd 100644
--- a/src/main/java/org/bukkit/material/DetectorRail.java
+++ b/src/main/java/org/bukkit/material/DetectorRail.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class DetectorRail extends ExtendedRails implements PressureSensor {
     public DetectorRail() {
         super(Material.LEGACY_DETECTOR_RAIL);
diff --git a/src/main/java/org/bukkit/material/Diode.java b/src/main/java/org/bukkit/material/Diode.java
index 36a62258bcdea8136672ef6b2313a3877b3c724c..490f345cfd2e9e0da151bc81f52c50b41c5933ca 100644
--- a/src/main/java/org/bukkit/material/Diode.java
+++ b/src/main/java/org/bukkit/material/Diode.java
@@ -13,7 +13,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Diode extends MaterialData implements Directional, Redstone {
 
     protected static final BlockFace DEFAULT_DIRECTION = BlockFace.NORTH;
diff --git a/src/main/java/org/bukkit/material/DirectionalContainer.java b/src/main/java/org/bukkit/material/DirectionalContainer.java
index 0190e5f3df5b86a0d8f912baf0570a4f54853829..6a8ec139c03a6dcdfcb8f55e5fac55f1c0c43156 100644
--- a/src/main/java/org/bukkit/material/DirectionalContainer.java
+++ b/src/main/java/org/bukkit/material/DirectionalContainer.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class DirectionalContainer extends MaterialData implements Directional {
 
     public DirectionalContainer(final Material type) {
diff --git a/src/main/java/org/bukkit/material/Dispenser.java b/src/main/java/org/bukkit/material/Dispenser.java
index b12993a93781bd8a3d218a0dd102e357996ee79e..49e56116f0b224033c25b797e9c28011bbd9cf8f 100644
--- a/src/main/java/org/bukkit/material/Dispenser.java
+++ b/src/main/java/org/bukkit/material/Dispenser.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Dispenser extends FurnaceAndDispenser {
 
     public Dispenser() {
diff --git a/src/main/java/org/bukkit/material/Door.java b/src/main/java/org/bukkit/material/Door.java
index d04ece5abab7a22abc4283d3043a52d4286d4103..48de4417c835db433e7a0884330b11a7afc39303 100644
--- a/src/main/java/org/bukkit/material/Door.java
+++ b/src/main/java/org/bukkit/material/Door.java
@@ -22,7 +22,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Door extends MaterialData implements Directional, Openable {
 
     // This class breaks API contracts on Directional and Openable because
diff --git a/src/main/java/org/bukkit/material/Dye.java b/src/main/java/org/bukkit/material/Dye.java
index f34f23da74013006ec453b539bb10751dcb3ecee..b2cc9c9173742c9f88bb78b0fb2e2138db95e80c 100644
--- a/src/main/java/org/bukkit/material/Dye.java
+++ b/src/main/java/org/bukkit/material/Dye.java
@@ -9,7 +9,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Dye extends MaterialData implements Colorable {
     public Dye() {
         super(Material.LEGACY_INK_SACK);
diff --git a/src/main/java/org/bukkit/material/EnderChest.java b/src/main/java/org/bukkit/material/EnderChest.java
index ad232cacd94230fbcabb894cf35d540aff1d8662..f621a3ba0056db8a1b5b734252aad676214b4128 100644
--- a/src/main/java/org/bukkit/material/EnderChest.java
+++ b/src/main/java/org/bukkit/material/EnderChest.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class EnderChest extends DirectionalContainer {
 
     public EnderChest() {
diff --git a/src/main/java/org/bukkit/material/ExtendedRails.java b/src/main/java/org/bukkit/material/ExtendedRails.java
index 9b2577f7b5bab678d9e491323772ce616181ade3..fcea4a5169d1535b0696783fa73c05494702770d 100644
--- a/src/main/java/org/bukkit/material/ExtendedRails.java
+++ b/src/main/java/org/bukkit/material/ExtendedRails.java
@@ -10,7 +10,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class ExtendedRails extends Rails {
 
     public ExtendedRails(final Material type) {
diff --git a/src/main/java/org/bukkit/material/FlowerPot.java b/src/main/java/org/bukkit/material/FlowerPot.java
index 6101e33288dded9ce871fe6c6f0b36c895d7214a..8fe99e15203cca6ed6b238ec3a7b57670940fbfb 100644
--- a/src/main/java/org/bukkit/material/FlowerPot.java
+++ b/src/main/java/org/bukkit/material/FlowerPot.java
@@ -10,7 +10,7 @@ import org.bukkit.TreeSpecies;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class FlowerPot extends MaterialData {
 
     /**
diff --git a/src/main/java/org/bukkit/material/Furnace.java b/src/main/java/org/bukkit/material/Furnace.java
index 380f7f4b1f3adaa59c3202db02221abec2678fd7..338b37fbbbb165399cfd45ed109bd18cdf5a14b9 100644
--- a/src/main/java/org/bukkit/material/Furnace.java
+++ b/src/main/java/org/bukkit/material/Furnace.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Furnace extends FurnaceAndDispenser {
 
     public Furnace() {
diff --git a/src/main/java/org/bukkit/material/FurnaceAndDispenser.java b/src/main/java/org/bukkit/material/FurnaceAndDispenser.java
index effa0d8a95ccbd58aa2b85a27cfccb4787e71422..e627c8ff419086a3bae221c65eeb2ec9453ab075 100644
--- a/src/main/java/org/bukkit/material/FurnaceAndDispenser.java
+++ b/src/main/java/org/bukkit/material/FurnaceAndDispenser.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class FurnaceAndDispenser extends DirectionalContainer {
 
     public FurnaceAndDispenser(final Material type) {
diff --git a/src/main/java/org/bukkit/material/Gate.java b/src/main/java/org/bukkit/material/Gate.java
index fc67fc59a75410f7aa70609ebc9538bfdecdd403..52d468ae5b21ea00b20314731ca26542d64e455b 100644
--- a/src/main/java/org/bukkit/material/Gate.java
+++ b/src/main/java/org/bukkit/material/Gate.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Gate extends MaterialData implements Directional, Openable {
     private static final byte OPEN_BIT = 0x4;
     private static final byte DIR_BIT = 0x3;
diff --git a/src/main/java/org/bukkit/material/Hopper.java b/src/main/java/org/bukkit/material/Hopper.java
index cfd32666c274383204dee9f9734ffb06184d2aaa..9983f53d05b5edc7a6bb54eaf65733639ccfa883 100644
--- a/src/main/java/org/bukkit/material/Hopper.java
+++ b/src/main/java/org/bukkit/material/Hopper.java
@@ -12,7 +12,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Hopper extends MaterialData implements Directional, Redstone {
 
     protected static final BlockFace DEFAULT_DIRECTION = BlockFace.DOWN;
diff --git a/src/main/java/org/bukkit/material/Ladder.java b/src/main/java/org/bukkit/material/Ladder.java
index de263530823aa8c1ae8b4a9bd2497d7239156384..dcccad5a6a517fb5e2409363751e9f94fdc24241 100644
--- a/src/main/java/org/bukkit/material/Ladder.java
+++ b/src/main/java/org/bukkit/material/Ladder.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Ladder extends SimpleAttachableMaterialData {
     public Ladder() {
         super(Material.LEGACY_LADDER);
diff --git a/src/main/java/org/bukkit/material/Leaves.java b/src/main/java/org/bukkit/material/Leaves.java
index 923a794ac1d2f43b680165dfddb4119faf5ecdd1..75c52aeb4fc01dfc83a3985249d4d577d3aec578 100644
--- a/src/main/java/org/bukkit/material/Leaves.java
+++ b/src/main/java/org/bukkit/material/Leaves.java
@@ -13,7 +13,7 @@ import org.bukkit.TreeSpecies;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Leaves extends Wood {
     protected static final Material DEFAULT_TYPE = Material.LEGACY_LEAVES;
     protected static final boolean DEFAULT_DECAYABLE = true;
diff --git a/src/main/java/org/bukkit/material/Lever.java b/src/main/java/org/bukkit/material/Lever.java
index 09f290f8898914b77f89c1546f285a6e6212499e..9ed20612235775c6e6f93b1cea5d2b7e73c2aa83 100644
--- a/src/main/java/org/bukkit/material/Lever.java
+++ b/src/main/java/org/bukkit/material/Lever.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Lever extends SimpleAttachableMaterialData implements Redstone {
     public Lever() {
         super(Material.LEGACY_LEVER);
diff --git a/src/main/java/org/bukkit/material/LongGrass.java b/src/main/java/org/bukkit/material/LongGrass.java
index 497857ec37482ff477eab77d680b2a1bec52ea14..1c683ad7c4c72671e74c5d2d4b5f872adc9f9021 100644
--- a/src/main/java/org/bukkit/material/LongGrass.java
+++ b/src/main/java/org/bukkit/material/LongGrass.java
@@ -9,7 +9,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class LongGrass extends MaterialData {
     public LongGrass() {
         super(Material.LEGACY_LONG_GRASS);
diff --git a/src/main/java/org/bukkit/material/MaterialData.java b/src/main/java/org/bukkit/material/MaterialData.java
index ccaddb87922b3afe22a350a3e5e5e7af86b2f398..b2b04456590b86a755b392a1ab4d88fa49f2b2bb 100644
--- a/src/main/java/org/bukkit/material/MaterialData.java
+++ b/src/main/java/org/bukkit/material/MaterialData.java
@@ -9,7 +9,7 @@ import org.bukkit.inventory.ItemStack;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class MaterialData implements Cloneable {
     private final Material type;
     private byte data = 0;
diff --git a/src/main/java/org/bukkit/material/MonsterEggs.java b/src/main/java/org/bukkit/material/MonsterEggs.java
index 2fac218f1e237d4b867c1e6215fe40151dcceaf0..4f450808ead1464b8cb7192bfaa8005ccb5e3d0c 100644
--- a/src/main/java/org/bukkit/material/MonsterEggs.java
+++ b/src/main/java/org/bukkit/material/MonsterEggs.java
@@ -10,7 +10,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class MonsterEggs extends TexturedMaterial {
 
     private static final List<Material> textures = new ArrayList<Material>();
diff --git a/src/main/java/org/bukkit/material/Mushroom.java b/src/main/java/org/bukkit/material/Mushroom.java
index 8927b307adcc3c98aa96caea38ea2eb9338e284e..e219d29fde408d464015f51dc64b93a929e48320 100644
--- a/src/main/java/org/bukkit/material/Mushroom.java
+++ b/src/main/java/org/bukkit/material/Mushroom.java
@@ -17,7 +17,7 @@ import org.bukkit.material.types.MushroomBlockTexture;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Mushroom extends MaterialData {
     private static final byte NORTH_LIMIT = 4;
     private static final byte SOUTH_LIMIT = 6;
diff --git a/src/main/java/org/bukkit/material/NetherWarts.java b/src/main/java/org/bukkit/material/NetherWarts.java
index 1fed8b937a68bfd12d04e04b962e1627c36a074f..3d437cc6b35dbef4819b05326b86dfc926655a2a 100644
--- a/src/main/java/org/bukkit/material/NetherWarts.java
+++ b/src/main/java/org/bukkit/material/NetherWarts.java
@@ -9,7 +9,7 @@ import org.bukkit.NetherWartsState;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class NetherWarts extends MaterialData {
     public NetherWarts() {
         super(Material.LEGACY_NETHER_WARTS);
diff --git a/src/main/java/org/bukkit/material/Observer.java b/src/main/java/org/bukkit/material/Observer.java
index 843790b331e1ed1db9e46716251851b0782497c1..079b0569332102e3f5c427a5c97c01cb1a609e6c 100644
--- a/src/main/java/org/bukkit/material/Observer.java
+++ b/src/main/java/org/bukkit/material/Observer.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Observer extends MaterialData implements Directional, Redstone {
 
     public Observer() {
diff --git a/src/main/java/org/bukkit/material/Openable.java b/src/main/java/org/bukkit/material/Openable.java
index 0ae54f973d11df74abb3105cf9226afb130b4f33..df2c2a774155d79ccf6fa7f366fe011ae4a43b90 100644
--- a/src/main/java/org/bukkit/material/Openable.java
+++ b/src/main/java/org/bukkit/material/Openable.java
@@ -1,5 +1,6 @@
 package org.bukkit.material;
 
+@Deprecated(forRemoval = true, since = "1.13")
 public interface Openable {
 
     /**
diff --git a/src/main/java/org/bukkit/material/PistonBaseMaterial.java b/src/main/java/org/bukkit/material/PistonBaseMaterial.java
index 8165e94339097ac5cf8e27ebc60256c8fefd7d63..e7d05b6873c11f531cbea167ee006942bbc2249b 100644
--- a/src/main/java/org/bukkit/material/PistonBaseMaterial.java
+++ b/src/main/java/org/bukkit/material/PistonBaseMaterial.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class PistonBaseMaterial extends MaterialData implements Directional, Redstone {
 
     public PistonBaseMaterial(final Material type) {
diff --git a/src/main/java/org/bukkit/material/PistonExtensionMaterial.java b/src/main/java/org/bukkit/material/PistonExtensionMaterial.java
index e7cfc7158b5d31376ddb8f5415e22e76c6d62f10..9ab0b57a492a6d503ad72d41f3a52b358d73361a 100644
--- a/src/main/java/org/bukkit/material/PistonExtensionMaterial.java
+++ b/src/main/java/org/bukkit/material/PistonExtensionMaterial.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class PistonExtensionMaterial extends MaterialData implements Attachable {
 
     public PistonExtensionMaterial(final Material type) {
diff --git a/src/main/java/org/bukkit/material/PoweredRail.java b/src/main/java/org/bukkit/material/PoweredRail.java
index feebc5c7359098d41abcccb1f1d8afe2a54a9130..27c8974c8fe68af51960dbad91dd424c9c3bfd17 100644
--- a/src/main/java/org/bukkit/material/PoweredRail.java
+++ b/src/main/java/org/bukkit/material/PoweredRail.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class PoweredRail extends ExtendedRails implements Redstone {
     public PoweredRail() {
         super(Material.LEGACY_POWERED_RAIL);
diff --git a/src/main/java/org/bukkit/material/PressurePlate.java b/src/main/java/org/bukkit/material/PressurePlate.java
index ffababbc1b1ef1f19e941beb6412457b839e92eb..0d7f0a7d0001ebbf9920e8d2f82786c5dae6d2e8 100644
--- a/src/main/java/org/bukkit/material/PressurePlate.java
+++ b/src/main/java/org/bukkit/material/PressurePlate.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class PressurePlate extends MaterialData implements PressureSensor {
     public PressurePlate() {
         super(Material.LEGACY_WOOD_PLATE);
diff --git a/src/main/java/org/bukkit/material/Pumpkin.java b/src/main/java/org/bukkit/material/Pumpkin.java
index 7c1b5eea0aba649bc9ed6b05836609e7cda314c0..c9241e64ade6e2aac739159c088aa3bee6bdd219 100644
--- a/src/main/java/org/bukkit/material/Pumpkin.java
+++ b/src/main/java/org/bukkit/material/Pumpkin.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Pumpkin extends MaterialData implements Directional {
 
     public Pumpkin() {
diff --git a/src/main/java/org/bukkit/material/Rails.java b/src/main/java/org/bukkit/material/Rails.java
index 0b041ee66c38cb884a0d69d1cc17df3fe25f7533..de12e71214ed22e40925a1b65260694c80321ff0 100644
--- a/src/main/java/org/bukkit/material/Rails.java
+++ b/src/main/java/org/bukkit/material/Rails.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Rails extends MaterialData {
 
     public Rails() {
diff --git a/src/main/java/org/bukkit/material/Redstone.java b/src/main/java/org/bukkit/material/Redstone.java
index 3e46603f8cd38041394e0e1baf788d9009b3ffc7..eb621f34d0461c9bfe1bd7535344b6778e7b39c5 100644
--- a/src/main/java/org/bukkit/material/Redstone.java
+++ b/src/main/java/org/bukkit/material/Redstone.java
@@ -3,6 +3,7 @@ package org.bukkit.material;
 /**
  * Indicated a Material that may carry or create a Redstone current
  */
+@Deprecated(forRemoval = true, since = "1.13")
 public interface Redstone {
 
     /**
diff --git a/src/main/java/org/bukkit/material/RedstoneTorch.java b/src/main/java/org/bukkit/material/RedstoneTorch.java
index 40956914366195f8a658952923ea7e92235dc4a8..b46b2dde7cd74abd8e05a5222856efdf551ec2ad 100644
--- a/src/main/java/org/bukkit/material/RedstoneTorch.java
+++ b/src/main/java/org/bukkit/material/RedstoneTorch.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class RedstoneTorch extends Torch implements Redstone {
     public RedstoneTorch() {
         super(Material.LEGACY_REDSTONE_TORCH_ON);
diff --git a/src/main/java/org/bukkit/material/RedstoneWire.java b/src/main/java/org/bukkit/material/RedstoneWire.java
index 8877ef48eb8de20b220d40c8068e5da2566d6109..b21be01e753fa16159161ebfea46586ca3895313 100644
--- a/src/main/java/org/bukkit/material/RedstoneWire.java
+++ b/src/main/java/org/bukkit/material/RedstoneWire.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class RedstoneWire extends MaterialData implements Redstone {
     public RedstoneWire() {
         super(Material.LEGACY_REDSTONE_WIRE);
diff --git a/src/main/java/org/bukkit/material/Sandstone.java b/src/main/java/org/bukkit/material/Sandstone.java
index 8d8673edcd19d03077e7d53388c3ba2e9d80a618..8c52df074acdf51957502782615786d3bb2752ed 100644
--- a/src/main/java/org/bukkit/material/Sandstone.java
+++ b/src/main/java/org/bukkit/material/Sandstone.java
@@ -9,7 +9,7 @@ import org.bukkit.SandstoneType;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Sandstone extends MaterialData {
     public Sandstone() {
         super(Material.LEGACY_SANDSTONE);
diff --git a/src/main/java/org/bukkit/material/Sapling.java b/src/main/java/org/bukkit/material/Sapling.java
index c615a0022256887022ba7f347c19005478c35691..93d1bcac74ea8c4159462786865b6512713d5d91 100644
--- a/src/main/java/org/bukkit/material/Sapling.java
+++ b/src/main/java/org/bukkit/material/Sapling.java
@@ -11,7 +11,7 @@ import org.bukkit.TreeSpecies;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Sapling extends Wood {
 
     /**
diff --git a/src/main/java/org/bukkit/material/Sign.java b/src/main/java/org/bukkit/material/Sign.java
index 3b32679b4a670aaaaeb0481265d189a3bb99bdca..d96002acf89e67c6eb29d1d572192d461bb072b3 100644
--- a/src/main/java/org/bukkit/material/Sign.java
+++ b/src/main/java/org/bukkit/material/Sign.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Sign extends MaterialData implements Attachable {
     public Sign() {
         super(Material.LEGACY_SIGN_POST);
diff --git a/src/main/java/org/bukkit/material/SimpleAttachableMaterialData.java b/src/main/java/org/bukkit/material/SimpleAttachableMaterialData.java
index 6267d81ba2e9dde3f8a1063df66940086b4f5fce..2d1b640a8ff5d4492408f64e6b01af9ab0ce839e 100644
--- a/src/main/java/org/bukkit/material/SimpleAttachableMaterialData.java
+++ b/src/main/java/org/bukkit/material/SimpleAttachableMaterialData.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public abstract class SimpleAttachableMaterialData extends MaterialData implements Attachable {
 
     public SimpleAttachableMaterialData(Material type, BlockFace direction) {
diff --git a/src/main/java/org/bukkit/material/Skull.java b/src/main/java/org/bukkit/material/Skull.java
index a73ad62468a9589f78e270a82cd9ac8ff1b240b2..bebe06be7279ce1c14c8c81ee58202f2ca3c3e20 100644
--- a/src/main/java/org/bukkit/material/Skull.java
+++ b/src/main/java/org/bukkit/material/Skull.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Skull extends MaterialData implements Directional {
     public Skull() {
         super(Material.LEGACY_SKULL);
diff --git a/src/main/java/org/bukkit/material/SmoothBrick.java b/src/main/java/org/bukkit/material/SmoothBrick.java
index e4812b7cef9847745d147aad87181c4eb903f5df..171771ab8d3a0b095ed74c4da608a61769f6a2f1 100644
--- a/src/main/java/org/bukkit/material/SmoothBrick.java
+++ b/src/main/java/org/bukkit/material/SmoothBrick.java
@@ -10,7 +10,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class SmoothBrick extends TexturedMaterial {
 
     private static final List<Material> textures = new ArrayList<Material>();
diff --git a/src/main/java/org/bukkit/material/SpawnEgg.java b/src/main/java/org/bukkit/material/SpawnEgg.java
index a177021d259110ebf0c26e5a19cea5d9f6f3a8a8..f14a918b41d61869bc3b4a644011f4d2260c19ae 100644
--- a/src/main/java/org/bukkit/material/SpawnEgg.java
+++ b/src/main/java/org/bukkit/material/SpawnEgg.java
@@ -8,7 +8,7 @@ import org.bukkit.inventory.meta.SpawnEggMeta;
  * Represents a spawn egg that can be used to spawn mobs
  * @deprecated use {@link SpawnEggMeta}
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class SpawnEgg extends MaterialData {
 
     public SpawnEgg() {
diff --git a/src/main/java/org/bukkit/material/Stairs.java b/src/main/java/org/bukkit/material/Stairs.java
index e5db60bd0d5c0d4990d418cf89415274c7698a9d..e7fe9cec387e2c86549cfad086839a241840582d 100644
--- a/src/main/java/org/bukkit/material/Stairs.java
+++ b/src/main/java/org/bukkit/material/Stairs.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Stairs extends MaterialData implements Directional {
 
     public Stairs(final Material type) {
diff --git a/src/main/java/org/bukkit/material/Step.java b/src/main/java/org/bukkit/material/Step.java
index ea94222120ddd4e692b67cf48b029af9ed0e5835..b7417693ff9efc5d6fc9d1899b0bb03c9664f903 100644
--- a/src/main/java/org/bukkit/material/Step.java
+++ b/src/main/java/org/bukkit/material/Step.java
@@ -10,7 +10,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Step extends TexturedMaterial {
     private static final List<Material> textures = new ArrayList<Material>();
     static {
diff --git a/src/main/java/org/bukkit/material/TexturedMaterial.java b/src/main/java/org/bukkit/material/TexturedMaterial.java
index 6e0a834794453eff7b3efc93e90c9bf49ef7c688..fcac4e6aafd906c14683f0ab0843a7b9ca4d62c7 100644
--- a/src/main/java/org/bukkit/material/TexturedMaterial.java
+++ b/src/main/java/org/bukkit/material/TexturedMaterial.java
@@ -9,7 +9,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public abstract class TexturedMaterial extends MaterialData {
 
     public TexturedMaterial(Material m) {
diff --git a/src/main/java/org/bukkit/material/Torch.java b/src/main/java/org/bukkit/material/Torch.java
index a4f0c62dcd39f94a68bca8cc76311847118d9ad1..2dafb1bb9779cc25471b5dfc0176a81014e8c840 100644
--- a/src/main/java/org/bukkit/material/Torch.java
+++ b/src/main/java/org/bukkit/material/Torch.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Torch extends SimpleAttachableMaterialData {
     public Torch() {
         super(Material.LEGACY_TORCH);
diff --git a/src/main/java/org/bukkit/material/TrapDoor.java b/src/main/java/org/bukkit/material/TrapDoor.java
index effedfc714d67254428b548bba74264cdba4ba15..ed8035f3f45d07a08346efeebf206bcfdb083bc6 100644
--- a/src/main/java/org/bukkit/material/TrapDoor.java
+++ b/src/main/java/org/bukkit/material/TrapDoor.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class TrapDoor extends SimpleAttachableMaterialData implements Openable {
     public TrapDoor() {
         super(Material.LEGACY_TRAP_DOOR);
diff --git a/src/main/java/org/bukkit/material/Tree.java b/src/main/java/org/bukkit/material/Tree.java
index e759f50339903ab10f50bebe56bab5cfe8d9f7e0..4f79b8ac23e4851da9ed41858eafaffa39efb59a 100644
--- a/src/main/java/org/bukkit/material/Tree.java
+++ b/src/main/java/org/bukkit/material/Tree.java
@@ -13,7 +13,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Tree extends Wood {
     protected static final Material DEFAULT_TYPE = Material.LEGACY_LOG;
     protected static final BlockFace DEFAULT_DIRECTION = BlockFace.UP;
diff --git a/src/main/java/org/bukkit/material/Tripwire.java b/src/main/java/org/bukkit/material/Tripwire.java
index e5ffa4db87b435df8c04f1b43521fda6493fd43d..eb667f22b7a143d695cf78219986230c57ab229f 100644
--- a/src/main/java/org/bukkit/material/Tripwire.java
+++ b/src/main/java/org/bukkit/material/Tripwire.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Tripwire extends MaterialData {
 
     public Tripwire() {
diff --git a/src/main/java/org/bukkit/material/TripwireHook.java b/src/main/java/org/bukkit/material/TripwireHook.java
index 80aa1c7bc7a1ef71b51101b154361feff4dcf88e..8a19008272897fa32b0b30504545a9873b82a54c 100644
--- a/src/main/java/org/bukkit/material/TripwireHook.java
+++ b/src/main/java/org/bukkit/material/TripwireHook.java
@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class TripwireHook extends SimpleAttachableMaterialData implements Redstone {
 
     public TripwireHook() {
diff --git a/src/main/java/org/bukkit/material/Vine.java b/src/main/java/org/bukkit/material/Vine.java
index 07a4f3b1511e274affe751aad2b9020b49df815f..574b09896f25e42e20c8953e9668cc4edae31348 100644
--- a/src/main/java/org/bukkit/material/Vine.java
+++ b/src/main/java/org/bukkit/material/Vine.java
@@ -11,7 +11,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Vine extends MaterialData {
     private static final int VINE_NORTH = 0x4;
     private static final int VINE_EAST = 0x8;
diff --git a/src/main/java/org/bukkit/material/Wood.java b/src/main/java/org/bukkit/material/Wood.java
index 5d51c9286dbf71ff4bb8717d5e83431b1815770e..2d4556ce2367395d42d622d94f073de9ae4e4a36 100644
--- a/src/main/java/org/bukkit/material/Wood.java
+++ b/src/main/java/org/bukkit/material/Wood.java
@@ -13,7 +13,7 @@ import org.bukkit.TreeSpecies;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Wood extends MaterialData {
     protected static final Material DEFAULT_TYPE = Material.LEGACY_WOOD;
     protected static final TreeSpecies DEFAULT_SPECIES = TreeSpecies.GENERIC;
diff --git a/src/main/java/org/bukkit/material/WoodenStep.java b/src/main/java/org/bukkit/material/WoodenStep.java
index b99a9a304d1c14c187ad2721424d5e5caed90973..827bcd7284919a7f7a71a3ea53c2c67bbbca378b 100644
--- a/src/main/java/org/bukkit/material/WoodenStep.java
+++ b/src/main/java/org/bukkit/material/WoodenStep.java
@@ -11,7 +11,7 @@ import org.bukkit.TreeSpecies;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class WoodenStep extends Wood {
     protected static final Material DEFAULT_TYPE = Material.LEGACY_WOOD_STEP;
     protected static final boolean DEFAULT_INVERTED = false;
diff --git a/src/main/java/org/bukkit/material/Wool.java b/src/main/java/org/bukkit/material/Wool.java
index 3b17409a98b53538989a8d2d5ad1b80643befeab..c5b32246f9d777d5b02f27ca616bdf8323a14ccd 100644
--- a/src/main/java/org/bukkit/material/Wool.java
+++ b/src/main/java/org/bukkit/material/Wool.java
@@ -8,7 +8,7 @@ import org.bukkit.Material;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(forRemoval = true, since = "1.13")
 public class Wool extends MaterialData implements Colorable {
     public Wool() {
         super(Material.LEGACY_WOOL);
diff --git a/src/main/java/org/bukkit/material/types/MushroomBlockTexture.java b/src/main/java/org/bukkit/material/types/MushroomBlockTexture.java
index 0ea9c6b2420a0f990bd1fdf50fc015e37a7060d8..e99644eae1c662b117aa19060d2484aca19fe0a4 100644
--- a/src/main/java/org/bukkit/material/types/MushroomBlockTexture.java
+++ b/src/main/java/org/bukkit/material/types/MushroomBlockTexture.java
@@ -7,7 +7,9 @@ import org.jetbrains.annotations.Nullable;
 
 /**
  * Represents the different textured blocks of mushroom.
+ * @deprecated use BlockData
  */
+@Deprecated // Paper
 public enum MushroomBlockTexture {
 
     /**
diff --git a/src/main/java/org/bukkit/potion/PotionEffectType.java b/src/main/java/org/bukkit/potion/PotionEffectType.java
index bd9ea2fe16b81f5ef5e83427e49c898db69cd4dc..e2d1d26b9debbe1ef852f0260180200a916a7db7 100644
--- a/src/main/java/org/bukkit/potion/PotionEffectType.java
+++ b/src/main/java/org/bukkit/potion/PotionEffectType.java
@@ -278,9 +278,9 @@ public abstract class PotionEffectType implements Keyed, Translatable {
      * Returns the unique ID of this type.
      *
      * @return Unique ID
-     * @deprecated Magic value
+     * @deprecated use {@link #key()}
      */
-    @Deprecated
+    @Deprecated(forRemoval = true, since = "1.20.2") // Paper
     public abstract int getId();
 
     /**
@@ -316,9 +316,9 @@ public abstract class PotionEffectType implements Keyed, Translatable {
      *
      * @param id Unique ID to fetch
      * @return Resulting type, or null if not found.
-     * @deprecated Magic value
+     * @apiNote Internal Use Only
      */
-    @Deprecated
+    @org.jetbrains.annotations.ApiStatus.Internal // Paper
     @Nullable
     public static PotionEffectType getById(int id) {
         PotionEffectType type = ID_MAP.get(id);
diff --git a/src/test/java/org/bukkit/materials/MaterialDataTest.java b/src/test/java/org/bukkit/materials/MaterialDataTest.java
index 8d78435cc42a9e668b2d4d674b79b4094c3bd1b1..24a8ce4387b897c717b55405f363ffafff45894d 100644
--- a/src/test/java/org/bukkit/materials/MaterialDataTest.java
+++ b/src/test/java/org/bukkit/materials/MaterialDataTest.java
@@ -22,6 +22,7 @@ import org.bukkit.material.WoodenStep;
 import org.bukkit.material.types.MushroomBlockTexture;
 import org.junit.jupiter.api.Test;
 
+@Deprecated // Paper
 public class MaterialDataTest {
 
     @Test