Swap some nullable annotations (#10960)

patches/api/0108-EntityShootBowEvent-consumeArrow-and-getArrowItem-AP.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] EntityShootBowEvent consumeArrow and getArrowItem API
 Adds ability to get what arrow was shot, and control if it should be consumed.
 
 diff --git a/src/main/java/org/bukkit/event/entity/EntityShootBowEvent.java b/src/main/java/org/bukkit/event/entity/EntityShootBowEvent.java
-index 1a8366f6757431baaba4f3d48abea3cf0ec1f1ad..1cde639c5dc7e746209488b1a58c2a81080ab3d7 100644
+index 1a8366f6757431baaba4f3d48abea3cf0ec1f1ad..e4efcd757ca51a4edd396f55c812dbe89ffb68c7 100644
 --- a/src/main/java/org/bukkit/event/entity/EntityShootBowEvent.java
 +++ b/src/main/java/org/bukkit/event/entity/EntityShootBowEvent.java
 @@ -22,7 +22,32 @@ public class EntityShootBowEvent extends EntityEvent implements Cancellable {
@@ -24,7 +24,7 @@ index 1a8366f6757431baaba4f3d48abea3cf0ec1f1ad..1cde639c5dc7e746209488b1a58c2a81
 +        return this.shouldConsumeItem();
 +    }
 +
-+    @NotNull @Deprecated
++    @Nullable @Deprecated
 +    public ItemStack getArrowItem() {
 +        return this.getConsumable();
 +    }

patches/api/0153-Add-more-Witch-API.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Add more Witch API
 
 
 diff --git a/src/main/java/org/bukkit/entity/Witch.java b/src/main/java/org/bukkit/entity/Witch.java
-index 6618f2129e108c0a6cd15f6d0e86426021b6ff0d..4badeafe2f20cb123ef95897c90d5e61251cc40f 100644
+index 6618f2129e108c0a6cd15f6d0e86426021b6ff0d..e833250798e1811bd922c2335a113bf3468ec8a5 100644
 --- a/src/main/java/org/bukkit/entity/Witch.java
 +++ b/src/main/java/org/bukkit/entity/Witch.java
 @@ -2,6 +2,11 @@ package org.bukkit.entity;
@@ -20,7 +20,7 @@ index 6618f2129e108c0a6cd15f6d0e86426021b6ff0d..4badeafe2f20cb123ef95897c90d5e61
  /**
   * Represents a Witch
   */
-@@ -13,4 +18,37 @@ public interface Witch extends Raider, RangedEntity { // Paper
+@@ -13,4 +18,38 @@ public interface Witch extends Raider, RangedEntity { // Paper
       * @return whether the witch is drinking a potion
       */
      boolean isDrinkingPotion();
@@ -48,7 +48,8 @@ index 6618f2129e108c0a6cd15f6d0e86426021b6ff0d..4badeafe2f20cb123ef95897c90d5e61
 +     *
 +     * @return The potion the witch is drinking
 +     */
-+    @Nullable ItemStack getDrinkingPotion();
++    @org.jetbrains.annotations.NotNull
++    ItemStack getDrinkingPotion();
 +
 +    /**
 +     * Set the potion the Witch should drink

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

@@ -795,6 +795,19 @@ index 4047f026ab796eca7ad2d6718e1436f251c08e93..d248069adfc67eb840951f7ab4a1fa5d
      @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
@@ -885,6 +898,19 @@ index 95c79c5fa0c4e30201f887da6467ce5f81c8a255..7f9c4d4b430a3f0276461346ff2621ba
 +    @Deprecated // Paper
      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 dc9829ab0f4efcf9534f1b2d4a2e48ea49e8d372..e65f4f0df2e6832cf089572822c96ecc7a83dab3 100644
@@ -939,6 +965,29 @@ index 9cb08fe7201a9f91e88c7b1ee22c17889a7bf1c3..c0fcfccdf476106b48e626a099658c04
 -@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

patches/api/0188-Add-villager-reputation-API.patch

@@ -110,7 +110,7 @@ index 0000000000000000000000000000000000000000..5600fcdc9795a9f49091db48d73bbd49
 +    TRADING,
 +}
 diff --git a/src/main/java/org/bukkit/entity/Villager.java b/src/main/java/org/bukkit/entity/Villager.java
-index 4128b848ec739308694d54d9e859c28185f42a63..d841d94d46462e0ceb7c6b04cc8fc36792bd9201 100644
+index 4128b848ec739308694d54d9e859c28185f42a63..49db82ceff5e2c5f6414045648d68bd384c857c8 100644
 --- a/src/main/java/org/bukkit/entity/Villager.java
 +++ b/src/main/java/org/bukkit/entity/Villager.java
 @@ -1,6 +1,8 @@
@@ -135,7 +135,7 @@ index 4128b848ec739308694d54d9e859c28185f42a63..d841d94d46462e0ceb7c6b04cc8fc367
 +     * @param uniqueId The {@link UUID} of the player to get the reputation of.
 +     * @return The player's copied reputation with this villager.
 +     */
-+    @Nullable
++    @NotNull
 +    public com.destroystokyo.paper.entity.villager.Reputation getReputation(@NotNull UUID uniqueId);
 +
 +    /**

patches/api/0202-Add-methods-to-get-translation-keys.patch

@@ -420,7 +420,7 @@ index d248069adfc67eb840951f7ab4a1fa5d30214dec..976f701ed9b9873945a5628173c580e2
       * Gets if this EntityType is enabled by feature in a world.
       *
 diff --git a/src/main/java/org/bukkit/entity/Villager.java b/src/main/java/org/bukkit/entity/Villager.java
-index d841d94d46462e0ceb7c6b04cc8fc36792bd9201..8c8176121cafed0ed09239b6a7b392dc846438e2 100644
+index 49db82ceff5e2c5f6414045648d68bd384c857c8..b3957b3ff64f35fdeb2daa2ed1fb34fd65e24693 100644
 --- a/src/main/java/org/bukkit/entity/Villager.java
 +++ b/src/main/java/org/bukkit/entity/Villager.java
 @@ -160,7 +160,7 @@ public interface Villager extends AbstractVillager {

patches/api/0287-Missing-Entity-API.patch

@@ -1416,7 +1416,7 @@ index 87a814f63c3f35be35bfa210c9248ad211c0dd8f..14543c2238b45c526dd9aebea2aa5c22
 +    // Paper end
  }
 diff --git a/src/main/java/org/bukkit/entity/ZombieVillager.java b/src/main/java/org/bukkit/entity/ZombieVillager.java
-index 7cc1d9a966454af70b7c25735fe474fe3eb97eb4..ac6fd8ca95771c185c145f4589ddd5b2a6e8c2da 100644
+index e38f38ebfc6e85f29b09c4bb3e2ea79639078ad0..e647c6b933be8234c6ef8726724a7e1198f24f31 100644
 --- a/src/main/java/org/bukkit/entity/ZombieVillager.java
 +++ b/src/main/java/org/bukkit/entity/ZombieVillager.java
 @@ -90,4 +90,22 @@ public interface ZombieVillager extends Zombie {

patches/api/0374-More-vanilla-friendly-methods-to-update-trades.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] More vanilla friendly methods to update trades
 
 
 diff --git a/src/main/java/org/bukkit/entity/Villager.java b/src/main/java/org/bukkit/entity/Villager.java
-index 8c8176121cafed0ed09239b6a7b392dc846438e2..3bc24457d143449e6a338d79becf7c39b9f81054 100644
+index b3957b3ff64f35fdeb2daa2ed1fb34fd65e24693..48c8af31b2bdc849b5269784ff3829ba31fb3f47 100644
 --- a/src/main/java/org/bukkit/entity/Villager.java
 +++ b/src/main/java/org/bukkit/entity/Villager.java
 @@ -60,8 +60,11 @@ public interface Villager extends AbstractVillager {

patches/api/0431-Experimental-annotations-change.patch

@@ -137,7 +137,7 @@ index 06ca3dc4b0b69cbaefa96464dce484cea93e0717..748e58eb93c7882e15d9cbdd56d11bb1
  
  }
 diff --git a/src/main/java/org/bukkit/entity/OminousItemSpawner.java b/src/main/java/org/bukkit/entity/OminousItemSpawner.java
-index 60522888bc320ba0a55655532e19185fac816bd1..764e058c37eeedaff617c2672b8c446d2a1d6848 100644
+index 4aa07d4edb2c81d0ae7999b30ad53ff8bb884ec7..dbd4da4c63b6b1b21c3e638ac4d2c9fdd6716a8e 100644
 --- a/src/main/java/org/bukkit/entity/OminousItemSpawner.java
 +++ b/src/main/java/org/bukkit/entity/OminousItemSpawner.java
 @@ -7,7 +7,6 @@ import org.jetbrains.annotations.Nullable;

patches/server/0562-Missing-Entity-API.patch

@@ -1009,10 +1009,10 @@ index 5467e4a74b70ff57b49d9e6bc686c493178f8511..01d104d91de9e1319d27e39d3f474318
      public boolean isRolling() {
          return this.getHandle().isRolling();
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java
-index 9304e201db1ec96d0916aa8ea781f3e4bc7991e6..8338effd39b1709dbe578e247710a8e58d83e3aa 100644
+index 9304e201db1ec96d0916aa8ea781f3e4bc7991e6..83e77c6d287d8e239d2f55f3e9f19ef74946be7c 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java
-@@ -44,5 +44,25 @@ public class CraftPhantom extends CraftFlying implements Phantom, CraftEnemy {
+@@ -44,5 +44,17 @@ public class CraftPhantom extends CraftFlying implements Phantom, CraftEnemy {
      public void setShouldBurnInDay(boolean shouldBurnInDay) {
          getHandle().setShouldBurnInDay(shouldBurnInDay);
      }
@@ -1020,21 +1020,13 @@ index 9304e201db1ec96d0916aa8ea781f3e4bc7991e6..8338effd39b1709dbe578e247710a8e5
 +    @Override
 +    public org.bukkit.Location getAnchorLocation() {
 +        net.minecraft.core.BlockPos pos = this.getHandle().anchorPoint;
-+        if (pos == null) {
-+            return null;
-+        }
-+
 +        return io.papermc.paper.util.MCUtil.toLocation(this.getHandle().level(), pos);
 +    }
 +
 +    @Override
 +    public void setAnchorLocation(org.bukkit.Location location) {
-+        net.minecraft.core.BlockPos pos = null;
-+        if (location != null) {
-+            pos = io.papermc.paper.util.MCUtil.toBlockPosition(location);
-+        }
-+
-+        this.getHandle().anchorPoint = pos;
++        com.google.common.base.Preconditions.checkArgument(location != null, "location cannot be null");
++        this.getHandle().anchorPoint = io.papermc.paper.util.MCUtil.toBlockPosition(location);
 +    }
      // Paper end
  }

patches/server/0679-More-Projectile-API.patch

@@ -582,36 +582,35 @@ index 696fdfa723aa896a67946f862d7c6890f7f7ab17..4f1fa7dec78970bdfc184d3c1f1632dc
      @Override
      public net.minecraft.world.entity.projectile.Projectile getHandle() {
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftShulkerBullet.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftShulkerBullet.java
-index d685d09cae5f862c0004f148298c800736d2139e..636c4481e3afdf20197e502cf221f5d34d18f101 100644
+index d685d09cae5f862c0004f148298c800736d2139e..b3797a43eeee11cb7ae0774d61bd5f195d0aa3ad 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftShulkerBullet.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftShulkerBullet.java
-@@ -12,20 +12,7 @@ public class CraftShulkerBullet extends AbstractProjectile implements ShulkerBul
+@@ -12,31 +12,56 @@ public class CraftShulkerBullet extends AbstractProjectile implements ShulkerBul
          super(server, entity);
      }
  
--    @Override
++    // Paper - moved to AbstractProjectile
++
++    @Override
++    public org.bukkit.entity.Entity getTarget() {
++        return this.getHandle().getTarget() != null ? this.getHandle().getTarget().getBukkitEntity() : null;
++    }
++
+     @Override
 -    public ProjectileSource getShooter() {
 -        return this.getHandle().projectileSource;
--    }
--
--    @Override
++    public void setTarget(org.bukkit.entity.Entity target) {
++        Preconditions.checkState(!this.getHandle().generation, "Cannot set target during world generation");
++
++        this.getHandle().setTarget(target == null ? null : ((CraftEntity) target).getHandle());
+     }
+ 
+     @Override
 -    public void setShooter(ProjectileSource shooter) {
 -        if (shooter instanceof Entity) {
 -            this.getHandle().setOwner(((CraftEntity) shooter).getHandle());
 -        } else {
 -            this.getHandle().setOwner(null);
--        }
--        this.getHandle().projectileSource = shooter;
--    }
-+    // Paper - moved to AbstractProjectile
- 
-     @Override
-     public org.bukkit.entity.Entity getTarget() {
-@@ -39,6 +26,40 @@ public class CraftShulkerBullet extends AbstractProjectile implements ShulkerBul
-         this.getHandle().setTarget(target == null ? null : ((CraftEntity) target).getHandle());
-     }
- 
-+    @Override
 +    public org.bukkit.util.Vector getTargetDelta() {
 +        net.minecraft.world.entity.projectile.ShulkerBullet bullet = this.getHandle();
 +        return new org.bukkit.util.Vector(bullet.targetDeltaX, bullet.targetDeltaY, bullet.targetDeltaZ);
@@ -627,27 +626,35 @@ index d685d09cae5f862c0004f148298c800736d2139e..636c4481e3afdf20197e502cf221f5d3
 +
 +    @Override
 +    public org.bukkit.block.BlockFace getCurrentMovementDirection() {
-+        return org.bukkit.craftbukkit.block.CraftBlock.notchToBlockFace(this.getHandle().currentMoveDirection);
-+    }
-+
-+    @Override
++        net.minecraft.core.Direction dir = this.getHandle().currentMoveDirection;
++        if (dir == null) {
++            return null; // random dir
+         }
+-        this.getHandle().projectileSource = shooter;
++        return org.bukkit.craftbukkit.block.CraftBlock.notchToBlockFace(dir);
+     }
+ 
+     @Override
+-    public org.bukkit.entity.Entity getTarget() {
+-        return this.getHandle().getTarget() != null ? this.getHandle().getTarget().getBukkitEntity() : null;
 +    public void setCurrentMovementDirection(org.bukkit.block.BlockFace movementDirection) {
 +        this.getHandle().currentMoveDirection = org.bukkit.craftbukkit.block.CraftBlock.blockFaceToNotch(movementDirection);
-+    }
-+
-+    @Override
+     }
+ 
+     @Override
+-    public void setTarget(org.bukkit.entity.Entity target) {
+-        Preconditions.checkState(!this.getHandle().generation, "Cannot set target during world generation");
 +    public int getFlightSteps() {
 +        return this.getHandle().flightSteps;
 +    }
-+
+ 
+-        this.getHandle().setTarget(target == null ? null : ((CraftEntity) target).getHandle());
 +    @Override
 +    public void setFlightSteps(int steps) {
 +        this.getHandle().flightSteps = steps;
-+    }
-+
+     }
+ 
      @Override
-     public String toString() {
-         return "CraftShulkerBullet";
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftThrownPotion.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftThrownPotion.java
 index d67a80161b3e7c1fe02a6ed9d341c00dc7c2847a..f6fa6f1ac50b757dd3bc9a8dee9f6085446182c8 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftThrownPotion.java