Paper/nms-patches/EntityWolf.patch

--- a/net/minecraft/server/EntityWolf.java
+++ b/net/minecraft/server/EntityWolf.java
@@ -4,6 +4,11 @@
 import java.util.function.Predicate;
 import javax.annotation.Nullable;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityTargetEvent.TargetReason;
+// CraftBukkit end
+
 public class EntityWolf extends EntityTameableAnimal {
 
     private static final DataWatcherObject<Float> DATA_HEALTH = DataWatcher.a(EntityWolf.class, DataWatcherRegistry.c);
@@ -42,7 +47,7 @@
         this.goalSelector.a(10, new PathfinderGoalRandomLookaround(this));
         this.targetSelector.a(1, new PathfinderGoalOwnerHurtByTarget(this));
         this.targetSelector.a(2, new PathfinderGoalOwnerHurtTarget(this));
-        this.targetSelector.a(3, (new PathfinderGoalHurtByTarget(this, new Class[0])).a());
+        this.targetSelector.a(3, (new PathfinderGoalHurtByTarget(this, new Class[0])).a(new Class[0])); // CraftBukkit - decompile error
         this.targetSelector.a(4, new PathfinderGoalRandomTargetNonTamed<>(this, EntityAnimal.class, false, EntityWolf.bD));
         this.targetSelector.a(4, new PathfinderGoalRandomTargetNonTamed<>(this, EntityTurtle.class, false, EntityTurtle.bz));
         this.targetSelector.a(5, new PathfinderGoalNearestAttackableTarget<>(this, EntitySkeletonAbstract.class, false));
@@ -61,6 +66,22 @@
         this.getAttributeMap().b(GenericAttributes.ATTACK_DAMAGE).setValue(2.0D);
     }
 
+    // CraftBukkit - add overriden version
+    @Override
+    public boolean setGoalTarget(EntityLiving entityliving, org.bukkit.event.entity.EntityTargetEvent.TargetReason reason, boolean fire) {
+        if (!super.setGoalTarget(entityliving, reason, fire)) {
+            return false;
+        }
+        entityliving = getGoalTarget();
+        if (entityliving == null) {
+            this.setAngry(false);
+        } else if (!this.isTamed()) {
+            this.setAngry(true);
+        }
+        return true;
+    }
+    // CraftBukkit end
+
     @Override
     public void setGoalTarget(@Nullable EntityLiving entityliving) {
         super.setGoalTarget(entityliving);
@@ -101,6 +122,11 @@
     public void a(NBTTagCompound nbttagcompound) {
         super.a(nbttagcompound);
         this.setAngry(nbttagcompound.getBoolean("Angry"));
+        // CraftBukkit start - moved from below, SPIGOT-4893
+        if (this.getGoalTarget() == null && this.isAngry()) {
+            this.setAngry(false);
+        }
+        // CraftBukkit end
         if (nbttagcompound.hasKeyOfType("CollarColor", 99)) {
             this.setCollarColor(EnumColor.fromColorIndex(nbttagcompound.getInt("CollarColor")));
         }
@@ -137,7 +163,7 @@
             this.world.broadcastEntityEffect(this, (byte) 8);
         }
 
-        if (!this.world.isClientSide && this.getGoalTarget() == null && this.isAngry()) {
+        if (false && !this.world.isClientSide && this.getGoalTarget() == null && this.isAngry()) { // CraftBukkit - SPIGOT-4893
             this.setAngry(false);
         }
 
@@ -217,7 +243,8 @@
             Entity entity = damagesource.getEntity();
 
             if (this.goalSit != null) {
-                this.goalSit.setSitting(false);
+                // CraftBukkit - moved into EntityLiving.d(DamageSource, float)
+                // this.goalSit.setSitting(false);
             }
 
             if (entity != null && !(entity instanceof EntityHuman) && !(entity instanceof EntityArrow)) {
@@ -264,7 +291,7 @@
                             itemstack.subtract(1);
                         }
 
-                        this.heal((float) item.getFoodInfo().getNutrition());
+                        this.heal((float) item.getFoodInfo().getNutrition(), org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.EATING); // CraftBukkit
                         return true;
                     }
                 } else if (item instanceof ItemDye) {
@@ -285,7 +312,7 @@
                 this.goalSit.setSitting(!this.isSitting());
                 this.jumping = false;
                 this.navigation.o();
-                this.setGoalTarget((EntityLiving) null);
+                this.setGoalTarget((EntityLiving) null, TargetReason.FORGOT_TARGET, true); // CraftBukkit - reason
             }
         } else if (item == Items.BONE && !this.isAngry()) {
             if (!entityhuman.abilities.canInstantlyBuild) {
@@ -293,12 +320,13 @@
             }
 
             if (!this.world.isClientSide) {
-                if (this.random.nextInt(3) == 0) {
+                // CraftBukkit - added event call and isCancelled check.
+                if (this.random.nextInt(3) == 0 && !CraftEventFactory.callEntityTameEvent(this, entityhuman).isCancelled()) {
                     this.tame(entityhuman);
                     this.navigation.o();
                     this.setGoalTarget((EntityLiving) null);
                     this.goalSit.setSitting(true);
-                    this.setHealth(20.0F);
+                    this.setHealth(this.getMaxHealth()); // CraftBukkit - 20.0 -> getMaxHealth()
                     this.r(true);
                     this.world.broadcastEntityEffect(this, (byte) 7);
                 } else {