PaperMC/nms-patches/EntityEnderman.patch

--- a/net/minecraft/server/EntityEnderman.java
+++ b/net/minecraft/server/EntityEnderman.java
@@ -33,7 +33,14 @@
         this.goalSelector.a(11, new EntityEnderman.PathfinderGoalEndermanPickupBlock(this));
         this.targetSelector.a(1, new EntityEnderman.PathfinderGoalPlayerWhoLookedAtTarget(this));
         this.targetSelector.a(2, new PathfinderGoalHurtByTarget(this, false, new Class[0]));
-        this.targetSelector.a(3, new PathfinderGoalNearestAttackableTarget(this, EntityEndermite.class, 10, true, false, EntityEndermite::l));
+        // CraftBukkit - decompile error
+        this.targetSelector.a(3, new PathfinderGoalNearestAttackableTarget(this, EntityEndermite.class, 10, true, false, new Predicate<EntityEndermite>() {
+            @Override
+            public boolean test(EntityEndermite entityendermite) {
+                return entityendermite.l();
+            }
+        }));
+        // CraftBukkit end
     }
 
     protected void initAttributes() {
@@ -45,7 +52,17 @@
     }
 
     public void setGoalTarget(@Nullable EntityLiving entityliving) {
-        super.setGoalTarget(entityliving);
+        // CraftBukkit start - fire event
+        setGoalTarget(entityliving, org.bukkit.event.entity.EntityTargetEvent.TargetReason.UNKNOWN, true);
+    }
+
+    @Override
+    public boolean setGoalTarget(EntityLiving entityliving, org.bukkit.event.entity.EntityTargetEvent.TargetReason reason, boolean fireEvent) {
+        if (!super.setGoalTarget(entityliving, reason, fireEvent)) {
+            return false;
+        }
+        entityliving = getGoalTarget();
+        // CraftBukkit end
         AttributeInstance attributeinstance = this.getAttributeInstance(GenericAttributes.MOVEMENT_SPEED);
 
         if (entityliving == null) {
@@ -59,6 +76,7 @@
                 attributeinstance.b(EntityEnderman.b);
             }
         }
+        return true;
 
     }
 
@@ -277,8 +295,12 @@
             boolean flag = movingobjectposition != null && movingobjectposition.a().equals(blockposition);
 
             if (block.a(TagsBlock.G) && flag) {
-                this.enderman.setCarried(iblockdata);
-                world.setAir(blockposition);
+                // CraftBukkit start - Pickup event
+                if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this.enderman, blockposition, Blocks.AIR.getBlockData()).isCancelled()) {
+                    this.enderman.setCarried(iblockdata);
+                    world.setAir(blockposition);
+                }
+                // CraftBukkit end
             }
 
         }
@@ -308,8 +330,12 @@
             IBlockData iblockdata2 = this.a.getCarried();
 
             if (iblockdata2 != null && this.a(world, blockposition, iblockdata2, iblockdata, iblockdata1)) {
+                // CraftBukkit start - Place event
+                if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this.a, blockposition, iblockdata2).isCancelled()) {
                 world.setTypeAndData(blockposition, iblockdata2, 3);
                 this.a.setCarried((IBlockData) null);
+                }
+                // CraftBukkit end
             }
 
         }