Paper/nms-patches/EntitySilverfish.patch

--- a/net/minecraft/server/EntitySilverfish.java
+++ b/net/minecraft/server/EntitySilverfish.java
@@ -18,7 +18,7 @@
         this.goalSelector.a(3, this.b);
         this.goalSelector.a(4, new PathfinderGoalMeleeAttack(this, 1.0D, false));
         this.goalSelector.a(5, new EntitySilverfish.PathfinderGoalSilverfishHideInBlock(this));
-        this.targetSelector.a(1, (new PathfinderGoalHurtByTarget(this, new Class[0])).a());
+        this.targetSelector.a(1, (new PathfinderGoalHurtByTarget(this, new Class[0])).a(new Class[0])); // CraftBukkit - decompile error
         this.targetSelector.a(2, new PathfinderGoalNearestAttackableTarget<>(this, EntityHuman.class, true));
     }
 
@@ -156,6 +156,11 @@
                 IBlockData iblockdata = world.getType(blockposition);
 
                 if (BlockMonsterEggs.h(iblockdata)) {
+                    // CraftBukkit start
+                    if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this.a, blockposition, BlockMonsterEggs.c(iblockdata.getBlock())).isCancelled()) {
+                        return;
+                    }
+                    // CraftBukkit end
                     world.setTypeAndData(blockposition, BlockMonsterEggs.c(iblockdata.getBlock()), 3);
                     this.a.doSpawnEffect();
                     this.a.die();
@@ -202,6 +207,11 @@
                             Block block = iblockdata.getBlock();
 
                             if (block instanceof BlockMonsterEggs) {
+                                // CraftBukkit start
+                                if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this.silverfish, blockposition1, Blocks.AIR.getBlockData()).isCancelled()) {
+                                    continue;
+                                }
+                                // CraftBukkit end
                                 if (world.getGameRules().getBoolean(GameRules.MOB_GRIEFING)) {
                                     world.a(blockposition1, true, this.silverfish);
                                 } else {