PaperMC/paper-server/nms-patches/net/minecraft/world/entity/animal/EntitySnowman.patch

--- a/net/minecraft/world/entity/animal/EntitySnowman.java
+++ b/net/minecraft/world/entity/animal/EntitySnowman.java
@@ -40,6 +40,10 @@
 import net.minecraft.world.level.gameevent.GameEvent;
 import net.minecraft.world.phys.Vec3D;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+// CraftBukkit end
+
 public class EntitySnowman extends EntityGolem implements IShearable, IRangedEntity {
 
     private static final DataWatcherObject<Byte> DATA_PUMPKIN_ID = DataWatcher.a(EntitySnowman.class, DataWatcherRegistry.BYTE);
@@ -100,7 +104,7 @@
             int k = MathHelper.floor(this.locZ());
 
             if (this.level.getBiome(new BlockPosition(i, 0, k)).getAdjustedTemperature(new BlockPosition(i, j, k)) > 1.0F) {
-                this.damageEntity(DamageSource.ON_FIRE, 1.0F);
+                this.damageEntity(CraftEventFactory.MELTING, 1.0F); // CraftBukkit - DamageSource.BURN -> CraftEventFactory.MELTING
             }
 
             if (!this.level.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
@@ -116,7 +120,7 @@
                 BlockPosition blockposition = new BlockPosition(i, j, k);
 
                 if (this.level.getType(blockposition).isAir() && this.level.getBiome(blockposition).getAdjustedTemperature(blockposition) < 0.8F && iblockdata.canPlace(this.level, blockposition)) {
-                    this.level.setTypeUpdate(blockposition, iblockdata);
+                    org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockFormEvent(this.level, blockposition, iblockdata, this); // CraftBukkit
                 }
             }
         }
@@ -147,6 +151,11 @@
         ItemStack itemstack = entityhuman.b(enumhand);
 
         if (itemstack.a(Items.SHEARS) && this.canShear()) {
+            // CraftBukkit start
+            if (!CraftEventFactory.handlePlayerShearEntityEvent(entityhuman, this, itemstack, enumhand)) {
+                return EnumInteractionResult.PASS;
+            }
+            // CraftBukkit end
             this.shear(SoundCategory.PLAYERS);
             this.a(GameEvent.SHEAR, (Entity) entityhuman);
             if (!this.level.isClientSide) {