Paper/nms-patches/LootEnchantFunction.patch

--- a/net/minecraft/server/LootEnchantFunction.java
+++ b/net/minecraft/server/LootEnchantFunction.java
@@ -37,8 +37,13 @@
 
         if (entity instanceof EntityLiving) {
             int i = EnchantmentManager.g((EntityLiving) entity);
+            // CraftBukkit start - use lootingModifier if set by plugin
+            if (loottableinfo.hasContextParameter(LootContextParameters.LOOTING_MOD)) {
+                i = loottableinfo.getContextParameter(LootContextParameters.LOOTING_MOD);
+            }
+            // CraftBukkit end
 
-            if (i == 0) {
+            if (i <= 0) { // CraftBukkit - account for possible negative looting values from Bukkit
                 return itemstack;
             }
 
@@ -62,7 +67,7 @@
         public b() {}
 
         public void a(JsonObject jsonobject, LootEnchantFunction lootenchantfunction, JsonSerializationContext jsonserializationcontext) {
-            super.a(jsonobject, (LootItemFunctionConditional) lootenchantfunction, jsonserializationcontext);
+            super.a(jsonobject, lootenchantfunction, jsonserializationcontext); // CraftBukkit - decompile error
             jsonobject.add("count", jsonserializationcontext.serialize(lootenchantfunction.a));
             if (lootenchantfunction.c()) {
                 jsonobject.add("limit", jsonserializationcontext.serialize(lootenchantfunction.b));