--- a/net/minecraft/server/GeneratorAccess.java
+++ b/net/minecraft/server/GeneratorAccess.java
@@ -46,4 +46,6 @@
     default void triggerEffect(int i, BlockPosition blockposition, int j) {
         this.a((EntityHuman) null, i, blockposition, j);
     }
+
+    WorldServer getMinecraftWorld(); // CraftBukkit
 }