at jdk.internal.reflect.GeneratedMethodAccessor1684.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at se.krka.kahlua.integration.expose.caller.MethodCaller.call(MethodCaller.java:62) at se.krka.kahlua.integration.expose.LuaJavaInvoker.call(LuaJavaInvoker.java:198) at se.krka.kahlua.integration.expose.MultiLuaJavaInvoker.call(MultiLuaJavaInvoker.java:79) at se.krka.kahlua.vm.KahluaThread.callJava(KahluaThread.java:182) at se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:1007) at se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:163) at se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1980) at se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1827) at se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:38) at zombie.ui.UIElement.render(UIElement.java:1534)