public void withCallbackRaw(String arg, Callback callback) {
        callback.complete("Hello", "CNT");
        callback.complete(arg,"CNT");
        callback.complete(null,null);
    }
public void withCallbackRaw ( String arg , Callback callback ) { callback . complete ( "Hello" , "CNT" ) ; callback . complete ( arg , "CNT" ) ; callback . complete ( null , null ) ; }
Actor method