Class<?> classInfoClass = leakingLoader.loadClass("org.codehaus.groovy.reflection.ClassInfo");
        Field globalClassValueField = classInfoClass.getDeclaredField("globalClassValue");
        globalClassValueField.setAccessible(true);
        globalClassValue = globalClassValueField.get(null);
        removeFromGlobalClassValue = globalClassValueField.getType().getDeclaredMethod("remove", Class.class);