Enhancer.enhance( ClassLoader.class, null, NOOP_INTERCEPTOR );
   public void testABC()throws Throwable{         Enhancer.enhance(        A.class,        null, NOOP_INTERCEPTOR );          Enhancer.enhance(        C1.class,        null, NOOP_INTERCEPTOR );            Enhancer.enhance(        B.class,        null, NOOP_INTERCEPTOR );          Enhancer.enhance(        D.class,        null, NOOP_INTERCEPTOR );       }   