code: public static Invoker parseInvoker(Object proxyObject) {
          InvocationHandler handler = java.lang.reflect.Proxy.getInvocationHandler(proxyObject);
          if (handler instanceof JDKInvocationHandler) {
              return ((JDKInvocationHandler) handler).getProxyInvoker();
          }
          return null;
      }
docs: Parse proxy invoker from proxy object
  
  @param proxyObject Proxy object
  @return proxy invoker