code: Method findClassAvailableProxySetClassAvailableTargetMethod() throws Exception {
          Class<?> proxyClass = Class.forName(CLASS_AVAILABLE_PROXY_CLASS_NAME);
          Method method = ReflectionHelper.getDeclaredMethod(proxyClass, "setClassAvailableTarget", Object.class, Method.class);
          ReflectionHelper.setAccessible(method, true);
          return method;
      }
docs: Reflectively locate the {@code setClassAvailableTarget} method on
  the proxy at runtime.
  
  @return the {@code setProcessCandidateTarget} method instance
  
  @throws Exception if a reflection error occurred