code: @Test public void testExecuteLimitInvokeWitException() throws Exception {
    Invoker invoker=Mockito.mock(Invoker.class);
    doThrow(new RpcException()).when(invoker).invoke(any(Invocation.class));
    URL url=URL.valueOf("test://test:11/test?accesslog=true&group=dubbo&version=1.1&executes=10");
    when(invoker.getUrl()).thenReturn(url);
    Invocation invocation=Mockito.mock(Invocation.class);
    when(invocation.getMethodName()).thenReturn("testExecuteLimitInvokeWitException");
    try {
      executeLimitFilter.invoke(invoker,invocation);
    }
   catch (  Exception e) {
      Assert.assertTrue(e instanceof RpcException);
    }
    Assert.assertEquals(1,RpcStatus.getStatus(url,invocation.getMethodName()).getFailed());
  }
  