MicroSocketClientInvoker clientInvoker = (MicroSocketClientInvoker) client.getInvoker();
Field field = MicroSocketClientInvoker.class.getDeclaredField("pool");
field.setAccessible(true);
List pool = (List) field.get(clientInvoker);
assertEquals(1, pool.size());
ClientSocketWrapper csw = (ClientSocketWrapper) pool.get(0);
field = ClientSocketWrapper.class.getDeclaredField("in");
field.setAccessible(true);
InputStream client_in1 = (InputStream) field.get(csw);
assertTrue(client_in1 instanceof TestObjectInputStream);
field = ClientSocketWrapper.class.getDeclaredField("out");