@Test
public void testPersistAsyncResponseInvoker() {
System.out.println("SampleNaiveAsyncTestCase.testUpper2");
Upper upper = node.getService(Upper.class, "SampleNativeAsyncReference");
// call upper to write out the async response invoker
String r = upper.upper("async");
// call upper2 to read it back in again
r = upper.upper2("async2");
System.out.println(r);
assertEquals("ASYNC2", r);
}