teSnapshot() throws NoSuchMethodException {       Invokable<?, ?> method = method(SnapshotAsyncClient.class, "createSnapshot", String.class, CreateSnapshotOptions[].class);       GeneratedHttpRequest httpRequest = processor.createRequest(method, ImmutableList.<Object> of(0));        assertRequestLineEquals(httpRequest,             "GET http://localhost:0000/client/api?response=json&command=createSnapshot&volumeid=0 HTTP/0.0");       assertNonPayloadHeadersEqual(httpRequest, "Accept: application/json\n");       assertPayloadEquals(httpRequest, null, null, false);        assertResponseParserClassEquals(method, httpRequest, UnwrapOnlyJsonValue.class);       assertSaxResponseParserClassEquals(method, null);       assertFallbackClassEquals(method, MapHttp0xxCodesToExceptions.class);        checkFilters(httpRequest);    }     public void test