* Expectation: throws SCMPValidatorException
*/
@Test(expected = SCMPValidatorException.class)
public void t20_subscribeNullMask() throws Exception {
publishService = client.newPublishService(TestConstants.pubServiceName1);
SCSubscribeMessage subMsgRequest = new SCSubscribeMessage(TestConstants.pangram);
SCSubscribeMessage subMsgResponse = null;
subMsgRequest.setMask(null);
subMsgRequest.setSessionInfo(TestConstants.doNothingCmd);
subMsgRequest.setNoDataIntervalSeconds(100);
msgCallback = new MsgCallback(publishService);
subMsgResponse = publishService.subscribe(subMsgRequest, msgCallback);