code: public void testGetResourceAsStreamNullArguments(){
    try {
      repositoryService.getResourceAsStream(null,"resource");
      fail("ActivitiException expected");
    }
   catch (  ActivitiIllegalArgumentException ae) {
      assertTextPresent("deploymentId is null",ae.getMessage());
    }
    try {
      repositoryService.getResourceAsStream("deployment",null);
      fail("ActivitiException expected");
    }
   catch (  ActivitiIllegalArgumentException ae) {
      assertTextPresent("resourceName is null",ae.getMessage());
    }
  }
  