code: @Deployment public void testMixedCandidateUserDefinition(){
    runtimeService.startProcessInstanceByKey("mixedCandidateUser");
    List<Task> tasks=taskService.createTaskQuery().taskCandidateUser(KERMIT,KERMITSGROUPS).list();
    assertEquals(1,tasks.size());
    tasks=taskService.createTaskQuery().taskCandidateUser(FOZZIE,FOZZIESGROUPS).list();
    assertEquals(1,tasks.size());
    tasks=taskService.createTaskQuery().taskCandidateUser(GONZO,GONZOSGROUPS).list();
    assertEquals(1,tasks.size());
    tasks=taskService.createTaskQuery().taskCandidateUser("mispiggy",null).list();
    assertEquals(0,tasks.size());
  }
  