code: @Deployment public void testCompleteWithTaskLocalParameters(){
    ProcessInstance processInstance=runtimeService.startProcessInstanceByKey("testTaskLocalVars");
    Task task=taskService.createTaskQuery().singleResult();
    Map<String,Object> taskParams=new HashMap<String,Object>();
    taskParams.put("a",1);
    taskParams.put("b",1);
    taskService.complete(task.getId(),taskParams,true);
    assertNull(runtimeService.getVariable(processInstance.getId(),"a"));
    assertNull(runtimeService.getVariable(processInstance.getId(),"b"));
    assertEquals(new Integer(2),runtimeService.getVariable(processInstance.getId(),"sum"));
    taskService.createTaskQuery().singleResult();
  }
  