code: @Deployment public void testMultipleTimersOnUserTask(){
    Date startTime=new Date();
    ProcessInstance pi=runtimeService.startProcessInstanceByKey("nonInterruptingTimersOnUserTask");
    Task task1=taskService.createTaskQuery().singleResult();
    assertEquals("First Task",task1.getName());
    TimerJobQuery jobQuery=managementService.createTimerJobQuery().processInstanceId(pi.getId());
    List<Job> jobs=jobQuery.list();
    assertEquals(2,jobs.size());
    processEngineConfiguration.getClock().setCurrentTime(new Date(startTime.getTime() + ((60 * 60 * 1000) + 5000)));
    Job job=managementService.createTimerJobQuery().executable().singleResult();
    assertNotNull(job);
    managementService.moveTimerToExecutableJob(job.getId());
    managementService.executeJob(job.getId());
    assertEquals(1L,jobQuery.count());
    assertEquals(2L,taskService.createTaskQuery().count());
    List<Task> taskList=taskService.createTaskQuery().orderByTaskName().desc().list();
    assertEquals("First Task",taskList.get(0).getName());
    assertEquals("Escalation Task 1",taskList.get(1).getName());
    taskService.complete(taskList.get(1).getId());
    assertEquals(1L,taskService.createTaskQuery().count());
    assertEquals("First Task",taskService.createTaskQuery().singleResult().getName());
    processEngineConfiguration.getClock().setCurrentTime(new Date(startTime.getTime() + ((2 * 60 * 60* 1000) + 5000)));
    waitForJobExecutorToProcessAllJobs(5000L,25L);
    assertEquals(0L,jobQuery.count());
    assertEquals(2L,taskService.createTaskQuery().count());
    taskList=taskService.createTaskQuery().orderByTaskName().desc().list();
    assertEquals("First Task",taskList.get(0).getName());
    assertEquals("Escalation Task 2",taskList.get(1).getName());
    taskService.complete(taskList.get(0).getId());
    assertEquals(1L,taskService.createTaskQuery().count());
    Task escalationTask=taskService.createTaskQuery().singleResult();
    assertEquals("Escalation Task 2",escalationTask.getName());
    taskService.complete(escalationTask.getId());
    assertProcessEnded(pi.getId());
  }
  