ossconcurrent.ThreadPoolTask​​Scheduler 初始化缓慢

Question

我们升级了我们的项目，主要是 springboot 1.4.3，java 7 到 java 8。

之后，在应用程序启动过程中，需要超过 8 分钟才能通过 'Initializing ExecutorService 'taskScheduler' '

我们也有活动依赖

下面是日志

2017-01-24 14:56:15 INFO  o.activiti.engine.impl.ProcessEngineImpl:82 - ProcessEngine default created
2017-01-24 14:56:15 INFO  o.a.e.i.a.DefaultAsyncJobExecutor:86 - Starting up the default async job executor [org.activiti.engine.impl.asyncexecutor.DefaultAsyncJobExecutor].
2017-01-24 14:56:15 INFO  o.a.e.i.a.DefaultAsyncJobExecutor:121 - Creating thread pool queue of size 100
2017-01-24 14:56:15 INFO  o.a.e.i.a.DefaultAsyncJobExecutor:126 - Creating executor service with corePoolSize 2, maxPoolSize 10 and keepAliveTime 5000
2017-01-24 14:56:15 INFO  o.a.e.i.a.AcquireTimerJobsRunnable:45 - {} starting to acquire async jobs due
2017-01-24 14:56:16 INFO  o.a.e.i.a.AcquireAsyncJobsDueRunnable:44 - {} starting to acquire async jobs due
2017-01-24 14:57:22 INFO  o.s.s.concurrent.ThreadPoolTaskScheduler:165 - Initializing ExecutorService  'taskScheduler'
2017-01-24 15:05:37 INFO  o.s.w.s.m.m.a.RequestMappingHandlerAdapter:534 - Looking for @Controlle

与 java8 和启动缓慢有什么关系？