tomcat关闭一直报一个警告appears to have started a thread named [Timer-0]

[油焖大虫下]

关闭tomcat一直报一个警告，不知道是哪里的原因，不知道是哪里的timer

十二月 06, 2018 4:50:33 下午 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
十二月 06, 2018 4:50:33 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads
警告: The web application [minigame] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
 java.util.TimerThread.mainLoop(Timer.java:552)
 java.util.TimerThread.run(Timer.java:505)
十二月 06, 2018 4:50:33 下午 org.apache.catalina.core.ApplicationContext log
信息: Destroying Spring FrameworkServlet 'springMVC'

tomcat 8 jdk7 ssm项目

[天涯若风]

long currentTime, executionTime; task = queue.getMin(); synchronized(task.lock) { if (task.state == TimerTask.CANCELLED) { queue.removeMin(); continue; // No action required, poll queue again } currentTime = System.currentTimeMillis(); executionTime = task.nextExecutionTime; if (taskFired = (executionTime<=currentTime)) { if (task.period == 0) { // Non-repeating, remove queue.removeMin(); task.state = TimerTask.EXECUTED; } else { // Repeating task, reschedule queue.rescheduleMin( task.period<0 ? currentTime - task.period : executionTime + task.period); } } } if (!taskFired) // Task hasn't yet fired; wait queue.wait(executionTime - currentTime);