作业帮Exception in thread "Thread-2" java.lang.NullPointerExceptionat org.loushang.commons.schedule.web.LoadCrontabServlet.doStop(Unknown Source)at org.loushang.commons.schedule.web.LoadCrontabServlet$1.run(Unknown Source)
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Exception in thread "Thread-2" java.lang.NullPointerExceptionat org.loushang.commons.schedule.web.LoadCrontabServlet.doStop(Unknown Source)at org.loushang.commons.schedule.web.LoadCrontabServlet$1.run(Unknown Source)
Exception in thread "Thread-2" java.lang.NullPointerException
at org.loushang.commons.schedule.web.LoadCrontabServlet.doStop(Unknown Source)
at org.loushang.commons.schedule.web.LoadCrontabServlet$1.run(Unknown Source)
Exception in thread "Thread-2" java.lang.NullPointerExceptionat org.loushang.commons.schedule.web.LoadCrontabServlet.doStop(Unknown Source)at org.loushang.commons.schedule.web.LoadCrontabServlet$1.run(Unknown Source)
最常见的错误原因是启动了一个新线程,而主程序或主线程突然结束了,导致异常