Question

求请教两个错误javaweb

Error invoking 'com.hr.service.IHrService.syncEmpPromotion(java.lang.String)'. Nested exception is java.lang.reflect.InvocationTargetException: null

这个是我通过本地 去向服务器传送数据时出现的错误，求怎么解决
下边是上边运行后出现错误

严重: Exception sending context destroyed event to listener instance of class com.hjsoft.TaskSchedule
java.lang.NullPointerException
at com.hjsoft.TaskSchedule.contextDestroyed(TaskSchedule.java:19)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3882)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4523)
at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:924)
at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1046)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1214)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:595)

Answer 1

是不是某个变量没初始化 或者销毁了两次

Answer 2

om.hjsoft.TaskSchedule contextDestroyed方法 发上来看看

Answer 3

空指针异常在TaskSchedule.java:19行 没有取到值