用weblogic重发布后一直显示无法加载侦听器,求大神

这是错误信息
<Could not load user defined listener: com.myListener.StuBean
java.lang.InstantiationException: com.myListener.StuBean
at java.lang.Class.newInstance(Class.java:359)
at weblogic.servlet.internal.WebComponentContributor.getNewInstance(WebComponentContributor.java:246)
at weblogic.servlet.internal.WebComponentContributor.createInstance(WebComponentContributor.java:291)
at weblogic.servlet.internal.WebAppServletContext.createInstance(WebAppServletContext.java:3967)
at weblogic.servlet.internal.WebAppServletContext.createInstance(WebAppServletContext.java:3955)
Truncated. see log file for complete stacktrace

<Failure occurred in the execution of deployment request with ID "19102593142930" for task "3". Error is: "weblogic.application.ModuleException: java.lang.InstantiationException: com.myListener.StuBean"
weblogic.application.ModuleException: java.lang.InstantiationException: com.myListener.StuBean
at weblogic.application.internal.ExtensibleModuleWrapper.start(ExtensibleModuleWrapper.java:140)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:124)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:216)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:211)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:42)
Truncated. see log file for complete stacktrace
Caused By: java.lang.InstantiationException: com.myListener.StuBean
at java.lang.Class.newInstance(Class.java:359)
at weblogic.servlet.internal.WebComponentContributor.getNewInstance(WebComponentContributor.java:246)
at weblogic.servlet.internal.WebComponentContributor.createInstance(WebComponentContributor.java:291)
at weblogic.servlet.internal.WebAppServletContext.createInstance(WebAppServletContext.java:3967)
at weblogic.servlet.internal.WebAppServletContext.createInstance(WebAppServletContext.java:3955)
Truncated. see log file for complete stacktrace



<Stack trace for message 149004
weblogic.application.ModuleException: java.lang.InstantiationException: com.myListener.StuBean
at weblogic.application.internal.ExtensibleModuleWrapper.start(ExtensibleModuleWrapper.java:140)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:124)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:216)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:211)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:42)
Truncated. see log file for complete stacktrace
Caused By: java.lang.InstantiationException: com.myListener.StuBean
at java.lang.Class.newInstance(Class.java:359)
at weblogic.servlet.internal.WebComponentContributor.getNewInstance(WebComponentContributor.java:246)
at weblogic.servlet.internal.WebComponentContributor.createInstance(WebComponentContributor.java:291)
at weblogic.servlet.internal.WebAppServletContext.createInstance(WebAppServletContext.java:3967)
at weblogic.servlet.internal.WebAppServletContext.createInstance(WebAppServletContext.java:3955)
Truncated. see log file for complete stacktrace

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