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java.lang.NullPointerException: 	at weblogic.servlet.internal.WarSource.getFileSourceListing(WarSource.java:173)	at weblogic.servlet.internal.WarSource.listSources(WarSource.java:153)	at weblogic.servlet.internal.WarSource.listSources(WarSource.java:159)	at weblogic.servlet.internal.War.getResourcePaths(War.java:525)	at weblogic.servlet.internal.WebAppServletContext.getResourcePaths(WebAppServletContext.java:943)	at com.liferay.portal.kernel.servlet.ServletContextUtil._getClassNames(ServletContextUtil.java:215)	at com.liferay.portal.kernel.servlet.ServletContextUtil.getClassNames(ServletContextUtil.java:66)	at com.liferay.portal.deploy.hot.BaseHotDeployListener.registerClpMessageListeners(BaseHotDeployListener.java:75)	at com.liferay.portal.deploy.hot.PluginPackageHotDeployListener.doInvokeDeploy(PluginPackageHotDeployListener.java:223)	at com.liferay.portal.deploy.hot.PluginPackageHotDeployListener.invokeDeploy(PluginPackageHotDeployListener.java:167)	at com.liferay.portal.kernel.deploy.hot.HotDeployUtil._doFireDeployEvent(HotDeployUtil.java:108)	at com.liferay.portal.kernel.deploy.hot.HotDeployUtil._fireDeployEvent(HotDeployUtil.java:153)	at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:43)	at com.liferay.portal.kernel.servlet.HookContextListener.contextInitialized(HookContextListener.java:47)	at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:481)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)	at weblogic.servlet.internal.EventsManager.notifyContextCreatedEvent(EventsManager.java:181)	at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1868)	at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3154)	at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1518)	at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:484)	at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425)	at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)	at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)	at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)	at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:247)	at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425)	at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)	at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)	at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:27)	at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:671)	at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)	at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)	at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:59)	at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)	at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)	at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:184)	at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:361)	at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:51)	at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:200)	at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:30)	at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:240)	at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:169)	at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:123)	at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:180)	at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:96)	at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)