Symptoms

1. While deleting a project, the user gets a NullPointerException error. The following appears in the atlassian-jira.log:

   2012-02-09 20:55:29,616 TP-Processor2 ERROR      [500ErrorPage.jsp] Exception caught in 500 page null
   java.lang.NullPointerException
   	at com.atlassian.jira.security.roles.CachingProjectRoleAndActorStore$ProjectRoleActorsCache.removeByProject(CachingProjectRoleAndActorStore.java:213)
   	at com.atlassian.jira.security.roles.CachingProjectRoleAndActorStore.removeAllRoleActorsByProject(CachingProjectRoleAndActorStore.java:137)
   	at com.atlassian.jira.security.roles.DefaultProjectRoleManager.removeAllRoleActorsByProject(DefaultProjectRoleManager.java:200)
   	at com.atlassian.jira.project.DefaultProjectManager.removeProject(DefaultProjectManager.java:238)

2. Trying to view the project results in the following:

   2012-01-23 10:27:35,704 http-9443-6 ERROR      [500ErrorPage.jsp] Exception caught in 500 page null
   java.lang.NullPointerException
       at com.atlassian.jira.projectconfig.contextproviders.ScreensSummaryPanelContextProvider$SimpleIssueTypeScreenScheme.<init>(ScreensSummaryPanelContextProvider.java:217)
       at com.atlassian.jira.projectconfig.contextproviders.ScreensSummaryPanelContextProvider.getContextMap(ScreensSummaryPanelContextProvider.java:59)
       at com.atlassian.jira.plugin.webfragment.CacheableContextProviderDecorator.initContextMap(CacheableContextProviderDecorator.java:70)

Trying to view any project's Screens Tab may result in the same behaviour described in Can't View Screens in Administration Project Section.

Cause

The cached index files are not valid. This is tracked under JRASERVER-28069 - Cannot delete a project, stacktrace on error screen.

Resolution