A timed out session causes stacktraces in half-completed actions

 Cause:
com.atlassian.jira.exception.IssuePermissionException: User 'null' does not have permission to see issue 'TP-1'

Stack Trace: [hide]

com.atlassian.jira.exception.IssuePermissionException: User 'null' does not have permission to see issue 'TP-1'
	at com.atlassian.jira.web.action.issue.AbstractIssueSelectAction.getIssue(AbstractIssueSelectAction.java:77)
	at com.atlassian.jira.web.action.issue.AbstractIssueSelectAction.getIssueObject(AbstractIssueSelectAction.java:325)
	at com.atlassian.jira.web.action.issue.CommentAssignIssue.getWorkflowTransitionUtil(CommentAssignIssue.java:46)
	at com.atlassian.jira.web.action.issue.CommentAssignIssue.getFieldScreenRenderer(CommentAssignIssue.java:75)
	at com.atlassian.jira.web.action.issue.CommentAssignIssue.doValidation(CommentAssignIssue.java:130)
	at webwork.action.ActionSupport.validate(ActionSupport.java:373)
	at webwork.action.ActionSupport.execute(ActionSupport.java:150)
	at com.atlassian.jira.action.JiraActionSupport.execute(JiraActionSupport.java:58)
	at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:132)
	at com.atlassian.jira.web.dispatcher.JiraServletDispatcher.service(JiraServletDispatcher.java:178)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)