Jira crashes after running for several days

After running for at least a week, Jira spontaneously becomes unusable with an error like:
javax.servlet.ServletException: No presentation file with name '/secure/views/issue/addcomment.jsp' found!

All pages return this error.

Full stack trace:
javax.servlet.ServletException: No presentation file with name '/secure/views/issue/addcomment.jsp' found!
at com.atlassian.jira.web.dispatcher.JiraServletDispatcher.service(JiraServletDispatcher.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java(Compiled Code))
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java(Compiled Code))
at com.atlassian.jira.web.filters.SitemeshExcludePathFilter.doFilter(SitemeshExcludePathFilter.java:36)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.jira.web.filters.ActionCleanupDelayFilter.doFilter(ActionCleanupDelayFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.jira.web.filters.gzip.GzipFilter.doFilter(GzipFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java(Compiled Code))
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java(Compiled Code))
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java(Compiled Code))
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java(Compiled Code))
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java(Compiled Code))
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java(Compiled Code))
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java(Compiled Code))
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java(Compiled Code))
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java(Compiled Code))
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java(Compiled Code))
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java(Compiled Code))
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java(Compiled Code))
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java(Compiled Code))
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java(Compiled Code))
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java(Compiled Code))
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java(Compiled Code))
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java(Compiled Code))
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java(Compiled Code))
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java(Compiled Code))
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java(Compiled Code))
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java(Compiled Code))
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:688)
at java.lang.Thread.run(Thread.java:568)