null pointer exception in issue cache

Searching for certain numbers throws the NPE. If I search for 282, for instance, or AMQ-282, it blows up. On the other hand, if I search for AMQ-170, it works fine. Here's the screen dump from a failure:

Cause:
java.lang.NullPointerException

Stack Trace: [hide]

java.lang.NullPointerException
at java.util.LinkedList.remove(Unknown Source)
at org.ofbiz.core.util.UtilCache.get(UtilCache.java:239)
at com.atlassian.jira.issue.cache.IssueCache.getIssue(IssueCache.java:88)
at com.atlassian.jira.issue.cache.IssueCache.getIssue(IssueCache.java:139)
at com.atlassian.jira.issue.cache.IssueCache.getIssue(IssueCache.java:112)
at com.atlassian.jira.issue.cache.DefaultCacheManager.getValueByAttribute(DefaultCacheManager.java:66)
at com.atlassian.jira.issue.managers.CachingIssueManager.getIssue(CachingIssueManager.java:42)
at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.atlassian.util.profiling.object.ObjectProfiler.profiledInvoke(ObjectProfiler.java:71)
at com.atlassian.jira.config.component.DelegatingInvocationHandler.invoke(DelegatingInvocationHandler.java:27)
at $Proxy2.getIssue(Unknown Source)
at com.atlassian.jira.servlet.QuickLinkServlet.service(QuickLinkServlet.java:46)
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)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:142)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:58)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:168)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.jira.web.filters.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:25)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.jira.web.filters.ActionCleanupDelayFilter.doFilter(ActionCleanupDelayFilter.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:36)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:204)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)

Referer URL: http://jira.logicblaze.com/jira/browse/AMQ

Build Information:
Uptime: N/A
Edition: Enterprise
Version: 3.2.1
Build Number: 89

Server Information:
Application Server: Apache Tomcat/5.5.9
Servlet Version: 2.4

Memory Information:
Total Memory: 254 MB
Free Memory: 69 MB
Used Memory: 185 MB

System Information:
System Date: Wednesday, 31 Aug 2005
System Time: 14:57:32
Java Version: 1.5.0_04
Java Vendor: Sun Microsystems Inc.
JVM Version: 1.0
JVM Vendor: Sun Microsystems Inc.
JVM Implementation Version: 1.5.0_04-b05
Java Runtime: Java(TM) 2 Runtime Environment, Standard Edition
Java VM: Java HotSpot(TM) Client VM
User Name: tomcat
User Timezone: America/Los_Angeles
User Locale: English (United States)
System Encoding: UTF-8
Operating System: Linux 2.6.12-1.1372_FC3smp
OS Architecture: i386
Application Server Container:
Database type: postgres72
Database JNDI address: java:comp/env/jdbc/JiraDS

Request Information:
Request URL: http://127.0.0.1:8080/jira/500page.jsp

• Scheme: http
• Server: 127.0.0.1
• Port: 8080
• URI: /jira/500page.jsp
• - Context Path: /jira
• - Servlet Path: /500page.jsp
• - Path Info: null
• - Query String:
  Request Attributes:
• javax.servlet.forward.request_uri : /jira/browse/AMQ-282
• javax.servlet.forward.context_path : /jira
• javax.servlet.forward.servlet_path : /browse
• javax.servlet.forward.path_info : /500page.jsp
• javax.servlet.error.message :
• javax.servlet.error.exception : java.lang.NullPointerException
• os_securityfilter_already_filtered : true
• com.atlassian.jira.web.filters.ActionCleanupDelayFilter : true
• javax.servlet.error.request_uri : /jira/browse/AMQ-282
• javax.servlet.error.status_code : 500
• _sitemesh_filterapplied : true
• jira.webwork.cleanup : false
• javax.servlet.error.servlet_name : quicklink
• atlassian.core.seraph.original.url : /browse/AMQ-282
• loginfilter.already.filtered : true

Request Logging:
0 log statements generated by this request: