[Spacewalk-list] 'Internal Server Error' and traceback when getting target systems for packages

[chris balcum]

Whenever I try to get the ‘Target Systems’ for a package, I get hit with a 500 error and this traceback email:

The following exception occurred while executing this request:
GET /rhn/software/packages/TargetSystems.do

Date:6/30/15 9:17:32 PM UTC
Headers:
 host: bos-spacewalk
 connection: keep-alive
 accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
 user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36
 referer: https://bos-spacewalk/rhn/software/packages/InstalledSystems.do?pid=84583 <https://bos-spacewalk/rhn/software/packages/InstalledSystems.do?pid=84583>
 accept-encoding: gzip, deflate, sdch
 accept-language: en-US,en;q=0.8,gl;q=0.6
 cookie: JSESSIONID=CB3752004C3039E2B7D02361AB80A149; DWRSESSIONID=Ju2dcU$11Ey1GyUSPoKy8CtV5Vk; pxt-session-cookie=1579x374b37d8a2b333e1a04f8d7375df244c40b089e2b0ce14b94337d087733b213b

Request:
Local Name = bos-spacewalk
Server Name = bos-spacewalk
Requested Session Id came from Cookie
Requested Session Valid = true
Session = org.apache.catalina.session.StandardSessionFacade at 41a3a848[session=StandardSession[CB3752004C3039E2B7D02361AB80A149]]
Protocol = https
Request Locale = en_US
Request Character Encoding = UTF-8
Attribute Names = rhnActiveLang, pageList, __sitemesh__page, legends, javax.servlet.jsp.jstl.fmt.timeZone.request, javax.servlet.error.status_code, javax.servlet.error.servlet_name, package_name, javax.servlet.request.key_size, pid, requestedUri, javax.servlet.request.ssl_session, javax.servlet.error.message, innernavtitle, org.apache.struts.action.MESSAGE, com.opensymphony.sitemesh.APPLIED_ONCE, session, list_1680466951_rhn_set, javax.servlet.request.cipher_suite, javax.servlet.error.exception, parentUrl, javax.servlet.error.request_uri, org.apache.struts.action.mapping.instance, org.apache.struts.action.MODULE, 


User Information:
User cbalcum (id 2, org_id 1)

Exception:
java.lang.NullPointerException
	at com.redhat.rhn.frontend.action.systems.SystemListHelper.setSystemStatusDisplay(SystemListHelper.java:142)
	at com.redhat.rhn.frontend.taglibs.list.decorators.SystemIconDecorator.elaborateContents(SystemIconDecorator.java:52)
	at com.redhat.rhn.frontend.taglibs.list.decorators.SystemIconDecorator.setCurrentList(SystemIconDecorator.java:40)
	at com.redhat.rhn.frontend.taglibs.list.ListTag.doAfterBodyRenderListBegin(ListTag.java:776)
	at com.redhat.rhn.frontend.taglibs.list.ListTag.doAfterBody(ListTag.java:797)
	at org.apache.jsp.WEB_002dINF.pages.rhnpackage.targetsystems_jsp._jspx_meth_rl_005flist_005f0(Unknown Source)
	at org.apache.jsp.WEB_002dINF.pages.rhnpackage.targetsystems_jsp._jspx_meth_rl_005flistset_005f0(Unknown Source)
	at org.apache.jsp.WEB_002dINF.pages.rhnpackage.targetsystems_jsp._jspx_meth_html_005fhtml_005f0(Unknown Source)
	at org.apache.jsp.WEB_002dINF.pages.rhnpackage.targetsystems_jsp._jspService(Unknown Source)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
	at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1078)
	at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:396)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:232)
	at com.redhat.rhn.frontend.struts.RhnRequestProcessor.process(RhnRequestProcessor.java:105)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.redhat.rhn.frontend.servlets.AuthFilter.doFilter(AuthFilter.java:127)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
	at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.doFilter(LocalizedEnvironmentFilter.java:67)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.redhat.rhn.frontend.servlets.EnvironmentFilter.doFilter(EnvironmentFilter.java:100)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.redhat.rhn.frontend.servlets.SessionFilter.doFilter(SessionFilter.java:57)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.redhat.rhn.frontend.servlets.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:97)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
	at java.lang.Thread.run(Thread.java:662)

Running 2.3 stable. Unsure what other logs to check, any insight would be helpful.
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