[Spacewalk-list] Exception in WebUI when attempting to list package upgrades

[Graeme Gillies]

Hi
I have a spacewalk 0.5 (nightly) install on a CentOS 5.2 xen virtual 
machine which I am using for some testing. I have successfully set up my 
software channels and registered a machine to the spacewalk instace. 
When I look in the webui under systems the system lists it has 32 
updates available. When I click on the 32 updates link I get an 
Internal Server Error in the UI

Looking at the tomcat logs I see

javax.servlet.ServletException: javax.servlet.jsp.el.ELException: An 
error occurred while getting property "errata" from an instance of class 
com.redhat.rhn.frontend.dto.UpgradablePackageListItem
	at 
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:842)
	at 
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
	at 
org.apache.jsp.WEB_002dINF.pages.systems.details.packages.upgradable_jsp._jspService(Unknown 
Source)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:691)
	at 
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
	at 
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
	at 
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at 
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
	at 
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
	at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
	at 
com.redhat.rhn.frontend.struts.RhnRequestProcessor.process(RhnRequestProcessor.java:82)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.redhat.rhn.frontend.servlets.AuthFilter.doFilter(AuthFilter.java:73)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	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:215)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at 
com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.doFilter(LocalizedEnvironmentFilter.java:67)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at 
com.redhat.rhn.frontend.servlets.EnvironmentFilter.doFilter(EnvironmentFilter.java:108)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at 
com.redhat.rhn.frontend.servlets.SessionFilter.doFilter(SessionFilter.java:55)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at 
com.redhat.rhn.frontend.servlets.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:97)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
	at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
	at 
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
	at 
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
	at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
	at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.NullPointerException
	at 
com.redhat.rhn.frontend.dto.UpgradablePackageListItem.getErrata(UpgradablePackageListItem.java:107)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:314)
	at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
	at 
org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:264)
	at 
org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:190)
	at 
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:929)
	at 
org.apache.jsp.WEB_002dINF.pages.systems.details.packages.upgradable_jsp._jspx_meth_c_005fforEach_005f1(Unknown 
Source)
	at 
org.apache.jsp.WEB_002dINF.pages.systems.details.packages.upgradable_jsp._jspx_meth_rl_005fcolumn_005f2(Unknown 
Source)
	at 
org.apache.jsp.WEB_002dINF.pages.systems.details.packages.upgradable_jsp._jspx_meth_rl_005flist_005f0(Unknown 
Source)
	at 
org.apache.jsp.WEB_002dINF.pages.systems.details.packages.upgradable_jsp._jspx_meth_rl_005flistset_005f0(Unknown 
Source)
	... 51 more

Obviously it looks like something relating to the errata table (either 
not populated or populated incorrectly).

Should I file this as a bug? Or is there a work around/something I can 
do to fix this?

Any help is much appreciated.

Thanks in advance

Graeme