Status Code: 500
Exception: org.apache.commons.jelly.JellyTagException: jar:file:/jenkins/jenkins_home/war/WEB-INF/lib/jenkins-core-1.500.jar!/hudson/model/View/index.jelly:44:43: <st:include> Cannot invoke method isEmpty() on null object
Stacktrace: 
javax.servlet.ServletException: org.apache.commons.jelly.JellyTagException: jar:file:/jenkins/jenkins_home/war/WEB-INF/lib/jenkins-core-1.500.jar!/hudson/model/View/index.jelly:44:43: <st:include> Cannot invoke method isEmpty() on null object
        at org.kohsuke.stapler.jelly.JellyClassTearOff.serveIndexJelly(JellyClassTearOff.java:112)
        at org.kohsuke.stapler.jelly.JellyFacet.handleIndexRequest(JellyFacet.java:127)
        at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:562)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:658)
        at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:241)
        at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
        at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:573)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:658)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:487)
        at org.kohsuke.stapler.Stapler.service(Stapler.java:164)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:50)
        at winstone.ServletConfiguration.execute(ServletConfiguration.java:248)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376)
        at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:87)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
        at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
        at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:135)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:272)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:175)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at jenkins.security.ApiTokenFilter.doFilter(ApiTokenFilter.java:64)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
        at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
        at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
        at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:50)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
        at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
        at winstone.RequestDispatcher.forward(RequestDispatcher.java:331)
        at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:215)
        at winstone.RequestHandlerThread.run(RequestHandlerThread.java:140)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:442)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.commons.jelly.JellyTagException: jar:file:/jenkins/jenkins_home/war/WEB-INF/lib/jenkins-core-1.500.jar!/hudson/model/View/index.jelly:44:43: <st:include> Cannot invoke method isEmpty() on null object
        at org.apache.commons.jelly.impl.TagScript.handleException(TagScript.java:726)
        at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:281)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98)
        at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
        at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:270)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.apache.commons.jelly.tags.core.CoreTagLibrary$1.run(CoreTagLibrary.java:98)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:106)
        at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98)
        at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
        at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:270)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:100)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:100)
        at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:100)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:100)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:100)
        at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:93)
        at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:106)
        at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119)
        at org.kohsuke.stapler.jelly.CompressTag.doTag(CompressTag.java:45)
        at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:270)
        at org.kohsuke.stapler.jelly.JellyViewScript.run(JellyViewScript.java:82)
        at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:64)
        at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:55)
        at org.kohsuke.stapler.jelly.JellyClassTearOff.serveIndexJelly(JellyClassTearOff.java:107)
        at org.kohsuke.stapler.jelly.JellyFacet.handleIndexRequest(JellyFacet.java:127)
        at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:562)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:658)
        at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:242)
        ... 42 more
Caused by: java.lang.NullPointerException: Cannot invoke method isEmpty() on null object
        at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77)
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
        at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:32)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
        at java_util_List$isEmpty.call(Unknown Source)
        at hudson.model.View.main.run(main.groovy:6)
        at org.kohsuke.stapler.jelly.groovy.GroovierJellyScript.run(GroovierJellyScript.java:66)
        at org.kohsuke.stapler.jelly.groovy.GroovierJellyScript.run(GroovierJellyScript.java:59)
        at org.kohsuke.stapler.jelly.IncludeTag.doTag(IncludeTag.java:146)
        at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:270)
        ... 77 more