Stack trace
javax.servlet.ServletException: org.apache.commons.jelly.JellyTagException: jar:file:/srv/hudson/.jenkins/plugins/warnings/WEB-INF/lib/classes.jar!/hudson/plugins/warnings/WarningsPublisher/config.jelly:6:36: <j:invokeStatic> method getAvailableParsers threw exception: hudson/plugins/violations/ViolationsParser
	at org.kohsuke.stapler.jelly.JellyFacet$1.dispatch(JellyFacet.java:103)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:728)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:858)
	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:248)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:728)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:858)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:631)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:225)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176)
	at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:85)
	at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:99)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)
	at com.cisco.step.jenkins.plugins.people.redirector.PeopleRedirectorPlugin$1.doFilter(PeopleRedirectorPlugin.java:91)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	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 jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117)
	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:142)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:174)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at jenkins.security.ApiTokenFilter.doFilter(ApiTokenFilter.java:79)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
	at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.commons.jelly.JellyTagException: jar:file:/srv/hudson/.jenkins/plugins/warnings/WEB-INF/lib/classes.jar!/hudson/plugins/warnings/WarningsPublisher/config.jelly:6:36: <j:invokeStatic> method getAvailableParsers threw exception: hudson/plugins/violations/ViolationsParser
	at org.apache.commons.jelly.tags.core.InvokeStaticTag.doTag(InvokeStaticTag.java:148)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.JellyViewScript.run(JellyViewScript.java:81)
	at org.kohsuke.stapler.jelly.IncludeTag.doTag(IncludeTag.java:147)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.impl.DynamicTag.doTag(DynamicTag.java:81)
	at org.apache.commons.jelly.impl.StaticTagScript.run(StaticTagScript.java:124)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.TagSupport.invokeBody(TagSupport.java:161)
	at org.apache.commons.jelly.tags.core.ForEachTag.doTag(ForEachTag.java:150)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:99)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:99)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:99)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.TagSupport.invokeBody(TagSupport.java:161)
	at org.apache.commons.jelly.tags.core.WhenTag.doTag(WhenTag.java:46)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.TagSupport.invokeBody(TagSupport.java:161)
	at org.apache.commons.jelly.tags.core.ChooseTag.doTag(ChooseTag.java:38)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.JellyViewScript.run(JellyViewScript.java:81)
	at org.kohsuke.stapler.jelly.IncludeTag.doTag(IncludeTag.java:147)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:99)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:99)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$1.run(CoreTagLibrary.java:98)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:99)
	at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91)
	at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99)
	at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:120)
	at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105)
	at org.kohsuke.stapler.jelly.JellyViewScript.run(JellyViewScript.java:81)
	at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:63)
	at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:53)
	at org.kohsuke.stapler.jelly.JellyFacet$1.dispatch(JellyFacet.java:95)
	... 66 more
Caused by: java.lang.NoClassDefFoundError: hudson/plugins/violations/ViolationsParser
	at hudson.plugins.warnings.parser.ParserRegistry.getAllParsers(ParserRegistry.java:203)
	at hudson.plugins.warnings.parser.ParserRegistry.getAvailableParsers(ParserRegistry.java:94)
	at sun.reflect.GeneratedMethodAccessor12269.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.commons.jelly.tags.core.InvokeStaticTag.doTag(InvokeStaticTag.java:125)
	... 163 more
Caused by: java.lang.ClassNotFoundException: hudson.plugins.violations.ViolationsParser
	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1375)
	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1325)
	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1078)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	... 169 more