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  1. Jenkins
  2. JENKINS-43218

Discard Unreadable Data leads to NPE in TreeMap.putAll

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    • Jenkins 2.166

      On our instance, Jenkins reports unreadable data of types hudson.maven.MavenModuleSet, hudson.model.Fingerprint, hudson.model.FreeStyleProject, hudson.maven.MavenModuleSetBuild and org.jenkinsci.plugins.DependencyCheck.DependencyCheckBuilder$DescriptorImpl.

      When clicking on the discard button, Jenkins displays the following stacktrace.

      javax.servlet.ServletException: java.lang.NullPointerException
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:796)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
	at org.kohsuke.stapler.MetaClass$5.doDispatch(MetaClass.java:236)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:59)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:126)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	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 jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:93)
	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:171)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
	at java.util.TreeMap.putAll(TreeMap.java:313)
	at java.util.TreeMap.<init>(TreeMap.java:185)
	at hudson.model.Fingerprint.toString(Fingerprint.java:1412)
	at java.lang.String.valueOf(String.java:2994)
	at java.lang.StringBuilder.append(StringBuilder.java:131)
	at hudson.diagnosis.OldDataMonitor.saveAndRemoveEntries(OldDataMonitor.java:365)
	at hudson.diagnosis.OldDataMonitor.doDiscard(OldDataMonitor.java:335)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:335)
	at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:52)
	at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:175)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:108)
	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:124)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
	... 67 more

      As the Stacktrace mentions the Fingerprint.toString method (see source code for that release), here is one of the errors reported for the unreadable hudson.model.Fingerprint data:

      ConversionException: : unexpected character in markup (position: END_TAG seen ...7562</ranges>\r\n < ... @738:7) : : unexpected character in markup (position: END_TAG seen ...7562</ranges>\r\n < ... @738:7) ---- Debugging information ---- message : : unexpected character in markup (position: END_TAG seen ...7562</ranges>\r\n < ... @738:7) cause-exception : com.thoughtworks.xstream.io.StreamException cause-message : : unexpected character in markup (position: END_TAG seen ...7562</ranges>\r\n < ... @738:7) class : java.util.Hashtable required-type : java.util.Hashtable converter-type : hudson.util.RobustMapConverter path : /fingerprint/usages/entry[183] line number : 738 -------------------------------, MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint', MissingFieldException: No field 'entry' found in class 'hudson.model.Fingerprint'

      Please note, that this error does not seem to be related to JENKINS-18809 or JENKINS-17125. The former yields a NPE in hudson.model.AbstractItem.getRootDir, the latter in hudson.model.AbstractBuild.getPreviousBuild. The NPE in this bug ticket occurs in java.util.TreeMap.putAll.

      A last thing to note, is that the error seems to occur during logging another exception in OldDataMonitor.saveAndRemoveEntires (see source code for that release).

            foxtrot9 Mit Naria
            fxnn Felix Neumann
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              Created:
              Updated:
              Resolved: