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  1. Jenkins
  2. JENKINS-39632

Unselecting "Build when a change is pushed to GitHub" results in NullPointerException and breaks all builds in Jenkins

    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
    • github-plugin
    • None

      Deselecting the "Build when a change is pushed to GitHub" checkbox for an existing project, causes a full page NullPointerException stack trace to appear and results in every job that uses GitHub webhooks on the same instance of Jenkins to fail.

      This change also causes the full page stack trace to be thrown every time the job's configuration is saved, only reverting the change with the Job Configuration History plugin allows Jenkins to be put back to normal.

      Additionally, it appears this causes a number of other core Jenkins tasks to fail with NullPointerExceptions. I hope to provide a ZIP from the Support plugin tomorrow that'll provide additional details.

      Here's what's removed from the job config.xml that causes the failure:

      <triggers>
        <com.cloudbees.jenkins.GitHubPushTrigger plugin="github@1.22.4">
          <null/>
          <spec></spec>
        </com.cloudbees.jenkins.GitHubPushTrigger>
      </triggers>
      

      Here's the stack trace that happens when trying to save any edit to that job.

      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.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.MetaClass$5.doDispatch(MetaClass.java:236)
      	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
      	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
      	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
      	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:126)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	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$1.doFilter(ChainedServletFilter.java:87)
      	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
      	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
      	at org.eclipse.jetty.server.Server.handle(Server.java:499)
      	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
      	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
      	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
      	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: java.lang.NullPointerException
      	at hudson.model.AbstractProject.submit(AbstractProject.java:1884)
      	at hudson.model.Project.submit(Project.java:230)
      	at hudson.model.Job.doConfigSubmit(Job.java:1246)
      	at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:796)
      	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:606)
      	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)
      	... 66 more
      

      Here's what shows up in `/log`:

      Nov 09, 2016 7:54:58 PM SEVERE hudson.model.Project createTransientActions
      Error loading trigger.
      java.lang.NullPointerException
      	at hudson.model.Project.createTransientActions(Project.java:266)
      	at hudson.model.AbstractProject.updateTransientActions(AbstractProject.java:756)
      	at hudson.model.AbstractProject.save(AbstractProject.java:307)
      	at hudson.util.PersistedList.onModified(PersistedList.java:173)
      	at hudson.util.PersistedList.replaceBy(PersistedList.java:85)
      	at hudson.model.AbstractProject.submit(AbstractProject.java:1882)
      	at hudson.model.Project.submit(Project.java:230)
      	at hudson.model.Job.doConfigSubmit(Job.java:1246)
      	at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:796)
      	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:606)
      	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)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      	at org.kohsuke.stapler.MetaClass$5.doDispatch(MetaClass.java:236)
      	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
      	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
      	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
      	at com.cloudbees.jenkins.support.slowrequest.SlowRequestFilter.doFilter(SlowRequestFilter.java:37)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
      	at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
      	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:126)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	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$1.doFilter(ChainedServletFilter.java:87)
      	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
      	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
      	at org.eclipse.jetty.server.Server.handle(Server.java:499)
      	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
      	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
      	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
      	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      
      Nov 09, 2016 7:54:58 PM WARNING org.eclipse.jetty.util.log.JavaUtilLog warn
      Error while serving https://url.omitted.here/jobNameHere/configSubmit
      java.lang.reflect.InvocationTargetException
      	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:606)
      	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)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      	at org.kohsuke.stapler.MetaClass$5.doDispatch(MetaClass.java:236)
      	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
      	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
      	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
      	at com.cloudbees.jenkins.support.slowrequest.SlowRequestFilter.doFilter(SlowRequestFilter.java:37)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
      	at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
      	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:126)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	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$1.doFilter(ChainedServletFilter.java:87)
      	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
      	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
      	at org.eclipse.jetty.server.Server.handle(Server.java:499)
      	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
      	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
      	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
      	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: java.lang.NullPointerException
      	at hudson.model.AbstractProject.submit(AbstractProject.java:1884)
      	at hudson.model.Project.submit(Project.java:230)
      	at hudson.model.Job.doConfigSubmit(Job.java:1246)
      	at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:796)
      	... 74 more
      

      Here are some of the other exceptions being thrown in `/log` as a result:

      Nov 09, 2016 7:41:28 PM SEVERE hudson.model.Project createTransientActions
      Error loading trigger.
      java.lang.NullPointerException
      	at hudson.model.Project.createTransientActions(Project.java:266)
      	at hudson.model.AbstractProject.updateTransientActions(AbstractProject.java:756)
      	at hudson.model.AbstractProject.save(AbstractProject.java:307)
      	at hudson.model.Job.addProperty(Job.java:519)
      	at hudson.model.AbstractProject.addProperty(AbstractProject.java:786)
      	at org.jvnet.hudson.plugins.shelveproject.ItemListenerImpl.addShelveProjectProperty(ItemListenerImpl.java:48)
      	at org.jvnet.hudson.plugins.shelveproject.ItemListenerImpl.onLoaded(ItemListenerImpl.java:27)
      	at jenkins.model.Jenkins.<init>(Jenkins.java:995)
      	at hudson.model.Hudson.<init>(Hudson.java:85)
      	at hudson.model.Hudson.<init>(Hudson.java:81)
      	at hudson.WebAppMain$3.run(WebAppMain.java:231)
      
      Nov 09, 2016 7:42:56 PM SEVERE hudson.triggers.SafeTimerTask run
      Timer task com.cloudbees.jenkins.Cleaner@74a739c5 failed
      java.lang.NullPointerException
      	at hudson.model.Descriptor.toMap(Descriptor.java:989)
      	at hudson.util.DescribableList.toMap(DescribableList.java:151)
      	at hudson.model.AbstractProject.getTriggers(AbstractProject.java:1617)
      	at org.jenkinsci.plugins.github.util.JobInfoHelpers.triggerFrom(JobInfoHelpers.java:96)
      	at org.jenkinsci.plugins.github.util.JobInfoHelpers$1.apply(JobInfoHelpers.java:39)
      	at org.jenkinsci.plugins.github.util.JobInfoHelpers$1.apply(JobInfoHelpers.java:37)
      	at org.jenkinsci.plugins.github.webhook.subscriber.DefaultPushGHEventSubscriber.isApplicable(DefaultPushGHEventSubscriber.java:45)
      	at org.jenkinsci.plugins.github.extension.GHEventsSubscriber$2.applyNullSafe(GHEventsSubscriber.java:100)
      	at org.jenkinsci.plugins.github.extension.GHEventsSubscriber$2.applyNullSafe(GHEventsSubscriber.java:97)
      	at org.jenkinsci.plugins.github.util.misc.NullSafePredicate.apply(NullSafePredicate.java:19)
      	at com.google.common.collect.Iterators$7.computeNext(Iterators.java:649)
      	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
      	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
      	at com.google.common.collect.Lists.newArrayList(Lists.java:138)
      	at com.google.common.collect.Lists.newArrayList(Lists.java:119)
      	at org.jenkinsci.plugins.github.util.FluentIterableWrapper.toList(FluentIterableWrapper.java:137)
      	at org.jenkinsci.plugins.github.util.JobInfoHelpers$4.apply(JobInfoHelpers.java:78)
      	at org.jenkinsci.plugins.github.util.JobInfoHelpers$4.apply(JobInfoHelpers.java:75)
      	at com.google.common.collect.Iterators$7.computeNext(Iterators.java:649)
      	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
      	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
      	at com.google.common.collect.Iterators$8.hasNext(Iterators.java:807)
      	at com.google.common.collect.Iterables$3.hasNext(Iterables.java:504)
      	at com.google.common.collect.Iterators$5.hasNext(Iterators.java:543)
      	at com.google.common.collect.Lists.newArrayList(Lists.java:138)
      	at com.google.common.collect.Lists.newArrayList(Lists.java:119)
      	at org.jenkinsci.plugins.github.util.FluentIterableWrapper.toList(FluentIterableWrapper.java:137)
      	at com.cloudbees.jenkins.Cleaner.doRun(Cleaner.java:67)
      	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:50)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
      	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
      	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      
      Nov 09, 2016 7:45:00 PM WARNING hudson.triggers.Trigger$Cron doRun
      Cron thread throw an exception
      java.lang.NullPointerException
      	at hudson.model.Descriptor.toMap(Descriptor.java:989)
      	at hudson.util.DescribableList.toMap(DescribableList.java:151)
      	at hudson.model.AbstractProject.getTriggers(AbstractProject.java:1617)
      	at hudson.triggers.Trigger.checkTriggers(Trigger.java:270)
      	at hudson.triggers.Trigger$Cron.doRun(Trigger.java:226)
      	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:50)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
      	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
      	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      

          [JENKINS-39632] Unselecting "Build when a change is pushed to GitHub" results in NullPointerException and breaks all builds in Jenkins

          Cool, but how did you get that <null/> in config?
          Can't reproduce it

          Kirill Merkushev added a comment - Cool, but how did you get that <null/> in config? Can't reproduce it

          Oleg Nenashev added a comment -

          I would guess that the null trigger comes from the deserialization logic. One of the cases is a deletion of a plugin, which defines a trigger. In such case you may get such null in lists if you do not check "Manage Old Data", cleanup it and restart the instance

          Oleg Nenashev added a comment - I would guess that the null trigger comes from the deserialization logic. One of the cases is a deletion of a plugin, which defines a trigger. In such case you may get such null in lists if you do not check "Manage Old Data", cleanup it and restart the instance

          lanwen oleg_nenashev It appears removing the <null/> from the config fixes the issue, but we don't have any old data to clean up. It looks like it's adding it when the checkbox is toggled for some reason. We did have a number of plugins installed that we've since removed when this problem started happening, but all old data has long since been cleaned up.

          Chris Coggburn added a comment - lanwen oleg_nenashev It appears removing the <null/> from the config fixes the issue, but we don't have any old data to clean up. It looks like it's adding it when the checkbox is toggled for some reason. We did have a number of plugins installed that we've since removed when this problem started happening, but all old data has long since been cleaned up.

          at com.cloudbees.jenkins.Cleaner.doRun(Cleaner.java:67) what is this?

          Kanstantsin Shautsou added a comment - at com.cloudbees.jenkins.Cleaner.doRun(Cleaner.java:67) what is this?

          Unmarshalling for job which contains null tag

          Kirill Merkushev added a comment - Unmarshalling for job which contains null tag

            lanwen Kirill Merkushev
            noderat Chris Coggburn
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              Created:
              Updated: