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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

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    • 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)
      

            lanwen Kirill Merkushev
            noderat Chris Coggburn
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              Created:
              Updated: