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  1. Jenkins
  2. JENKINS-39915

NullPointerException when changing Build Trigger from build periodically to poll SCM

    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Critical
    • Resolution: Cannot Reproduce
    • Component/s: docker-slaves-plugin
    • Labels:
      None
    • Environment:
      Jenkins LTS 2.19.3
      Oracle JRE 1.8.0_102 (64-bit)
      RHEL 6
    • Similar Issues:

      Description

      To reproduce:

      1. Create a frestyle project
      2. Configure to build periodically @midnight
      3. Save
      4. Configure again
      5. Uncheck build periodically
      6. Check Poll SCM and enter @midnight
      7. Save

      Stack trace:

      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$5.doDispatch(MetaClass.java:233)
      	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
      	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
      	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:135)
      	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:59)
      	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
      	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:126)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
      	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:80)
      	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$1.run(BoundedExecutorService.java:77)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	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:62)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:324)
      	at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:52)
      	at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)
      	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:167)
      	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:100)
      	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)
      	... 60 more
      

      ALL subsequent attempts to change configuration fail with NPE as above.

      There is a new <null/> line in the project's config.xml:

      <?xml version='1.0' encoding='UTF-8'?>                                          
      <project>                                                                       
      ...
        <triggers>                                                                    
          <null/>                                                                     
      ...        
        </triggers>
      ...                                                              
      </project>                                                                      
      

      I was able to get this error also when Git was enabled as the SCM, but it is simpler to reproduce as above.

        Attachments

          Activity

          Hide
          cpadgett Alex Padgett added a comment -

          Sadly, unable to reproduce this error on a vanilla Docker container of jenkins:latest (2.19.3). So I suspect it is related to installed plug-ins or configuration.... Will keep trying.

          Show
          cpadgett Alex Padgett added a comment - Sadly, unable to reproduce this error on a vanilla Docker container of jenkins:latest (2.19.3). So I suspect it is related to installed plug-ins or configuration.... Will keep trying.
          Hide
          cpadgett Alex Padgett added a comment -

          Requires the Docker Slaves plug-in to be installed.

          To reproduce using Docker jenkins:latest (2.19.3):

          1. Run container
          2. Choose to install common plug-ins
          3. install Docker Slaves plug-in
          4. Follow remaining steps in description.
          Show
          cpadgett Alex Padgett added a comment - Requires the Docker Slaves plug-in to be installed. To reproduce using Docker jenkins:latest (2.19.3): Run container Choose to install common plug-ins install Docker Slaves plug-in Follow remaining steps in description.
          Hide
          cpadgett Alex Padgett added a comment -

          Uninstalling the Docker Slaves and Docker Commons plug-ins solves the issue.

          Show
          cpadgett Alex Padgett added a comment - Uninstalling the Docker Slaves and Docker Commons plug-ins solves the issue.

            People

            • Assignee:
              ndeloof Nicolas De Loof
              Reporter:
              cpadgett Alex Padgett
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: