javax.servlet.ServletException: java.lang.NullPointerException

Jenkins JIRA | jose lopez | 2 years ago
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  1. 0

    I hit the following exception when trying to save my changes on the configuration UI (Manage Jenkins --> Configure System) 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.Stapler.invoke(Stapler.java:649) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96) at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920) at java.lang.Thread.run(Thread.java:736) Caused by: java.lang.NullPointerException at jenkins.model.Jenkins.getLabelAtom(Jenkins.java:1596) at jenkins.model.Jenkins.getSelfLabel(Jenkins.java:2609) at hudson.model.Node.getAssignedLabels(Node.java:269) at hudson.model.Label.matches(Label.java:174) at hudson.model.Label.getNodes(Label.java:199) at hudson.model.Label.isEmpty(Label.java:418) at jenkins.model.Jenkins.trimLabels(Jenkins.java:1737) at jenkins.model.Jenkins.access$000(Jenkins.java:308) at jenkins.model.Jenkins$CloudList.onModified(Jenkins.java:496) at hudson.util.PersistedList.replaceBy(PersistedList.java:85) at hudson.util.DescribableList.rebuildHetero(DescribableList.java:203) at jenkins.model.GlobalCloudConfiguration.configure(GlobalCloudConfiguration.java:23) at jenkins.model.Jenkins.configureDescriptor(Jenkins.java:2915) at jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2878) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:600) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) ... 46 more

    Jenkins JIRA | 2 years ago | jose lopez
    javax.servlet.ServletException: java.lang.NullPointerException
  2. 0

    I hit the following exception when trying to save my changes on the configuration UI (Manage Jenkins --> Configure System) 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.Stapler.invoke(Stapler.java:649) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96) at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920) at java.lang.Thread.run(Thread.java:736) Caused by: java.lang.NullPointerException at jenkins.model.Jenkins.getLabelAtom(Jenkins.java:1596) at jenkins.model.Jenkins.getSelfLabel(Jenkins.java:2609) at hudson.model.Node.getAssignedLabels(Node.java:269) at hudson.model.Label.matches(Label.java:174) at hudson.model.Label.getNodes(Label.java:199) at hudson.model.Label.isEmpty(Label.java:418) at jenkins.model.Jenkins.trimLabels(Jenkins.java:1737) at jenkins.model.Jenkins.access$000(Jenkins.java:308) at jenkins.model.Jenkins$CloudList.onModified(Jenkins.java:496) at hudson.util.PersistedList.replaceBy(PersistedList.java:85) at hudson.util.DescribableList.rebuildHetero(DescribableList.java:203) at jenkins.model.GlobalCloudConfiguration.configure(GlobalCloudConfiguration.java:23) at jenkins.model.Jenkins.configureDescriptor(Jenkins.java:2915) at jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2878) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:600) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) ... 46 more

    Jenkins JIRA | 2 years ago | jose lopez
    javax.servlet.ServletException: java.lang.NullPointerException
  3. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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  5. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
  6. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at jenkins.model.Jenkins.getLabelAtom()
    2. jenkins.model
      Jenkins.getSelfLabel
      1. jenkins.model.Jenkins.getLabelAtom(Jenkins.java:1596)
      2. jenkins.model.Jenkins.getSelfLabel(Jenkins.java:2609)
      2 frames
    3. Hudson
      Label.isEmpty
      1. hudson.model.Node.getAssignedLabels(Node.java:269)
      2. hudson.model.Label.matches(Label.java:174)
      3. hudson.model.Label.getNodes(Label.java:199)
      4. hudson.model.Label.isEmpty(Label.java:418)
      4 frames
    4. jenkins.model
      Jenkins$CloudList.onModified
      1. jenkins.model.Jenkins.trimLabels(Jenkins.java:1737)
      2. jenkins.model.Jenkins.access$000(Jenkins.java:308)
      3. jenkins.model.Jenkins$CloudList.onModified(Jenkins.java:496)
      3 frames
    5. Hudson
      DescribableList.rebuildHetero
      1. hudson.util.PersistedList.replaceBy(PersistedList.java:85)
      2. hudson.util.DescribableList.rebuildHetero(DescribableList.java:203)
      2 frames
    6. jenkins.model
      Jenkins.doConfigSubmit
      1. jenkins.model.GlobalCloudConfiguration.configure(GlobalCloudConfiguration.java:23)
      2. jenkins.model.Jenkins.configureDescriptor(Jenkins.java:2915)
      3. jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2878)
      3 frames
    7. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      4. java.lang.reflect.Method.invoke(Method.java:600)
      4 frames
    8. Stapler
      Stapler.service
      1. org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
      2. org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
      3. org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
      4. org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121)
      5. org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
      6. org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
      7. org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
      8. org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
      9. org.kohsuke.stapler.Stapler.service(Stapler.java:238)
      9 frames
    9. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
      1 frame
    10. Jetty
      ServletHandler$CachedChain.doFilter
      1. org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686)
      2. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)
      2 frames
    11. Hudson
      PluginServletFilter$1.doFilter
      1. hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
      1 frame
    12. hudson.plugins.greenballs
      GreenBallFilter.doFilter
      1. hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58)
      1 frame
    13. Hudson
      PluginServletFilter.doFilter
      1. hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)
      2. hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
      2 frames
    14. Jetty
      ServletHandler$CachedChain.doFilter
      1. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
      1 frame
    15. Hudson
      CrumbFilter.doFilter
      1. hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
      1 frame
    16. Jetty
      ServletHandler$CachedChain.doFilter
      1. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
      1 frame
    17. Hudson
      HudsonFilter.doFilter
      1. hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
      2. hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
      3. hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
      3 frames
    18. Jetty
      ServletHandler$CachedChain.doFilter
      1. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
      1 frame
    19. Stapler
      CompressionFilter.doFilter
      1. org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
      1 frame
    20. Jetty
      ServletHandler$CachedChain.doFilter
      1. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
      1 frame
    21. Hudson
      CharacterEncodingFilter.doFilter
      1. hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
      1 frame
    22. Jetty
      ServletHandler$CachedChain.doFilter
      1. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
      1 frame
    23. Stapler
      DiagnosticThreadNameFilter.doFilter
      1. org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
      1 frame
    24. Jetty
      AsyncHttpConnection.handle
      1. org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474)
      2. org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
      3. org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
      4. org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)
      5. org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
      6. org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
      7. org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
      8. org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
      9. org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
      10. org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
      11. org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
      12. org.eclipse.jetty.server.Server.handle(Server.java:370)
      13. org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
      14. org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
      15. org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
      16. org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
      17. org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
      18. org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
      18 frames
    25. GWT dev
      SelectChannelEndPoint$1.run
      1. org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
      2. org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
      2 frames
    26. winstone
      BoundedExecutorService$1.run
      1. winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
      1 frame
    27. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
      3. java.lang.Thread.run(Thread.java:736)
      3 frames