java.lang.NullPointerException

GitHub | elharo | 7 months ago
  1. 0

    GSF server cannot load classes

    GitHub | 7 months ago | elharo
    java.lang.NullPointerException
  2. 0

    AppEngine Java multi-modules sample error on gcloud preview app run

    Google Groups | 2 years ago | Avanish Raju
    java.lang.NullPointerException
  3. Speed up your debug routine!

    Automated exception search integrated into your IDE

  4. 0

    Google App Engine + JSF 2 give the error

    Stack Overflow | 4 years ago | Shilendra Sharma
    java.lang.NullPointerException

    7 unregistered visitors
    Not finding the right solution?
    Take a tour to get the most out of Samebug.

    Tired of useless tips?

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.lang.Class.isAssignableFrom()
    2. Java RT
      Class.isAssignableFrom
      1. java.lang.Class.isAssignableFrom(Native Method)
      1 frame
    3. Jetty Server
      ServletHolder.doStart
      1. org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:256)
      1 frame
    4. Jetty Util
      AbstractLifeCycle.start
      1. org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
      1 frame
    5. Jetty Server
      WebAppContext.doStart
      1. org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685)
      2. org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
      3. org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
      4. org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
      5. org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
      5 frames
    6. Jetty Util
      AbstractLifeCycle.start
      1. org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
      1 frame
    7. Jetty Server
      HandlerWrapper.doStart
      1. org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
      1 frame
    8. Jetty Util
      AbstractLifeCycle.start
      1. org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
      1 frame
    9. Jetty Server
      Server.doStart
      1. org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
      2. org.mortbay.jetty.Server.doStart(Server.java:224)
      2 frames
    10. Jetty Util
      AbstractLifeCycle.start
      1. org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
      1 frame
    11. AppEngine Testing
      Modules.startup
      1. com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:271)
      2. com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:284)
      3. com.google.appengine.tools.development.AutomaticInstanceHolder.startUp(AutomaticInstanceHolder.java:26)
      4. com.google.appengine.tools.development.AbstractModule.startup(AbstractModule.java:87)
      5. com.google.appengine.tools.development.Modules.startup(Modules.java:105)
      5 frames
    12. com.google.appengine
      DevAppServer2Impl$1.run
      1. com.google.appengine.tools.development.devappserver2.DevAppServer2Impl.doStart(DevAppServer2Impl.java:242)
      2. com.google.appengine.tools.development.devappserver2.DevAppServer2Impl.access$000(DevAppServer2Impl.java:56)
      3. com.google.appengine.tools.development.devappserver2.DevAppServer2Impl$1.run(DevAppServer2Impl.java:208)
      4. com.google.appengine.tools.development.devappserver2.DevAppServer2Impl$1.run(DevAppServer2Impl.java:206)
      4 frames
    13. Java RT
      AccessController.doPrivileged
      1. java.security.AccessController.doPrivileged(Native Method)
      1 frame
    14. com.google.appengine
      StandaloneInstance.main
      1. com.google.appengine.tools.development.devappserver2.DevAppServer2Impl.start(DevAppServer2Impl.java:206)
      2. com.google.appengine.tools.development.devappserver2.StandaloneInstance$StartAction.apply(StandaloneInstance.java:128)
      3. com.google.appengine.tools.development.devappserver2.StandaloneInstance$StartAction.apply(StandaloneInstance.java:82)
      4. com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
      5. com.google.appengine.tools.development.devappserver2.StandaloneInstance.run(StandaloneInstance.java:66)
      6. com.google.appengine.tools.development.devappserver2.StandaloneInstance.main(StandaloneInstance.java:44)
      6 frames