java.lang.NullPointerException

javatpoint.com | 6 months ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.commons.digester.Digester.getXMLReader()
    2. Commons Digester
      Digester.parse
      1. org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
      2. org.apache.commons.digester.Digester.parse(Digester.java:1887)
      2 frames
    3. Tiles - Core Library
      DigesterDefinitionsReader.read
      1. org.apache.tiles.definition.digester.DigesterDefinitionsReader.read(DigesterDefinitionsReader.java:267)
      1 frame
    4. Tiles
      UrlDefinitionsFactory.init
      1. org.apache.tiles.definition.UrlDefinitionsFactory.readDefinitions(UrlDefinitionsFactory.java:286)
      2. org.apache.tiles.definition.UrlDefinitionsFactory.init(UrlDefinitionsFactory.java:130)
      2 frames
    5. Tiles - Core Library
      TilesContainerFactory.createContainer
      1. org.apache.tiles.impl.BasicTilesContainer.initializeDefinitionsFactory(BasicTilesContainer.java:406)
      2. org.apache.tiles.impl.BasicTilesContainer.init(BasicTilesContainer.java:130)
      3. org.apache.tiles.factory.TilesContainerFactory.initializeContainer(TilesContainerFactory.java:232)
      4. org.apache.tiles.factory.TilesContainerFactory.createTilesContainer(TilesContainerFactory.java:198)
      5. org.apache.tiles.factory.TilesContainerFactory.createContainer(TilesContainerFactory.java:163)
      5 frames
    6. Tiles - Servlet support
      TilesListener.createContainer
      1. org.apache.tiles.web.startup.TilesListener.createContainer(TilesListener.java:90)
      1 frame
    7. Struts 2 Tiles Plugin
      StrutsTilesListener.createContainer
      1. org.apache.struts2.tiles.StrutsTilesListener.createContainer(StrutsTilesListener.java:68)
      1 frame
    8. Tiles - Servlet support
      TilesListener.contextInitialized
      1. org.apache.tiles.web.startup.TilesListener.contextInitialized(TilesListener.java:57)
      1 frame
    9. Glassfish Core
      Catalina.start
      1. org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)
      2. org.apache.catalina.core.StandardContext.start(StandardContext.java:4334)
      3. org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
      4. org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
      5. org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
      6. org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
      7. org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
      8. org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
      9. org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
      10. org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
      11. org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
      12. org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
      13. org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
      14. org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
      15. org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
      16. org.apache.catalina.core.StandardService.start(StandardService.java:516)
      17. org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
      18. org.apache.catalina.startup.Catalina.start(Catalina.java:566)
      18 frames
    10. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:601)
      4 frames