User defined listener org.apache.struts2.tiles.StrutsTilesListener failed: java.lang.NullPointerExce

[Swapneel Killekar]

I am unable to deploy my web application which contains Struts2.1.8 and Tiles 2.0.6

I get the following error when i try to start the weblogic server.

<Nov 20, 2011 11:07:38 AM IST> <Warning> <HTTP> <BEA-101162> <User defined listener org.apache.struts2.tiles.StrutsTilesListener failed: java.lang.NullPointerException.
java.lang.NullPointerException
at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
at org.apache.commons.digester.Digester.parse(Digester.java:1887)
at org.apache.tiles.definition.digester.DigesterDefinitionsReader.read(DigesterDefinitionsReader.java:267)
at org.apache.tiles.definition.UrlDefinitionsFactory.readDefinitions(UrlDefinitionsFactory.java:286)
at org.apache.tiles.definition.UrlDefinitionsFactory.init(UrlDefinitionsFactory.java:130)
Truncated. see log file for complete stacktrace
>
<Nov 20, 2011 11:07:39 AM IST> <Error> <Deployer> <BEA-149265> <Failure occurred in the execution of deployment request with ID '1321767449300' for task '0'. Error is: 'weblogic.application.ModuleException: '
weblogic.application.ModuleException:
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1373)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:468)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
Truncated. see log file for complete stacktrace
java.lang.NullPointerException
at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
at org.apache.commons.digester.Digester.parse(Digester.java:1887)
at org.apache.tiles.definition.digester.DigesterDefinitionsReader.read(DigesterDefinitionsReader.java:267)
at org.apache.tiles.definition.UrlDefinitionsFactory.readDefinitions(UrlDefinitionsFactory.java:286)
at org.apache.tiles.definition.UrlDefinitionsFactory.init(UrlDefinitionsFactory.java:130)
Truncated. see log file for complete stacktrace
>
<Nov 20, 2011 11:07:39 AM IST> <Error> <Deployer> <BEA-149202> <Encountered an exception while attempting to commit the 9 task for the application '_appsdir_POC-SSH_dir'.>
<Nov 20, 2011 11:07:39 AM IST> <Warning> <Deployer> <BEA-149004> <Failures were detected while initiating deploy task for application '_appsdir_POC-SSH_dir'.>
<Nov 20, 2011 11:07:39 AM IST> <Warning> <Deployer> <BEA-149078> <Stack trace for message 149004
weblogic.application.ModuleException:
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1373)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:468)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
Truncated. see log file for complete stacktrace
java.lang.NullPointerException
at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
at org.apache.commons.digester.Digester.parse(Digester.java:1887)
at org.apache.tiles.definition.digester.DigesterDefinitionsReader.read(DigesterDefinitionsReader.java:267)
at org.apache.tiles.definition.UrlDefinitionsFactory.readDefinitions(UrlDefinitionsFactory.java:286)
at org.apache.tiles.definition.UrlDefinitionsFactory.init(UrlDefinitionsFactory.java:130)
Truncated. see log file for complete stacktrace

Below my tiles.xml and web.xml, kindly let me know what i am doing wrong.

<!DOCTYPE tiles-definitions PUBLIC "-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN" "/tiles-config_2_0.dtd"> <tiles-definitions> <definition name="baseLayout" template="/util/baseLayout.jsp"> <put-attribute name="title" value="Template"/> <put-attribute name="header" value="/util/header.jsp"/> <put-attribute name="body" value="/util/body.jsp"/> <put-attribute name="footer" value="/util/footer.jsp"/> </definition> <definition name="loginPage" extends="baseLayout"> <put-attribute name="title" value="Welcome to Login Page"/> <put-attribute name="body" value="/login/Login.jsp"/> </definition> </tiles-definitions>


web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping> <context-param> <param-name> org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG</param-name> <param-value>/WEB-INF/tiles.xml</param-value> </context-param> <listener> <listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class> </listener> </web-app>

Regards,
Swapneel