[OS-webwork] Problem chaining

[Les Stroud]

I’ve run into a problem when trying to chain from one action to another.  Whenever I try to load the following configuration, I get a NullPointerException in the FilterDispatcher(195).  However, when I run the same configuration via unit tests (using ActionProxy) it works fine – chaining the actions correctly.  The stack trace is below the xwork.xml. Can any body help?? <!-- ======================  xwork.xml =================================--> <!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN" "http://www.opensymphony.com/xwork/xwork-1.0.dtd"> <xwork>        <package name="default">               <result-types>                      <result-type name="dispatcher" class="com.opensymphony.webwork.dispatcher.ServletDispatcherResult"/>                      <result-type name="redirect" class="com.opensymphony.webwork.dispatcher.ServletRedirectResult"/>                      <result-type name="velocity" class="com.opensymphony.webwork.dispatcher.VelocityResult"/>                      <result-type name="chain" class="com.opensymphony.xwork.ActionChainResult"/>               </result-types>               <interceptors>                      <interceptor name="timer" class="com.opensymphony.xwork.interceptor.TimerInterceptor"/>                      <interceptor name="logger" class="com.opensymphony.xwork.interceptor.LoggingInterceptor"/>                      <interceptor name="chain" class="com.opensymphony.xwork.interceptor.ChainingInterceptor"/>                      <interceptor name="static-params" class="com.opensymphony.xwork.interceptor.StaticParametersInterceptor"/>                      <interceptor name="params" class="com.opensymphony.xwork.interceptor.ParametersInterceptor"/>                      <interceptor name="validator" class="com.opensymphony.xwork.validator.ValidationInterceptor"/>                      <interceptor name="component" class="com.opensymphony.xwork.interceptor.component.ComponentInterceptor"/>                      <interceptor name="token" class="com.opensymphony.webwork.interceptor.TokenInterceptor"/>                      <interceptor name="token-session" class="com.opensymphony.webwork.interceptor.TokenSessionStoreInterceptor"/>                      <interceptor-stack name="defaultStack">                            <interceptor-ref name="timer"/>                            <interceptor-ref name="logger"/>                            <interceptor-ref name="component"/>                            <!--                <interceptor-ref name="static-params"/>-->                            <interceptor-ref name="params"/>                            <interceptor-ref name="validator"/>                      </interceptor-stack>               </interceptors>               <action name="ListAllPeople" class="com.les.mydirector.actions.teammanagement.ListAllPeopleAction">                      <result name="success" type="dispatcher">                            <param name="location">teammanagement/listAllPeople.jsp</param>                      </result>                      <interceptor-ref name="defaultStack"/>               </action>                             <action name="AddPerson" class="com.les.mydirector.actions.teammanagement.AddPersonAction">                      <result name="success" type="chain">                            <param name="actionName">ListAllPeople</param>                      </result>                      <interceptor-ref name="defaultStack"/>               </action>        </package> </xwork>   <!-- ============================ Stack Trace ======================================== -->   2003-06-08 22:10:28 StandardContext[/myapp]: Exception starting filter webwork java.lang.NullPointerException                 at com.opensymphony.webwork.dispatcher.FilterDispatcher.getActionResultConfig(FilterDispatcher.java:195)                 at com.opensymphony.webwork.dispatcher.FilterDispatcher.init(FilterDispatcher.java:132)                 at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:266)                 at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:327)                 at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:120)                 at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3158)                 at org.apache.catalina.core.StandardContext.start(StandardContext.java:3602)                 at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)                 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)                 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579)                 at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)                 at org.apache.catalina.core.StandardHost.install(StandardHost.java:772)                 at org.apache.catalina.servlets.ManagerServlet.deploy(ManagerServlet.java:564)                 at org.apache.catalina.servlets.ManagerServlet.doPut(ManagerServlet.java:413)                 at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)                 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)                 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)                 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)                 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)                 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)                 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)                 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)                 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:551)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)                 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)                 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)                 at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)                 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)                 at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)                 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)                 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)                 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)                 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)                 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)                 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)                 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)                 at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)                 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)                 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)                 at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)                 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)                 at java.lang.Thread.run(Thread.java:536)