3 Replies Latest reply on Oct 20, 2006 3:11 AM by J Yang

    ClassCastException during startup if ear is used

    J Yang Newbie

      Hi

      I have a war inside an ear. During startup, I get a ClassCastException, which does not occur if I deploy the war without wrapping inside an ear.

      I have experiemented with other wars. The problem is consistent. Only difference is the class that gets this ClassCastException.

      It seems like some sort of class loader issue, but I don't know how to resolve this.

      Here are the contents of my ear:

      META-INF/
      META-INF/MANIFEST.MF
      mysar.sar
      mywar.war
      META-INF/jboss-app.xml
      META-INF/application.xml
      


      jboss-app.xml
      <!DOCTYPE jboss-app PUBLIC "-//JBoss//DTD J2EE Application 1.4//EN"
       "http://www.jboss.org/j2ee/dtd/jboss-app_4_0.dtd">
      <jboss-app>
       <loader-repository>myapp:loader=myear.ear</loader-repository>
       <module>
       <service>mysar.sar</service>
       </module>
      </jboss-app>
      


      application.xml
      <application xmlns="http://java.sun.com/xml/ns/j2ee" version="1.4"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://java.sun.com /xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/application_1_4.xsd">
      
      <display-name>My App</display-name>
       <module>
       <web>
       <web-uri>mywar.war</web-uri>
       <context-root>/test</context-root>
       </web>
       </module>
      </application>
      


      Exception stack
      19:13:50,291 ERROR [[/cas]] Servlet /cas threw load() exception
      java.lang.ClassCastException: org.jasig.cas.web.init.SafeDispatcherServlet
       at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1055)
       at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
       at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
       at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
       at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
       at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
       at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
       at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
       at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
       at org.apache.catalina.core.StandardContext.init(StandardContext.java:5116)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
       at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
       at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
       at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:297)
       at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:103)
       at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:371)
       at org.jboss.web.WebModule.startModule(WebModule.java:83)
       at org.jboss.web.WebModule.startService(WebModule.java:61)
       at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
       at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
       at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
       at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
       at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
       at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
       at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
       at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
       at $Proxy0.start(Unknown Source)
       at org.jboss.system.ServiceController.start(ServiceController.java:417)
       at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
       at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
       at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
       at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
       at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
       at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
       at $Proxy36.start(Unknown Source)
       at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:466)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
       at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
       at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
       at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
       at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
       at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
       at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
       at org.jboss.ws.server.WebServiceDeployer.start(WebServiceDeployer.java:117)
       at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:18
       at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
       at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
       at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
       at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
       at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
       at $Proxy37.start(Unknown Source)
       at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
       at org.jboss.deployment.MainDeployer.start(MainDeployer.java:997)
       at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
       at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
       at sun.reflect.GeneratedMethodAccessor51.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
       at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
       at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
       at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
       at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
       at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
       at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
       at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
       at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
       at $Proxy8.deploy(Unknown Source)
       at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
       at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:610)
       at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
       at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)
       at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)
      


      Thanks in advance,
      Jennifer