[Installation, Configuration & Deployment] - ClassCastException during startup if ear is used
by jyoonyang
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
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19 years, 8 months
[JBoss Seam] - Accessessing Other session contexts from an application scop
by modoc
I'm just starting to teach myself seam, so forgive me if this is a silly question, however, the framework that I am most experienced in ATG Dynamo has colored my perspective somewhat.
Can I gain access to a specific session context in order to resolve a session scoped seam component from an application scope service?
Here is what I have in mind:
A user can click on a button and ask to be notified of certain types of messages (not JMS messages). The user is given a temp id, which can be used to route individual messages to the user (think of a instant messaging system within a website, although that's not really the actual issue). I was envisioning a application scope service which would hand out these ids, and record in a map the tempId->user session mapping. Then I'd want the messaging manager (also application scoped) to be able to get a message in, lookup the addressee in the Map, and get a reference to the session scoped message queue component for that user's session, and add the message into a List of that component.
Is there a slick way to do that using Seam? I don't want to use a database or jms or anything like that. I'm just curious if I can lookup components from another context using a key or something?
Devon
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19 years, 8 months