[ http://jira.jboss.com/jira/browse/JBAS-793?page=history ]
Scott M Stark closed JBAS-793:
------------------------------
Resolution: Done
jboss allows for a non-traditional dodmain based class loading model.
If you want isolation it needs to be configured. Changes have been introduced
to simply adding isolated behavior so look into the 4.0.x series and its
updated support.
http://www.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases
http://www.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration
> ClassCastException with PortableRemoteObject.narrow using jb
> ------------------------------------------------------------
>
> Key: JBAS-793
> URL: http://jira.jboss.com/jira/browse/JBAS-793
> Project: JBoss Application Server
> Type: Bug
> Versions: JBossAS-3.2.6 Final
> Reporter: SourceForge User
> Assignee: Scott M Stark
> Priority: Critical
>
>
> SourceForge Submitter: kgilpin .
> I have 2 EJB applications which are each deployed with
> a jboss-app.xml file so that they will have separate
> classloader hierarchies. The reason for this is that
> the two applications share some common JAR files such
> as some base utilities, Hibernate beans, and 3rd party
> ones such as struts.
> Both applications have an EJB session bean which
> implements the same home and session interfaces. These
> beans register themselves in JNDI, and a common UI
> finds them in a generic manner and exposes a UI for
> invoking them (the session interface is IScriptRemote).
> The problem occurs when the first application looks up
> the IScriptRemote from the second application in the
> following code. A ClassCastException occurs on the last
> line you see here. Before I created the jboss-app.xml
> files, no exception occurred (but I had other problems
> with LinkerErrors).
> InitialContext ic = J2EEUtil.getInitialContext(port,
> principal, credentials);
> try {
> NamingEnumeration e = ic.listBindings(JNDI_SCRIPT_ROOT);
> while ( e.hasMoreElements() ) {
> Binding binding = (Binding)e.next();
> Object obj = binding.getObject();
> LOG.debug("Got object ", obj, " from binding ", binding);
> try {
> if ( obj instanceof EJBHome ) {
> IScriptRemoteHome home =
> (IScriptRemoteHome)PortableRemoteObject.narrow(obj,
> IScriptRemoteHome.class);
> The reported exception is:
> 15:24:30,609 WARN [Repository] Exception processing
> binding ReloadMetadataScriptHome:
> $Proxy44:ikp/script/ReloadMetadataScriptHomeHome
> java.lang.ClassCastException
> at
> com.sun.corba.se.internal.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:293)
> at
> javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:134)
> at com.ipi.script.Repository.findAll(Repository.java:102)
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