ClassCastException and JDK 1.4.1

[n_ton]

Hi,

I'm running into a problem that I think may be a compatibility issue
with JBoss and JDK 1.4.1.

First I ran my EJBs on JBoss 3.0.4 on RedHat 7.3 using JDK 1.3.1_06.
That all worked fine.

When I switched to JDK 1.4.1, I got the following error from my test case:

[java] ..F
[java] Time: 0.956
[java] There was 1 failure:
[java] 1) testTokenReplace(com.acme.test.ejb.rules.RulesEJBTest)junit.framework.AssertionFailedError: testTokenReplace(): RemoteException: RemoteException occurred in server thread; nested exception is:
[java] java.rmi.ServerException: RuntimeException; nested exception is:
[java] java.lang.ClassCastException
[java] at com.acme.test.ejb.rules.RulesEJBTest.testTokenReplace(Unknown Source)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

[java] FAILURES!!!
[java] Tests run: 2, Failures: 1, Errors: 0

[java] Java Result: 1



and the following error from the JBoss logging console:

8:03:06,425 ERROR [LogInterceptor] RuntimeException:
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.acme.ejb.EJBUtil.getHome(Unknown Source)
at com.acme.ejb.rules.RulesEJB.tokenReplace(Unknown Source)
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:324)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:660)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:77)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:107)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:178)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:60)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:130)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:204)
at org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:313)
at org.jboss.ejb.Container.invoke(Container.java:712)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:382)
at sun.reflect.GeneratedMethodAccessor41.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:536)


I have a bunch of EJBs and get a bunch of ClassCastExceptions like this.
The interesting thing is that the Exceptions don't occur on the same
objects in each run. It's not consistent.

Is there something special that needs to be done with JBoss 3.0.4 to
work well with JDK 1.4.x? I did a search about JDK 1.4 and JBoss 3
compatibility, but didn't find a definitive answer as to whether
they work well together all the time.


Thanx for your time.

[alvaro]

Hi
I have in 3.0.4, Linux, JVM 1.3.1 - Blackdown
A session Bean packaged in a jar file (Session01) is calling
one entity bean packaged in another jar file Entity01 .
Works great.
I have one client in Tomcat in another machine.

If I hot-deploy Session01.jar, it's work. But hot-deploy
Entity01
get
20:34:59,449 ERROR [LogInterceptor] RuntimeException:
java.lang.ClassCastException: $Proxy156
at
com.da.motion.testeAlvaro.model.statelessEJB.SManterTesteEJB.find
All(SManterTes
teEJB.java:75)

The solution is to hot-deploy Entity01 and Session01 works fine.
is it ok with 1.3.1?

What do you doing?


Alvaro

[n_ton]

I'm not exactly sure what your point is.

I only have one ear with one war and one jar. All my beans are in the one jar. After deploying my ear, I run my tests via JUnit with some EJB client code and get the error above.