Hot-Deployment-Problem

[skidiver]

Hello there,

there's a problem with the hot deployment on JBoss 4.0.5.GA.
I deploy a ejb-jar that contains a simple stateless session bean und a simple entity bean (ejb3). First time i call a session bean's method it works fine. If i do some code changes and redeploy the jar, the same operation fails with the following client stacktrace:

[java] javax.ejb.EJBException: java.lang.IllegalArgumentException: Wrong target. class com.company.project.PersonFacadeBean for public com.company.project.PersonPK com.company.project.PersonFacadeBean.insertPerson(com.company.project.Person)
 [java] at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
 [java] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
 [java] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
 [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 [java] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
 [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
 [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
 [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
 [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
 [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
 [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
 [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
 [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
 [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
 [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
 [java] at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
 [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
 [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)

If i stop JBoss and restart it, the operation works fine. Same problem apears, if i delete the jar before reploying it. What's the problem ?

Thx, Malte

[alrubinger]

Looks more like when you updeploy your app, other code in there is still holding references to the undeployed files.

Check the section on hot redeployment in tha ClassLoading Wiki:

http://www.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases

This will help you to understand the classloading mechanism to properly package/scope your applications and get Hot Deployment working.

S,
ALR

[skidiver]

The same problem apears when i try the examples (http://sourceforge.net/project/showfiles.php?group_id=22866&package_id=187246) included in the JBoss workbook by Burke&Monson-Haefel

Malte

[skidiver]

I've done several tests. I seems that the problem only appears when a session bean's method ends with an exception (thrown by JBoss). If the method ends normally the redeploy using other code works fine.

Malte

[wolfc]

Please try it with EJB3 RC9 patch 1.