Re: Re: Re: Strange ClassCastException when looking up SLSB RemoteHome from "external" .war webapp

Can you try with local.registry set to false ?
--G

Le 19/01/2011 10:32, Hans J. Prueller a écrit :
> Guillaume,
>
> thank you. I know about the fact you mentioned
>
> >>That means that you can have the same class (same name, same 
> bytecode, same everything), loaded by 2 different classloaders
> >> but that will be incompatible (you cannot cast one of them into the 
> other).
>
> and I already "suspected" a classloader issue being responsible for 
> the classcast problem ;-)  I already tried to remove the EJB API from
> the WEB-INF/lib of the axis2 webapp, but that didn't solve the problem 
> but lead to a classnotfound or noclassdeffound error.
>
> I did not change carol.properites - I am simply using JOnAS 5.1.5 with 
> its default values!
>
> carol.jvm.rmi.local.call = false
> carol.jvm.rmi.local.registry = true
>
> regards,
> Hans
>
> Am Mittwoch, den 19.01.2011, 10:25 +0100 schrieb Guillaume Sauthier:
>> Hi Hans
>>
>> A Class object is defined by its name AND the ClassLoader that loaded it.
>> That means that you can have the same class (same name, same 
>> bytecode, same everything), loaded by 2 different classloaders but 
>> that will be incompatible (you cannot cast one of them into the other).
>>
>> So in your case, you have 2 places where your EJB API is available: 
>> inside the EAR and inside the WEB-INF/lib of the axis2 webapp. So 
>> they are not sharing the same Class definition for your EJB API.
>> What seems to happen is that JNDI returns an instance coming from 
>> your EAR.
>>
>> Did you change your carol.properties ?
>> Can you show me the value of the following properties:
>> * carol.jvm.rmi.local.call
>> * carol.jvm.rmi.local.registry
>>
>> --G
>>
>> Le 19/01/2011 08:10, Hans J. Prueller a écrit :
>>> Hi,
>>>
>>> we are still working on migrating our JOnAS 4.10 based Java EE 1.4 
>>> EAR to JOnAS 5.1.5. One (seems really to be the last) open issue
>>> we have is the following:
>>>
>>> Our Java EE 1.4 Application is packaged as EAR, it contains the 
>>> EjB-JAR.JAR containing the EJB 2.1 SLSB's. It also contains 2 or 3
>>> webapps as .WAR file  (war files within the EAR file), which are 
>>> looking up the remote homes and remote interfaces of the SLSB's
>>> which works fine.
>>>
>>> Then we have another webapp, based on AXIS2 which provides 
>>> webservices to external clients. The axis2 war file provies 
>>> web-services,
>>> which also lookup the Remote Homes and Remote Interfaces of some of 
>>> the SLSB's contained in the ear mentioned above.
>>>
>>> Therefore the remote home and remote interface stubs are packaged as 
>>> .jar file in web-inf/lib of the axis2.war webapp.
>>>
>>> Basically this is all as it is meant to be by the Java EE standard, 
>>> this is what remote home and remote interfaces of EJB's are for, and it
>>> really works fine and smooth on JOnAS 4.10.X
>>>
>>> When we now deploy our .EAR file and the axis2.WAR on JOnAS 5.1.5    
>>> and  make a test-invocation of the web-service, we get a really strange
>>> ClassCastException:
>>>
>>> *Cannot cast 
>>> 'org.ow2.jonas_gen.com.lbslogics.ims.guardian.interfaces.JOnASGuardian2Bean1797447629Home' 
>>> in 'com.lbslogics.ims.guardian.interfaces.Guardian2Home'*
>>>
>>> When I check the source file (JOnASGuardian2Bean1797447629Home) 
>>> generated by GenIC, it explicitly says:
>>>
>>> public class JOnASGuardian2Bean1797447629Home extends JSessionHome 
>>> *implements com.lbslogics.ims.guardian.interfaces.Guardian2Home *{
>>>
>>>     // JOnAS version used to deploy
>>>     public static final String JONAS_VERSION = "5.1.5";
>>>
>>> [ ..... ]
>>>
>>>
>>> ======>  so, the cast has to be possible.  (and btw this works fine 
>>> with all other .WAR's contained in the EAR itself doing the same).  
>>> So why or what
>>> is the problem here ???
>>>
>>> Any ideas are appreciated because we cannot migrate our production 
>>> servers unless also the webservices are working!
>>>
>>> regards,
>>> Hans
>>>
>

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