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

Oops I meant disabled (local.registry=false)
--G

Le 20/01/2011 13:54, Guillaume Sauthier a écrit :
> Yeah, I received it.
> just need some time to take a closer look at what carol is exactly 
> doing with this flag enabled :)
> --G
>
> Le 20/01/2011 12:47, Hans J. Prueller a écrit :
>> did you receive my last mail containing the full stack trace?
>>
>> any new information on this issue?
>>
>> regards,
>> hans
>>
>> Am Mittwoch, den 19.01.2011, 16:45 +0100 schrieb Guillaume Sauthier:
>>> Can you give us the full stack trace please ?
>>> --G
>>>
>>> Le 19/01/2011 16:42, Hans J. Prueller a écrit :
>>>> tried it out, classcast problem gone but another error occurs:
>>>>
>>>> *javax.naming.NamingException: Cannot perform lookup [Root 
>>>> exception is javax.naming.NameNotFoundException: Guardian2Home]*
>>>> at 
>>>> org.ow2.carol.jndi.intercept.spi.InterceptableContext.namingException(InterceptableContext.java:823)
>>>> at 
>>>> org.ow2.carol.jndi.intercept.spi.InterceptableContext.lookup(InterceptableContext.java:126)
>>>> at 
>>>> org.ow2.carol.jndi.spi.VirtualJNDILookup.lookup(VirtualJNDILookup.java:109)
>>>> at javax.naming.InitialContext.lookup(InitialContext.java:392)
>>>>
>>>> hans
>>>>
>>>>
>>>> Am Mittwoch, den 19.01.2011, 10:45 +0100 schrieb Guillaume Sauthier:
>>>>> 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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