JCR-RMI - Java Runtime < 1.5

[Florian Ried]

Hi,

I'd like to use the JCR-RMI package on Websphere Application Server 5.1 
(see Deployment Model 3, JCR-RMI Server). After having registered the 
repository resource (see 
http://article.gmane.org/gmane.comp.apache.jackrabbit.devel/2726), I 
encountered some runtime version related problems. The Exception is:

om.ibm.websphere.naming.CannotInstantiateObjectException: Exception 
occurred while the JNDI NamingManager was processing a 
javax.naming.Reference object. Root exception is 
com.ibm.websphere.naming.CannotInstantiateObjectException: Exception 
occurred while the JNDI NamingManager was processing a 
javax.naming.Reference object. Root exception is java.lang.LinkageError: 
LinkageError while defining class: 
org.apache.jackrabbit.rmi.client.ClientRepositoryFactory Could not be 
defined due to: org/apache/jackrabbit/rmi/client/ClientRepositoryFactory 
(Unsupported major.minor version 49.0) This is often caused by having a 
class defined at multiple locations within the classloader hierarchy. 
Other potential causes include compiling against an older or newer 
version of the class that has an incompatible method signature. Dumping 
the current context classloader hierarchy: ==> indicates defining 
classloader ==>[0] [EMAIL PROTECTED] 
Local ClassPath: ...

I read, that the JCR-RMI packed is compiled against JDK 1.5. What will I 
have to do to use it with a JRE < 1.5 and the IBM runtime environment 
respectively?

Greetings.
-Florian