problem after registering a custom privilege

[Malzer Ferdinand OSP sIT]

Hello,
I try to register a custom privileg with the following code.


            session = repository.login(new SimpleCredentials(user, 
pwd.toCharArray()), workspace);
            JackrabbitWorkspace jrws = (JackrabbitWorkspace) 
session.getWorkspace();
            PrivilegeManager privMgr = jrws.getPrivilegeManager();
            privMgr.registerPrivilege("gcms_role_chief", false, new String[] 
{});
            session.save();

The code seems to work fine (it runs with no exception).
The next time when I try to access the repository I get the following exception:

Exception in thread "main" javax.jcr.RepositoryException: Duplicate entry for 
custom privilege with name {}gcms_role_chief
        at 
org.apache.jackrabbit.core.security.authorization.PrivilegeRegistry$CustomPrivilegeStore.load(PrivilegeRegistry.java:1078)
        at 
org.apache.jackrabbit.core.security.authorization.PrivilegeRegistry$CustomPrivilegeStore.access$100(PrivilegeRegistry.java:1046)
        at 
org.apache.jackrabbit.core.security.authorization.PrivilegeRegistry.<init>(PrivilegeRegistry.java:165)
        at 
org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:273)
        at 
org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:589)
        at 
at.spardat.jackrabbit.test.DumpRepository.main(DumpRepository.java:46)

Does somebody know how I could register a custom privilege the right way?

Thx in advance!
ferry malzer