make access sql repository accounting from JMX working

When we make access to the repository accounting through JMX, we've got an NPE when the repository is about to be
initialized. The symptom at client side is an error about security. But that error is reported as the ClientException
cannot be unmarshalled at client side (a JConsole for instance). The stack trace is not logged in the error log, but
we can see it using wireshark. I will attach the dump tomorror or on monday.