Unauthorized SRM 2.2 ping results in java.lang.NoSuchMethodException

Whilst digging around getting SRM to work, I found what looks like a bug in the SRM v2 implementation for the ping command.

It seems that, if an unauthorised user attempts to do an SRM-ping, the server-side exception "Permission Denied: Cannot determine Username for DN ...", thrown by diskCacheV111.services.authorization.KPWDAuthorizationPlugin.

However, the plot thickens as seemingly this exception isn't handled correctly, resulting in a further exception:

getFailedResponse invocation failed java.lang.NoSuchMethodException?: org.dcache.srm.v2_2.SrmPingResponse?.setReturnStatus(org.dcache.srm.v2_2.TReturnStatus)

which Axis propagates back to the client as:

SRMClientV2 : srmPing: try # 0 failed with error SRMClientV2 : java.rmi.RemoteException?: SRMServerV2.srmPing() exception; nested exception is:

java.lang.NoSuchMethodException?:

org.dcache.srm.v2_2.SrmPingResponse?.setStatusCode(org.dcache.srm.v2_2.TStatusCode)

If an SRM v1 ping is issued, there is no problem.

Since Martin was able to replicate the problem, I believe this is a genuine problem.