> Maybe I have failed to pack the new Rar file, but in this case I guess
> JBoss will complain at deployment stage and everything is right.

Why should it?

> Also I don't know how to load my isc_tpb_mapping.properties file to
> follow your suggestion.

I am no longer sure that it will work, but you can try:

create new jar with that properties file and copy that jar into the lib/
directory of JBoss.

Roman