rmiregistry_ja.properties is not included into rt.jar under $JREHOME/lib.
This is l10n resource integration problem.

% which java
/import/near/Duke/jdk1.3/binaries/latest/solaris/bin/java
% java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-H)
Java HotSpot (TM) Client VM (build 1.3-H, interpreted mode)
% pwd
/import/near/Duke/jdk1.3/binaries/fcs_H/solaris/jre/lib
% jar tvf rt.jar | grep registry | grep properties
   667 Wed Sep 22 03:58:04 JST 1999 sun/rmi/registry/resources/rmiregistry.properties
   792 Wed Sep 22 03:58:04 JST 1999 sun/rmi/registry/resources/rmiregistry_zh.properties
%

kenichi.kurosaki@Japan 1999-09-28