How can I use functions like listgrp, altgrp & etc for user administration from java. In perfect way Java application is servlet run on websphere application server 6.1.
RACF commands normally run under TSO, whether interactive or batch. Unless you have a way to access the TSO environment from Java, what you are wanting to do will not be possible. You might contact IBM to see if they have any such tool, but I have not heard of anything to allow native TSO commands to be entered from Java.