Set the environment vars

Is there anyway to setup env variables inside java application. In CGI progs, I used to do putenv and setup all the environment I needed. How I can do the same thing in Java servlet or just java.
-Raj

Why?
Changing a env var will not affect anything in java. And it will not propogate back up once it exits either (very limited usage for this last case.)
And if you want to shell, via Runtime.exec() it has a way to set the vars for the shell.

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