Bug Info:
=========
I used jtreg -J option for using JVM runtime options in the following way while running regression test.

-J-Xms64m -Xmx1540m -XX:PermSize=64m -XX:MaxPermSize=64m

But i was getting the following error.

Unrecognized argument: `-Xmx1540m'

Then i understand, -Xmx1540m is treating as jtreg option so that it is saying unrecognized option.Later i was trying same thing in the followin way.

-J"-Xms64m -Xmx1540m -XX:PermSize=64m -XX:MaxPermSize=64m"

Still i was getting the error like below mentioned way.

Unrecognized option: -XX

I gave the entire runtime options as string even though i am facing the problem.It is taking the string upto -Xms64m -Xmx1540m -XX.