[PATCH] JDK-8005472: com/sun/jmx/remote/NotificationMarshalVersions/TestSerializationMismatch.sh failed on windows

[Jaroslav Bachorik]

Looking for a review and a sponsor.

Webrev at:
http://cr.openjdk.java.net/~jbachorik/8005472/webrev.00/test/com/sun/jmx/remote/NotificationMarshalVersions/TestSerializationMismatch.sh.sdiff.html

JPRT run on windows targets:
http://sthjprt.se.oracle.com/archives/2012/12/2012-12-28-123054.jbachorik.openjdk8-tl//JobStatus.txt

The issue is about a new test failing when run on windows machines. It
seems that the cygwin really does not like removing a non-existent file
- to the extent of hanging the script indefinitely.

The patch adds a pre-check for the existence of the file to be removed.
It does not change the test in any other way.


Thanks,

-JB-