Review request: 8004042 : Arrrghs.java test failed on windows with access error.

[David DeHaven]

A fix for intermittent test failures causing grief on Windows, particularly Windows 7 and 2008 systems:
http://cr.openjdk.java.net/~ddehaven/8004042/webrev.1/

The underlying cause is as of yet unknown, but I was able to create an environment that caused similar failures by running "watch -n 0.2 cat JTwork/scratch/atest.bat" in another shell then running jtreg. Without the patch it would fail very regularly (especially when isolated and looped 1,000 times), with the patch it always passes.

-DrD-