Code review request 7189886: improve AsynchronousChannelGroup tests to cover withThreadPool method

[Amy Lu]

While going through the missing coverage APIs, withThreadPool method of 
AsynchronousChannelGroup is not covered by any test.
This is improvement for AsynchronousChannelGroup tests to cover this method.

Thanks Alan for help posting the webrev. Please review:
http://cr.openjdk.java.net/~alanb/7189886/webrev.00/

Thanks,
Amy

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.openjdk.java.net/pipermail/nio-dev/attachments/20120808/99a8ec5c/attachment.html