FYI, 8146192 Add test for JDK-8049321

[Xuelei Fan]

FYI.

I missed the test code while push the changeset for JDK-8049321.  This
update will push the changeset.

Please refer to the webrev for JDK-8049321:
   http://cr.openjdk.java.net/~xuelei/8049321/webrev.00/

Thanks,
Xuelei