So unfortunately this isn't a real fix for this failing test.
(intermittent, certain platforms only) However since I have enough
information to investigate this problem separately I'd like to silence
this specific failure in the mean time. I'll investigate the actual
failure under https://bugs.openjdk.java.net/browse/JDK-8141370
http://cr.openjdk.java.net/~robm/8132455/webrev.01/
-Rob