RFR: 8076458: java/util/stream/test/org/openjdk/tests/java/util/stream/FlatMapOpTest.java timeout

[Hamlin Li]

Hi everyone,

Would you please help to review the fix for bug 
https://bugs.openjdk.java.net/browse/JDK-8076458, 
java/util/stream/test/org/openjdk/tests/java/util/stream/FlatMapOpTest.java 
timeout.
webrev: http://cr.openjdk.java.net/~mli/8076458/webrev.00/
Thank you
-Hamlin