[8u40] Request for approval: 8031696 [macosx] TwentyThousandTest test failed with OOM

[Alexander Scherbatiy]

Hello,

Could you approve the direct backport of the fix to JDK 8u-dev.

The bug: https://bugs.openjdk.java.net/browse/JDK-8031696
The webrev: http://cr.openjdk.java.net/~alexsch/8031696/webrev.01/
The review thread: 
http://mail.openjdk.java.net/pipermail/swing-dev/2014-November/004052.html
The JDK 9 changeset: 
http://hg.openjdk.java.net/jdk9/client/jdk/rev/3b2bc2801098

Thanks,
Alexandr.