[8u-dev] Request for approval: 8036819 JAB: mneumonics not read for textboxes

[Vivi An]

Hello,

Could you please approve straight back-port of the fix for JDK-8036819 
<https://bugs.openjdk.java.net/browse/JDK-8036819> JAB: mneumonics not 
read for textboxes to jdk8-dev?

JDK9 changeset: http://hg.openjdk.java.net/jdk9/client/jdk/rev/40e611441867
Reviewed by Alexander Scherbatiy.

Build and test works.

Thanks

~ Vivi