[8u-dev] Request for approval: 8144593: Suppress not recognized property/feature warning messages from SAXParser

[Aleksej Efimov]

Hi,
Please, approve JDK-8144593 backport to JDK8u-dev. JAXP source fix 
applies cleanly after reshuffling.
Two new tests were moved to JDK repo with minor,non-functional 
modifications (JTREG tags and tests package name was removed).
Testing shows no related test failures.

JBS:
https://bugs.openjdk.java.net/browse/JDK-8144593
JDK9 changeset:
http://hg.openjdk.java.net/jdk9/dev/jaxp/rev/6aa83d55614a
Review thread:
http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-February/038595.html
Webrev:
http://cr.openjdk.java.net/~aefimov/8144593/8/00/

With Best Regards,
Aleksej