[8u60] Approval for backport of JDK-8080344

[huizhe wang]

Please approve backport of JDK-8080344 to 8u60:

Bug: https://bugs.openjdk.java.net/browse/JDK-8080344
JDK9 webrev: http://cr.openjdk.java.net/~joehw/jdk9/8080344/webrev/
JDK8u backport webrev: http://cr.openjdk.java.net/~joehw/8u/8080344/webrev/
Review thread: 
http://mail.openjdk.java.net/pipermail/core-libs-dev/2015-May/033421.html

Note that XPathEvaluationResult.java and XPathNodes.java are JDK9-only 
classes. Otherwise, the patch was unshuffled and imported cleanly to 
jdk8u-dev/jaxp repo.

Thanks,
Joe