Review request for JDK-8052401: JAXP function gap tests conversion

[Frank Yuan]

Hi, Joe, Lance and All

We are working on moving internal jaxp functional tests to open jdk repo.
This is the gaptest suite. Would you please review these test?  Any comment
will be appreciated.

bug: https://bugs.openjdk.java.net/browse/JDK-8052401
webrev: http://cr.openjdk.java.net/~fyuan/8052401/webrev.00/


Thanks,

Frank