hg: jigsaw/jake/jaxp: Update jtreg required version to 4.2 b07

[mandy.chung at oracle.com]

Changeset: d44354fed774
Author:    mchung
Date:      2017-04-04 22:09 -0700
URL:       http://hg.openjdk.java.net/jigsaw/jake/jaxp/rev/d44354fed774

Update jtreg required version to 4.2 b07

! test/TEST.ROOT