https://bugzilla.redhat.com/show_bug.cgi?id=1448753
--- Comment #12 from Jason Shepherd jshepherd@redhat.com --- Statement:
After further analysis of this issue, it was determined that the flaw was in the XML Frameworks implementation on EAP 7, not in RESTEasy.
If you use a javax.xml.transform.TransformerFactory to process a javax.xml.transform.Source instance please be aware of this outstanding issue with that functionality on EAP 7.0.x:
https://bugzilla.redhat.com/show_bug.cgi?id=1451960