The previous releases had org.apache.xalan.processor.TransformerFactoryImpl as the javax.xml.transform.TransformerFactory. This regression causes failures with the JSF testsuite.
https://github.com/jbossas/jboss-eap/pull/1250
Linking to TCK failure which seems to be caused by the upgrade
In my previous comment "caused by the upgrade", I meant to say caused by the upgrade to "2.7.1-redhat-6"
verified on EAP 6.3.0.ER3
*** Bug 1065130 has been marked as a duplicate of this bug. ***