Basically, I left the XML Collection Handler untouched because the JXPath is not providing the same functionality as javax.xml.xpath.XPathFactory (some of the 3GPP tests were failing); so, the JXPath is going to be used only by the JSON Collection Handler.
Fixed on revision 2ab13fb53ccc3a2ddd2b344ebc0580476da2ede6 for 1.12
Implement a data collector that retrieves its data from json output.