JERSEY-2323: If OAuth Access Token response is in JSON format and if it contains
             array then it is not able to parse it with JSON parser(like jackson).

 - fix + test

Change-Id: Ia3013626169390ee4bc21c654cc0ac7ee36b5b03
Signed-off-by: Michal Gajdos <michal.gajdos@oracle.com>
Merge "JERSEY-2323: If OAuth Access Token response is in JSON format and if it contains              array then it is not able to parse it with JSON parser(like jackson)."