JERSEY-2584: Proxy-based client example uses non-existent method

 - fix

Change-Id: I0a40871c27e9751e0c9b0f73357d5c53be5bd17b
Signed-off-by: Michal Gajdos <michal.gajdos@oracle.com>
Merge "JERSEY-2584: Proxy-based client example uses non-existent method"