fix for JERSEY-1761, JERSEY-1967: no proxy gets injected into method parameters,
                     		  added an explicit async test

Change-Id: Ib5b9dacceff0126341c2d49651c4ef04092387c6
Merge "fix for JERSEY-1761, JERSEY-1967: no proxy gets injected into method parameters,                      		  added an explicit async test"