Try this:
String output = response.getEntity(String.class);
EDIT
Thanks to @Martin Spamer to mention that it will work for Jersey 1.x jars only. For Jersey 2.x use
String output = response.readEntity(String.class);
Try this:
String output = response.getEntity(String.class);
EDIT
Thanks to @Martin Spamer to mention that it will work for Jersey 1.x jars only. For Jersey 2.x use
String output = response.readEntity(String.class);