Are you getting an exception? If so, post it. It makes searching for problems much easier if we know where to start...
“Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.” - Rich Cook
Secondly, you define a display page if (responseAction.equalsIgnoreCase(SourceConstants.ADD_INC_ENTRY)) or there is an exception, but otherwise there is not response defined.