1.9

- Added a new message for the case of java 9 and above.
- Selection of message is based on whethe '_' is error or warning.

Updated tests as well

Change-Id: I464b3063446258d1dab522d7c49a18c8438e2b7f
Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>