Code Review Request: 7090158 Networking Libraries don't build with javac -Werror

[Kurchi Hazra]

Hi,
This is an attempt to remove all build warnings that are related to 
networking in jdk. This work contains

(a) Small changes in java files to remove already existing warnings
(b) Small changes in Makefiles to prevent re-introduction of such warnings.


Webrev: http://cr.openjdk.java.net/~chegar/7090158/webrev/


Thanks,
-Kurchi