Need reviewer - jdk7 jdwpgen, added netbeans project, fixed findbugs errors

[Tim Bell]

Hi Kelly

>    6853636: Fix warnings in jdwpgen, add jdwpgen NetBeans project
> 
>    http://cr.openjdk.java.net/~ohair/openjdk7/jdk7-build-jdwpgen-6853636/webrev/
> 
> Pretty harmless code cleanup on the tool used to generate
> some of the JDWP code for the debugger.

This is a tool run at build time - if this makes findbugs happier, that is good.

The changes look fine to me - Approved!

Tim