Please review java.util.jar.pack.* cleanup/refactoring/generificaiton

[Kumar Srinivasan]

Hi,

Appreciate a review of the pack200 cleanup work, in the following areas:

1. General generification of Collections.
2. fixed worthy findbugs items.
3. fixed worthy Netbeans nags.
4. Elimination of array/generics combination.

The webrev is here:
http://cr.openjdk.java.net/~ksrini/6990106/webrev.00/

Thanks
Kumar