Code Review Request: 7152007: Fix warnings in sun/rmi/rmic

[Kurchi Hazra]

Hi,

    The warning fixes in sun/rmi/rmic originally pushed as a part of CR 
7146763, were undone by 7151348
due to build breakage when SKIP_BOOT_CYCLE is set to false.
   This CR attempts to incorporate these warning fixes into jdk8. Most 
of the changes have already been code-reviewed [1],
but one line is changed in accordance to Stuart Mark's suggestion[2], so 
that the build doesn't break.


Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7152007
Webrev: http://cr.openjdk.java.net/~khazra/7152007/webrev.00/


Thanks,
Kurchi

[1] 
http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-February/009315.html
[2] 
http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-March/009481.html