<Swing Dev> Review Request for 8040893: fix doclint block tag issues in swing border classes

[Steve Sides]

Hello,

Could you please review the fix for the following bug:
https://bugs.openjdk.java.net/browse/JDK-8040893

Webrev corresponding:
http://cr.openjdk.java.net/~ssides/8040893/

webrevComment.txt:
This addresses missing @parm and @return block tags in javadoc for
javax/swing/border classes as noted by doclint.

It does not address methods which are missing javadoc comment altogether,
of which there are many.

It also a adds @return to isBorderOpaque() methods which were incorrectly
inheriting the default, @return false, from AbstractBorder.


thanks,

-steve