RFR:

[Jonathan Gibbons]

Please review a small cleanup to fix some architecturally inappropriate 
imports in the internal toolkit package.
Since this is just a small cleanup changeset, I also cleaned up some of 
the javadoc comments in some of the affected files.

JBS: https://bugs.openjdk.java.net/browse/JDK-8195058
Webrev: http://cr.openjdk.java.net/~jjg/8195058/webrev.00
-- Jon