hg: jdk/jdk: 8210395: Add doc to SecurityTools.java

[weijun.wang at oracle.com]

Changeset: f697ba5b18d2
Author:    weijun
Date:      2018-10-08 13:25 +0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/f697ba5b18d2

8210395: Add doc to SecurityTools.java
Reviewed-by: mullan

! test/lib/jdk/test/lib/SecurityTools.java
! test/lib/jdk/test/lib/util/JarUtils.java