hg: jdk9/sandbox/jdk: 8129972: Clarify the javadoc of java.security.CodeSource as to the nullability of 'location'

[chris.hegarty at oracle.com]

Changeset: b001deb8c797
Author:    jnimeh
Date:      2016-07-08 14:42 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/b001deb8c797

8129972: Clarify the javadoc of java.security.CodeSource as to the nullability of 'location'
Summary: Improves clarity of the CodeSource javadoc, specifically regarding the ability of the URL parameter in the constructors being null.
Reviewed-by: mullan

! src/java.base/share/classes/java/security/CodeSource.java