[8u] request for approval: 8132209: DiagnosticCommandImpl.getNotificationInfo() may expose internal representation

[Dmitry Samersoff]

Everybody,

It's a direct backport of one-line fix from jdk9 to jdk8:

webrev: http://cr.openjdk.java.net/~dsamersoff/JDK-8132209/webrev.01/

jdk9 changeset: http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/2a671e5803a1

Thanks,
-Dmitry.