Future jdk9u updates & 9-critical-request

[Rob McKenna]

Hi Martin,

I see you've added the 9-critical-request label to several bugs lately.
This is just a heads up to let you know that as Oracle has no plans to
release further updates to JDK9 [1] then these labels will be have no
effect until a new project maintainer steps forward.

    -Rob

[1] http://mail.openjdk.java.net/pipermail/jdk-updates-dev/2017-November/000024.html