hg: jdk10/sandbox/jdk: 8184330: Remove sun.nio.ch.Util.atBugLevel() either completely or at least get rid of volatile field bugLevel

[chris.hegarty at oracle.com]

Changeset: c2646a645a52
Author:    clanger
Date:      2017-08-04 15:28 +0200
URL:       http://hg.openjdk.java.net/jdk10/sandbox/jdk/rev/c2646a645a52

8184330: Remove sun.nio.ch.Util.atBugLevel() either completely or at least get rid of volatile field bugLevel
Reviewed-by: alanb

! src/java.base/share/classes/sun/nio/ch/SelectorImpl.java
! src/java.base/share/classes/sun/nio/ch/Util.java
! test/java/nio/channels/Selector/KeySets.java