--- old/src/java.base/share/classes/java/nio/channels/AsynchronousChannelGroup.java 2017-05-05 15:25:46.347572437 -0700 +++ new/src/java.base/share/classes/java/nio/channels/AsynchronousChannelGroup.java 2017-05-05 15:25:46.215566674 -0700 @@ -60,11 +60,15 @@ * default group is not configured then the pooled threads of the default group * are {@link Thread#isDaemon daemon} threads. * - *