Request for approval : 8048207: Collections.checkedQueue.offer() calls add on wrapped queue

[Mike Duigou]

This request is for a backport of an issue fixed in JDK 9. The same changeset will be used. This issue follows 8047795

JBSBug: https://bugs.openjdk.java.net/browse/JDK-8048207
Webrev: http://cr.openjdk.java.net/~mduigou/JDK-8048207/0/webrev/
Changeset: http://hg.openjdk.java.net/jdk9/dev/jdk/rev/c5481aa40b6f
Review: http://mail.openjdk.java.net/pipermail/core-libs-dev/2014-June/027419.html

Thanks,

Mike