Code Review Request : 7144274: [macosx] Default IPv6 multicast interface is not being set when calling MulticastSocket.joinGroup()

[Kurchi Hazra]

Hi,

     Before joining multicast groups with IPv6 addresses on Mac OS, the
network interface to be used should also be set correctly. This
change enables using a default network interface on Mac OS X if no
interface has been specified.

  Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7144274
  Webrev: http://cr.openjdk.java.net/~khazra/7144274/webrev_jdk8/webrev.00/

  This change was originally pushed into 7u4[1], but needs to be pushed 
into jdk 8 also. There are no additional changes required for Jdk 8.

  Thanks,
  Kurchi

  [1] > 
http://mail.openjdk.java.net/pipermail/net-dev/2012-February/004078.html