The link to the OpenMQ forums on the left menu bar on the front page (http://mq.java.net/) is dead, leading to https://forum.java.sun.com/forum.jspa?forumID=711 which gives a 404.
It is not clear where the OpenMQ forums actually reside.
Thanks for reporting this.
The legacy Sun Java System Message Queue web forum has now been moved to the OTN Community here and made read-only.
The best place to ask questions about Message Queue is the email-only user forum email@example.com here. However for users who are using Message Queue as part of GlassFish, there is also the GlassFish user mailing list and web forum (one is a mirror of the other) here.
There's also a JMS web forum , which is now here. This is intended mainly for questions about JMS rather than about specific implementations.
We'll review and update the website links.