I often Google for "Java somethingnew tutorial" and almost always get a good hit from Sun or university class notes. This looks good.
You mentioned MQ ... IBM MQ-Series? The nice thing about JMS is that it works with any number of implmentors so you can practice up with the a simpler implementation and then move to the more complex world of Enterprise MQ-Series. I think Sun has a "not for production" reference implementation. The tutorial oughtta say.
A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi
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