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EJB 3.0 well received by the community?

 
Greenhorn
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After digging through HF:EJB, I have become interested in the 'business' components of J2EE and would like to continue. Right now, Java is more of a hobby for me, but definitely something that is interesting. I hope to make a career change in a few years to start using it.

As such, I would like to know if I should study EJB 3.0 or just stick to 2.0/2.1. In the Head First book, they stick with the older spec and I also noticed that there is no certification exam for any of the newer specs on the java.sun.com site.

Has 3.0 been well accepted by developers? If so, I would expect that it will be worth studying the 3.0 spec vice the older ones. Sun's literature says it is fully compliant with 2.0/2.1 and the greatest thing on earth, but I don't like buying their hype. If 3.0 is not well received, it seems like a bit of a pain (finding help, compliant containers, good books/examples) and it might be better sticking to 2.0/2.1.
 
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