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Has anybody tried to move from jboss 4 to jboss jboss 7.1? Is it real?
I've been helping a client migrate to AS 7.1 from JBoss 4.x and it is definitely doable. We found solution most issues, if not all, that we ran into in the AS7.1 docs:
How many changes we must do with existing project, if we have one for jboss 4.2.3 ?
All projects are different and it is hard so say how many changes are required for your specific project.