Upgrade Jboss 4 > 7.1.

[alex_dolg]

Has anybody tried to move from  jboss 4 to jboss jboss 7.1? Is it real? How many changes we must do with existing project, if we have one for jboss 4.2.3 ? Thanks in advice.

[beve]

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:

https://docs.jboss.org/author/display/AS71/How+do+I+migrate+my+application+from+AS5+or+AS6+to+AS7

https://docs.jboss.org/author/display/AS71/Example+Applications+-+Migrated+to+AS7

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.

Regards,

/Daniel