EJB 2.x to 3.x automatic migration tool

Question

Could someone recommend me an automatic migration tool for EJB? Preferably some Eclipse plugin... Thanx!

Answer 1

Four years ago I wrote some tooling in perl. But from todays perspective I think going through the sources in a day, removing unneeded stuff and adding annotations by someone who has seen both technologies is the best.

It is at the end not enough to just put @Stateless into a bean class that had its stateless definition in xml before - you also want to use @EJB annotations to inject other beans and most likely remove old CMP or BMP data access with JPA, which uses a different semantics etc.

While some tooling may exist, I think best is going over the existing source with a fine comb so that you know what you are doing.

Answer 2

I'd suggest using IntelliJ EJB refactoring tools: http://www.jetbrains.com/idea/webhelp/migrating-to-ejb-3-0.html