Spring 3.0 Upgrade

[SennRaj]

I would like to upgrade my enterprise application from Spring 1.2.4 to Spring 3.0

Are there any specifics thats need to be done for a succesful migration?

Thanks

[Marten Deinum]

That is quite an upgrade .

In theory there should be little that breaks but that is in theory there have been a couple of (minor) breaking changes in 2.0, 2.5 and 3.x which you might encounter. I suggest you read the reference guides for the different versions for some more information.

Upgrading from this version might also result in that you need to upgrade some 3rd party libraries such as your ORM provider as spring dropped support for older libraries in newer versions of spring.

As suggested best is to read the different reference guides.

[SennRaj]

Maten,
Thanks for the reply. I started looking into the reference guide.

Any body went through similar upgrade? Trying to save some time and not to reinvent the solutions again

[Marten Deinum]

I would simply try it and see if it fails. If you don't do anything strange or specific you have a good change that everything just works.

A couple of things
- There is no big spring.jar anymore only spring-[module].jar files so it might give you some headaches to find out which ones to use
- Update your context.xml files to use the xsd instead of a DTD