Upgrade to Jakarta Mail 2.x.x

[georgesolomon]

Jakarta Mail 2.0.0 release is the first release with package namespace changed to jakarta.mail. The main jar file is located at com.sun.mail:jakarta.mail.

This release contains no other enhancements nor bug fixes, except for the minimal required Java SE version which is now Java SE 8. This is also the release included in Jakarta EE 9. Applications are able to switch to this new version by just changing all imports that use javax.mail.* to instead use jakarta.mail.*.

[Rakambda]

Will have to update jakarta.activation too.

I think that these dependencies will have to update to new namespace before:

• net.markenwerk:utils-mail-dkim
• net.markenwerk:utils-mail-smime
• org.simplejavamail:smtp-connection-pool (because of com.github.bbottema:clustered-object-pool)

[bbottema]

I have avoided switching to Java8 until now as Java7 still had a market share of around 5-10% until recently (off the top of my head). I'll do a new survey and see if a switch can be made more safely now...

[jakobkmar]

Could you please consider removing the low priority label from this?

An upgrade to version 2.0.0 or higher would be great, as other libraries already made that change, which leads to incompatibility for the following reason (illustrated in steps):

1. the other library has version 2.0.0 as a dependency, SimpleJavaMail has a lower version as a dependency
2. the buildsystem now chooses the higher version automatically, meaning that the lower version won't be available as a library
3. now due to the change in the package structure, SimpleJavaMail can't access the required parts of jakarta mail anymore, as it expects them to be at javax.mail (where they aren't)

This means, that it currently is impossible to use SimpleJavaMail together with other libraries which implement a newer version of jakarta mail.

[bbottema]

I started migrating to Jakarta Mail 2.0.0. As https://github.com/markenwerk/java-utils-mail-smime is archived, I'm forking it so I can update the dependencies to Jakarta Mail 2.0.0 as well. I'll go ahead and merge some of my ignore pull requests as well, so I can clean up Simple Java Mail a bit finally.

[bbottema]

I'm in talks with the developers (both last one and original developers) to obtain permissions to relicense S/MIME under ApacheV2 and have procured 2 out of 3 permissions. When that's done, I'll start upgrading those projects.

[jhult]

@bbottema, any news on this?

[bbottema]

Yes, I've obtained all permissions and started migrating to Java 8 and Jakarta new version some time ago, but I put it on hold for some time to catch some breath. I've recently started picking up some maintenance work again to get back into the flow so I hope to pick this up again soon.