Add support for jakarta.mail 2.0

[uberskigeek]

• Maven dependencies
• Javadoc links (pom.xml)
• Check release note for further actions
  Jakarta 2.0 has renamed the javax.mail packages to jakarta.mail along with some enhancements.

[marcelmay]

Thx, @uberskigeek .

Pulled the PR into branch issue-317-jakarta-mail-2-0.

[oliverlietz]

Can we have an early 2.0 release with jakarta.mail, please?

[Airblader]

@marcelmay First off, thanks for this great project! I'd really love to use GreenMail for automated tests, but this would force me to downgrade, which I'd like to avoid.

Would you mind elaborating what the current situation / issues are since a branch does seem to exist? Can we help somehow?

[marcelmay]

@Airblader , I'll try to tackle that over upcoming easter vacation.

I try to keep GreenMail and JakartaMail major/minor versions in sync, and for a GreenMail 2.0 I'd like to use the chance to cleanup and deprecate some features. But an 2.0 pre release candidate for easter should work out.

[Airblader]

That makes sense. Thanks for the response, looking forward to it!

[marcelmay]

I created a new release 2.x preview branch, which contains the pulled in Jakarta Mail 2.0 changes rebased on latest master.

[RaphaelJenni]

@marcelmay Thanks a lot for the project and for keeping it alive!

Regarding the 2.x version with the jakarta.mail 2.0 support. Is it possible for you to release a beta/preview version to maven? This way we wouldn't have to build it manually and include it as a jar into our project.

[marcelmay]

@RaphaelJenni , just released an 2.0.0-alpha-1 for you. Any feedback appreciated.

[marcelmay]

@uberskigeek , thx alot for this PR. Sorry it took some time, now it is the base for GreenMail 2.0

[michaelhixson]

2.0.0-alpha-1 looks good in my app's tests. Thanks.

[RaphaelJenni]

@marcelmay thanks a lot for the alpha release. So far all tests are running as expected.

Only thing I had to add was the implementation("jakarta.activation:jakarta.activation-api:2.0.1") dependency for solving the NoClassDefFoundError: jakarta/activation/DataSource (Maven Repo) error.

[marcelmay]

@RaphaelJenni , thx for the feedback. This will be fixed by #385 .

The jakarta.activation-api should be added, as also GreenMailUtil imports API classes.

It seems com.sun.mail:jakarta.mail transitively pulls in com.sun.activation:jakarta.activation, which contains both activation and activation-api ... so a NCDFE should not happen. Anyway, dependency will be added.