Alternative for apache commons-email and Jakarta

Question

We've upgraded our application to Spring6/Tomcat10 (that implies migration from Java EE to Jakarta) and could not find jakarta compatible alternative for apache commons-email library?!

We seem to have decent amount of custom code that uses commons-email. Have anyone else run into this issue before? What our options are?

After performing the initial research I can think of the following options (and to be honest I don't like neither one of them :-():

1. Refactor our code to use jakarta.mail where commons-email library is used? (Seem to be a significant effort).
2. Fork source code of the commons-email library and migrate it to jakarta ourselves? (Have anyone taken this route? If it's that straight-forward wondering why maintainer of the commons-email project have not done that already?)
3. We tried to keep both javax-mail and jakarta-mail libraries in the classpath, and keep using commons-email in the places where it's used and it works most of the time, but sporadically throws:

java.lang.ClassCastException: class com.sun.mail.handlers.multipart_mixed cannot be cast to class jakarta.activation.DataContentHandler (com.sun.mail.handlers.multipart_mixed and jakarta.activation.DataContentHandler are in unnamed module of loader 'app')

Is there anything else we can do? Any help with be greatly appreciated!

Answer 1

commons-email 2.0.0 which will be compatible with the jakarta namespace will be available soon (I'm writing this answer on 2024-01-15) as you can see in this Jira ticket : https://issues.apache.org/jira/browse/EMAIL-203