Upgrade to Angus Mail 2.0.3 #6068
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| // I couldn't get this to work once I switched to Angus Mail; kept getting this exception: | ||
| // java.util.ServiceConfigurationError: jakarta.mail.util.StreamProvider: org.eclipse.angus.mail.util.MailStreamProvider not a subtype |
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Is it not finding MailStreamProvider or is it, in fact, not a subtype? If it seems like it is a subtype, perhaps there's some kind of classpath problem, but is this needed? Will it be checking something different from the if (properties.isEmpty()) block above?
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It seems to be finding MailStreamProvider which is a subtype. So yes, I agree it's likely a classpath problem. I tried quite a few combinations of Angus Mail + Jakarta Mail API + Angus Activation + Jakarta Activation API in both embedded and our API (none in embedded, all in both, etc.) to no avail. The new approach avoids JNDI and Tomcat's involvement, which seems to be an important difference and works as expected. As a non-trivial upgrade, it seemed best to get a working combination committed and tested. We can certainly revisit the JNDI approach in this or a follow-on PR.
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I struggled with similar problems when migrating to Tomcat 10. They stemmed from having copies of the classes loaded by different class loaders, as you're both suspecting here. The error messages were frustrating because all the talk about is class names, which always looked correct.
If we're not relying on JNDI to wire things up, don't we need to handle all of the properties we propagate here?
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I believe the new code populates all the same properties that the old code did
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I believe the new code populates all the same properties that the old code did
Looks like you're right. I hadn't read enough of the adjacent, untouched code.
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There's a first time for everything, I guess...
Rationale
Angus Mail is the active development project, successor to Jakarta Mail
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