Dear Alpakka-lovers,
In the name of all Alpakka contributors and the Akka team, we’re glad to announce the latest Alpakkas are now available!
Details in the announcements:
Cheers,
the herders of Alpakkas
Thx for the migration to Alpakka 3.x!
I notice runtime issues when running Alpakka 3.0.0 code with a late Java 8, eg
[error] (Test / executeTests) java.lang.UnsupportedClassVersionError: akka/stream/alpakka/file/impl/FileTailSource has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
or
Exception in thread "main" java.lang.UnsupportedClassVersionError: akka/stream/alpakka/elasticsearch/ApiVersion has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
Switching to a late Java 11 helps.
The interesting thing is that only “recently touched Alpakka parts” seems to be affected, the other Alpakka stuff is running fine.
Kind regards
Paul
Thank you for reporting. I see this first now.
We need to check what might have gone wrong here.
Cheers,
Enno.
For the record this is now tracked by 3.0.0 release not Java 8 compatible · Issue #2680 · akka/alpakka · GitHub and we are working on getting a 3.0.1 release out where this problem is fixed.
We’ve just released Alpakka 3.0.1 which solves the JDK 8 problem.
https://doc.akka.io/docs/alpakka/current/release-notes/3.0.x.html
Cheers,
Enno.
Thx for the quick response! Everything OK now with 3.0.1
Regards
Paul