Last IntelliJ update (2017.3) breaks developing with Akka / Scala on Java

[Tomer Rothschild]

Hi all,

The last IntelliJ update (2017.3) introduced regression that brakes developing with Akka / Scala on Java.

The regression is that IntelliJ shows false error highlighting in Java when subclassing Scala classes that had traits mixed in (all AbstractActor classes for example - AbstractActor, AbstractPersistentActor, AbstractPersistentActorWithAtLeastOnceDelivery, etc'..).

IntelliJ forces you to either declare the new sub class as abstract, or implement all the methods of all the mixins.

Needless to say, the project compiles and runs perfectly.

I opened the following ticket with Jetbrains - ticket 1166142, and created the following repository that reproduces the false errors - intellij-mixin-issue.

Please consider weighing in to the discussion so that the issue gets proper prioritization in JetBrains.

Regards,

Tomer R.

[Konrad “ktoso” Malawski]

Hi Tomer,

Thanks for reporting it to the IntelliJ team. 

Could you post a working link to the issue? The one posted does not seem to work.

-- 

Cheers,

Konrad 'ktoso' Malawski

Akka @ Lightbend

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[Tomer Rothschild]

I now see I have opened a request to JetBrains rather than a bug. Here's the updated ticket - now as a bug - IDEA-183259 

[Rob Crawford]

The Scala plugin is marked as incompatible with 2017.3; I don't have it installed, and the Java API is working OK for me.

[Tomer Rothschild]

@Rob Crawford Thanks! 

Worked like a charm. I updated the ticket.