Error trying to compile examples project: scala.reflect.internal.MissingRequirementError about kafka-streams-examples HOT 7 CLOSED

I am on different versions (on Mac):

$ java -version
java version "1.8.0_102"
Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)

$ scala -version
Scala code runner version 2.12.6 -- Copyright 2002-2018, LAMP/EPFL and Lightbend, Inc.

It compiles for me. Can you try a different Java/Scala version?

from kafka-streams-examples.

Excellent, that fixed it, thanks very much! I installed JDK 8 and swapped to use that, and the mvn cmd line now works.

Would you like me to mark this issue as closed, or keep it as an open issue because the examples didn't work for me on Linux on JDK 10?

Note, however, that the classes that are missing, as described in issue 144, are still missing when I open the project in the IDE (IntelliJ in my case). I'll add a comment to that issue.

from kafka-streams-examples.

\cc @ybyzek @miguno What is the goal for the examples? Should they work with Java10, too?

If yes, we might want to add Java10 to the build, too.

from kafka-streams-examples.

@yonigibbs I think your observed issue is due to scala 2.11.11 and below's plugin does not work well with Java10: scala/scala-dev#139 (comment)

from kafka-streams-examples.

@mjsax based on what I've got so far, we probably just need to document that if you're using J9+, you'd need to use Scala 2.12+.

from kafka-streams-examples.

Filed #167 for this.

from kafka-streams-examples.

Thanks for looking at this, @guozhangwang. I upgraded to 2.12.6 of Scala, but no luck I'm afraid: same error as above. I re-cloned the repo into a new folder in case that made a difference but it didn't.

However for my requirements it doesn't really matter: I just wanted to get the examples up and running, and using JDK8 instead of 10 for this is fine for me. So no need to re-open this case as far as I'm concerned.

Thanks again.

from kafka-streams-examples.