HI! I've tried using Kotlin Spark v1.2 today, spec...

# kotlin-spark

[Michael Livshitz]

HI! I've tried using Kotlin Spark v1.2 today, specifically kotlin-spark-api_3.0.1_2.12:1.2.1 along side Kotlin 1.6.10 with a 1.8 JVM target on an existing code base that is already using an older version of Kotlin Spark, but once I've replaced my old dependencies with the new ones, I got Cannot inline bytecode built with JVM target 11 into bytecode that is being built with JVM target 1.8. Please specify proper '-jvm-target' option. Now when I go to sources I do see that it its bytecode 55 (Java 11). I was wondering if there is anything I can do about it given I'm stuck using a 1.8 JVM.

Thank you for making Spark awesome btw :D

[roman.belov]

cc @Jolan Rensen [JetBrains]

[Jolan Rensen [JB]]

hmm, we indeed target jvm 11, didn't think it would cause an issue with java 8. I think the best option is to rebuild the kotlin spark api yourself from source and replace jvmTarget in https://github.com/Kotlin/kotlin-spark-api/blob/release/buildSrc/src/main/kotlin/Versions.kt to " 8".

You can set your desired spark- and scala version in https://github.com/Kotlin/kotlin-spark-api/blob/release/gradle.properties or like ./gradlew -Pspark=X.X.X -Pscala=X.X.X yourCommand
The gradle command publishToMavenLocal for the kotlin-spark-api_x.x.x_x.xx module should install it correctly to maven local on your machine.

Also thanks! 🙂 let me know how it goes!

[Michael Livshitz]

Thanks Jolan! Will give it a try