0.19 fails on Scala 2.12.8 due to CollectionConverters

[UnconventionalMindset]

When using Scala 2.12.8 Scalameter 0.19 fails with the sample test throwing:

Exception in thread "main" java.lang.NoClassDefFoundError: scala/jdk/CollectionConverter
...
Caused by: java.lang.ClassNotFoundException: scala.jdk.CollectionConverters
...

Could it be related to CollectionConverters being removed on 2.13 standard Scala but present in 2.12?

[fyodorovski]

cc @julienrf Do you have any ideas if this could be related in some way to the recent refactoring?

[julienrf]

The scala-collection-compat project does provide scala.jdk.CollectionConverters. This module should have been transitively added to your dependencies.

[UnconventionalMindset]

I fixed the issue only by adding:

<dependency>
  <groupId>org.scala-lang.modules</groupId>
  <artifactId>scala-collection-compat_2.12</artifactId>
  <version>2.1.2</version>
</dependency>

how can we prevent this in the lib?

[axel22]

Maybe we should update the version to 2.1.2 in the ScalaMeter build file, here:

    case Some((2, 12)) => List(
      "org.scala-lang.modules" %% "scala-collection-compat" % "2.1.1",

https://github.com/scalameter/scalameter/blob/master/project/Build.scala