SBT 1.0.1+ fails on loading resources

Scala code to list resources which works in sbt 0.13.x and SBT 1.0.0 fails in SBT 1.0.1 and 1.1.1

steps

• Clone this project https://github.com/jdrphillips/sbt-testing
• Run sbt "run /subfolder"

Direct link to the code being run: https://github.com/jdrphillips/sbt-testing/blob/master/src/main/scala/foo/Testing.scala

To see a working version using sbt 0.13.17, checkout the branch 1317 on the same project and complete the same steps. To see SBT 1.0.0, checkout branch 100. The code being run does not change between branches.

The code fails on branches 111 (SBT 1.1.1) and 101 (SBT 1.0.1)

problem

When trying to load resources in SBT 1.0.1+ using getClass.getResource, the path generated is something like:

• file:/tmp/sbt_2a66a2c6/job-1/target/84311835/sbt-testing_2.12-0.1-SNAPSHOT.jar!/subfolder

when it should be something like:

• ~/sbt-testing/target/scala-2.12/classes/subfolder

This change has the effect of being unable to list files in a resource directory. java.io.File cannot find the first path.

expectation

The scala code which runs on the 1317 branch should also run on the 111 and 101 branches (sbt versions 1.1.1 and 1.0.1 respectively).

notes

scala version 2.12.4

sbt version: 1.1.1, 1.0.1

Confirmed behaviour on Ubuntu and Mac.

[konradmalik]

Can someone explain why is this marked as closed but the problem still presists in SBT 1.2.6? Whenever I use getClass.getResource in my code I cannot use sbt run because it’ll fail to find the files, this makes sbt run basically unusable. I couldn’t even find any workarounds to this. Suggestions?

[spydon]

This is still an issue, and should be reopened. You can add the following to your build.sbt as a temporary solution: run := Defaults.runTask(fullClasspath in Runtime, mainClass in run in Compile, runner in run).evaluated