Tycho 2.4.0 Junit classpathcontainer requires Junit 4.13

[rcspirent]

In Tycho 2.4.0 special handling for Junit classpath containers was added.
When using this feature some implicit requirement for Junit 4.13 seems to be added.

[ERROR] Cannot resolve project dependencies: [ERROR] You requested to install 'org.eclipse.equinox.p2.iu; org.junit [4.13.0,5.0.0)' but it could not be found

Reproducable with the following mavvn invocation mvn package -Dtarget-platform=http://download.eclipse.org/eclipse/updates/4.14/ -Dtycho-version='2.4.0' on the integration tests at https://github.com/eclipse/tycho/tree/master/tycho-its/projects/compiler.junitcontainer/junit4-in-bundle

Tested up to Tycho 2.6.0.

[laeubi]

This is correct behavior, you need to provide 'org.junit' as part of the build because that is how the JUnit container behaves in Eclipse IDE.

[rcspirent]

Sorry I wasn't clear enough.
The issue I have is that the eclipse 4.14 repository as in the previous post contains Junit 4.12.
My understanding is that the Junit class path conatiner/4 should be okay with any Junit in the 4.x range.

In short there is Junit 4.12 in the target platform and since Tycho 2.4.0 it still asks for 4.13.

[laeubi]

Yes I think that would be okay, do you like to propose a PR?

[sophher]

Did you resolve the issue or have a workaround? Because I'm facing exactly the same error with Tycho 2.7.5 when building our legacy application with the maven-toolchain-plugin. But I can't downgrade Tycho, because then it's not toolchain aware any more :(

[sophher]

We found a workaround. We added a newer p2 updatesite, which contains the 4.13 version into our target definition:

<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
  <unit id="org.hamcrest.core" version="0.0.0" />
  <unit id="org.hamcrest.core.source" version="0.0.0" />
  <unit id="org.junit" version="0.0.0" />
  <repository location="https://download.eclipse.org/eclipse/updates/4.16/R-4.16-202006040540" />
</location>

[akurtakov]

Closing as there is no plan into looking into ancient versions and user found a workaound.