Problem

Observed in jenkinsci/bom#53 when attempting to add workflow-multibranch to the managed set. Running the Plugin Compatibility Tester against workflow-multibranch plugin and a newer version of workflow-scm-step, the following error appears:

Failed to execute goal on project workflow-multibranch: Could not resolve dependencies for project org.jenkins-ci.plugins.workflow:workflow-multibranch:hpi:2.21: Could not find artifact org.jenkins-ci.plugins.workflow:workflow-scm-step:jar:tests:2.9 in repo.jenkins-ci.org (https://repo.jenkins-ci.org/public/) -> [Help 1]

Evaluation

I saw that between workflow-scm-step 2.6 and 2.7 a tests-classified JAR was removed, yet workflow-multibranch still depends on it.

Solution

workflow-scm-step-2.6-tests.jar contains nothing other than the SCMStepTest class, and workflow-multibranch doesn't reference that class. The solution then is to remove the dependency on workflow-scm-step-2.6-tests.jar from workflow-multibranch, allowing us to bump workflow-scm-step past 2.6 from workflow-multibranch's POM.

Implementation

In this change I bump workflow-scm-step from 2.6 to 2.7 in workflow-multibranch's POM to cross this flag day.