Hi,

As mentioned in the log, you need to install the hibernate-validator-osgi-karaf-features artifact before running the OSGi tests:

artifactorg.hibernate:hibernate-validator-osgi-karaf-features:xml:features:6.0.0-SNAPSHOT:Could not find artifact org.hibernate:hibernate-validator-osgi-karaf-features:xml:features:6.0.0-SNAPSHOT in apache (http://repository.apache.org/content/groups/snapshots-group/)
shaded.org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.hibernate:hibernate-validator-osgi-karaf-features:xml:features:6.0.0-SNAPSHOT in apache (http://repository.apache.org/content/groups/snapshots-group/)

So either go to the karat-features directory and run mvn install or run a global mvn install to install everything properly.