script-maven-plugin seems to be dead upstream and emits warnings in parallel builds:
[WARNING] ***************************************************************** [WARNING] * Your build is requesting parallel execution, but project * [WARNING] * contains the following plugin(s) that have goals not marked * [WARNING] * as @threadSafe to support parallel building. * [WARNING] * While this /may/ work fine, please look for plugin updates * [WARNING] * and/or request plugins be made thread-safe. * [WARNING] * If reporting an issue, report it against the plugin in * [WARNING] * question, not against maven-core * [WARNING] ***************************************************************** [WARNING] The following plugins are not marked @threadSafe in concepts: [WARNING] com.alexecollins.maven.plugin:script-maven-plugin:1.0.0 [WARNING] Enable debug to see more precisely which goals are not marked @threadSafe. [WARNING] *****************************************************************
Rework current solution to use something else – a dedicated maven plugin if need be (they are really simple), it should be faster than the current solution anyway 