Aggregation doesn't work when building w/ multiple threads

[cosminci]

When running the maven build with -T 1C in a multi-module maven project with a common module that needs to be run before the others can be built in parallel, only the coverage for the common module ends up in the aggregated report.

When running with no parallelism, module data is aggregated correctly.

Maven includes scoverage in a list of plugins that might not be thread-safe:

[WARNING] The following plugins are not marked @threadSafe in Backends Config:
[WARNING] org.scoverage:scoverage-maven-plugin:1.4.1
[WARNING] Enable debug to see more precisely which goals are not marked @threadSafe.

Is this a know limitation?

[harrysingh]

+1
I have also seen cases where in multi module project it fails to run test due to threading issues. Is there a plan to make the plugin thread safe?