if I do

./pants test my_target

it works but it appears when I do

./pants test ./::

Well, it's due to an underlying jvm `LinkageError`: https://github.com/pantsbuild/pants/blob/12711f2dc295fdda526cf9fab17146b87154ed08/src/java/org/pantsbuild/tools/junit/impl/SpecParser.java#L91-L95 That implies, in the :: case - where you attempt to combine all repo classpaths - some element of the classpath needed by

com.mediarithmics.api.common.play.ControllerUtilsTest

has an unexpected api - ie, it's the wrong version, ie an incompatible version forced by some other part of your codebase directly or indirectly.

Thank you for the pointer !

Great - thanks for digging. It's hard to maintain an unconflicted global classpath, and this works around your conflict. You still have the conflict though and, if possible ~easily, its good to solve those. It's very likely not possible or practical though.

well I'm not sure we need it, the linking errors happens only in test sources … and anyway I have to go forward with the next issue XD