so now I have a weird error while running tests

Error parsing specs: FATAL: Error parsing spec 'com.mediarithmics.api.common.play.ControllerUtilsTest': Error linking

and -ldebug do not give much more context on who emited the error or why:

[run]                                                                                                                                                                                                                                          DEBUG] Executing: /usr/bin/java -Xmx256m -cp .pants.d/test/junit/_runs/97671dfe948b6db927b4bd6b53bc9b61f8cb3b67/combined/all/tmpET4v3E.jar org.pantsbuild.tools.junit.ConsoleRunner -output-mode=NONE -outdir /home/lorilan/dev/mediarithmics-platform-2/.pants.d/test/junit/_runs/97671dfe948b6db927b4bd6b53bc9b61f8cb3b67/combined/all -default-concurrency SERIAL -parallel-threads 12 -xmlreport @/tmp/tmpeKP2a6 args={} at cwd=/home/lorilan/dev/mediarithmics-platform-2                                                                                                                                                                                                                                          Error parsing specs: FATAL: Error parsing spec 'com.mediarithmics.api.common.play.ControllerUtilsTest': Error linking com.mediarithmics.api.common.play.ControllerUtilsTest.                                                                                                                                                                                                                                                                                                                                     JUnit subprocess exited with result (1)DEBUG] Creating argfile /tmp/tmpBuCf1z with contents …

Does anybody have any clue of what it can be ?