Maven tests are running well locally (OSX) but not running at all on remove CI machine

I have some Maven tests suite using Junit 4.12, that running well using 'mvn test' locally on my Mac, but not running at all on remote CI machine:

[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ AndroidAutomationTests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/circleci/project/AndroidAutomaticTests/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ AndroidAutomationTests ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ AndroidAutomationTests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/circleci/project/AndroidAutomaticTests/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ AndroidAutomationTests ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.22.0:test (default-test) @ AndroidAutomationTests ---
[INFO]
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.619 s
[INFO] Finished at: 2019-10-17T07:33:04Z
[INFO] ------------------------------------------------------------------------

Both Maven versions are 3.6.0, and it's exactly the same project and branch.
Any idea?
Thanks!