initialTest fails in maestro-extension

[gitting-around]

When running the test with:

mvn test -Dtest=Test#initialTest -DfailIfNoTests=false

I get the following error:

[INFO] Running org.intocps.maestro.fmi2extension.Test
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 3.008 s <<< FAILURE! - in org.intocps.maestro.fmi2extension.Test
[ERROR] initialTest(org.intocps.maestro.fmi2extension.Test)  Time elapsed: 2.935 s  <<< ERROR!
java.lang.RuntimeException: error
        at org.intocps.maestro.fmi2extension.Test.check(Test.java:191)
        at org.intocps.maestro.fmi2extension.Test.initialTest(Test.java:155)

Looking into it, I think it fails here.