Path issue on Windows when running unit tests.

[BB-piotr]

Unit tests on windows fails because of this:

[ERROR] Failures:
[ERROR]   GeneratorTests.testBoatDocsWithNonExistingMarkersDirectory:162
Expecting:
  <java.nio.file.InvalidPathException: Trailing char < > at index 0:  \43243 \d a1r1♦t 11t134 t835jyz>
to be an instance of:
  <org.apache.maven.plugin.MojoExecutionException>
but was:
  <"java.nio.file.InvalidPathException: Trailing char < > at index 0:  \43243 \d a1r1♦t 11t134 t835jyz
        at java.base/sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:172)