ProviderMismatchException and gradle testFixtures

Question

Ok, so I had this problem and now I'm getting a ProviderMismatchException I understand the problem, and "a" fix, but since my problem is specifically related to testing in Gradle, I'm wondering if there's a better fix that doesn't involve change my "production" code.

just as an FYI, this is my code currently that lives in as part of the testFixture

  default Path getConfigDir() {
    return Try.ofSupplier( this::getClass )
      .map( Class::getClassLoader )
      .mapTry( cl -> cl.getResource( "config" ) )
      .filter( Objects::nonNull, t -> new IOException( "unable to find resource 'config'" ) )
      .mapTry( URL::toURI )
      .peek( uri -> LogManager.getLogger().error( "{}", uri ) )
      .mapTry( uri -> FileSystems.newFileSystem(uri, Map.of()).getPath("." ) )
      .get();
  }

all that's relevant for gradle.

plugins {
  application
  `java-test-fixtures`
  checkstyle
  distribution

later it does this

    var filename = moduleType + ".yml";
    var relPathToConfigFIle = Path.of( language ).resolve( filename );
    var cwdConfigFile = configDir.resolve( relPathToConfigFIle ); // exception
    var home = SystemUtils.getUserHome().toPath();

seems to be failing on the commons-lang3 call to getUserHome() currently.

I'm thinking maybe there's some way for Gradle not to use the jar?