fixture.withWorkActionClassInBuildScript()

        WorkerExecutorFixture.WorkActionClass workerThatChangesContextClassLoader = fixture.getWorkActionThatCreatesFiles("ClassLoaderChangingWorker")
        workerThatChangesContextClassLoader.with {
            action += """
                URL[] urls = parameters.files.collect { new File(getParameters().getOutputDir(), it).toURI().toURL() }