static boolean assertExtraction(String output, String javaBin) {
        Matcher matcher = JDK_HOME_LOGLINE.matcher(output);
        assert matcher.find() == true;
        String jdkHome = matcher.group(1);
        Path javaPath = Paths.get(jdkHome, javaBin);
        assert Files.exists(javaPath) == true;
        true
    }

    private static String urlPath(final String vendor,

    @Test
    void testEnvironmentVariablesAreInterpolated() throws Exception {
        Properties props = new Properties();
        props.put("key", "${env.testKey}");
        Xpp3Dom configurationChild = new Xpp3Dom("jdkHome");
        configurationChild.setValue("${env.testKey}");
        Xpp3Dom configuration = new Xpp3Dom("configuration");
        configuration.addChild(configurationChild);