final Matcher matcher = pattern.matcher(value);
        while (matcher.find()) {
            final String key = matcher.group(2);
            String replacement = System.getProperty(key);
            if (replacement == null) {
                replacement = matcher.group(1);
            }

        Pattern pidPattern = isWindows() ? WINDOWS_PID_PATTERN : UNIX_PID_PATTERN;

        psOutput.forEach(line -> {
            Matcher commandLineArgsMatcher = commandLineArgsPattern.matcher(line);
            Matcher pidMatcher = pidPattern.matcher(line);
            if (commandLineArgsMatcher.find() && pidMatcher.find()) {
                String pid = pidMatcher.group(1);
                if (!MY_PID.equals(pid)) {

            throw new IllegalStateException("Malformed distributionUrl line: " + distributionUrl);
        }
        String url = distributionUrl.substring(idx + 1).trim();

        Matcher m = WRAPPER_VERSION_EXTRACT.matcher(url);
        if (!m.matches()) {
            throw new IllegalStateException("Could not extract wrapper version from distributionUrl: " + url);
        }
        return m.group(1);
    }

    }

    @Override
    public Optional<String> module() {
        return Optional.ofNullable(moduleName);
    }

    @Override
    public PathMatcher matcher(Collection<String> defaultIncludes, boolean useDefaultExcludes) {
        return null; // Not used for this test.
    }

    @Test
    void testDirectory() {

 */
@GwtCompatible
final class Platform {
  private static final PatternCompiler patternCompiler = loadPatternCompiler();

  private Platform() {}

  static CharMatcher precomputeCharMatcher(CharMatcher matcher) {
    return matcher.precomputedInternal();
  }

  static <T extends Enum<T>> Optional<T> getEnumIfPresent(Class<T> enumClass, String value) {
    WeakReference<? extends Enum<?>> ref = Enums.getEnumConstants(enumClass).get(value);

        final Set<String> missingClasses = new TreeSet<>();
        Matcher missingMatcher = MISSING_CLASS_PATTERN.matcher(forbiddenApisOutput);
        while (missingMatcher.find()) {
            missingClasses.add(missingMatcher.group(1));
        }

        final Set<String> violationsClasses = new TreeSet<>();
        Matcher violationMatcher = VIOLATION_PATTERN.matcher(forbiddenApisOutput);
        while (violationMatcher.find()) {

                throw new IllegalArgumentException("Failed to read " + f + " as UTF_8", e);
            }
            List<Integer> invalidLines = IntStream.range(0, lines.size())
                .filter(i -> allPatterns.matcher(lines.get(i)).find())
                .boxed()
                .collect(Collectors.toList());

            URI baseUri = getRootDir().orElse(projectLayout.getProjectDirectory().getAsFile()).get().toURI();

 */
@GwtCompatible
final class Platform {
  private static final PatternCompiler patternCompiler = loadPatternCompiler();

  private Platform() {}

  static CharMatcher precomputeCharMatcher(CharMatcher matcher) {
    return matcher.precomputedInternal();
  }

  static <T extends Enum<T>> Optional<T> getEnumIfPresent(Class<T> enumClass, String value) {
    WeakReference<? extends Enum<?>> ref = Enums.getEnumConstants(enumClass).get(value);

        Predicate<Artifact> predGroupId = a -> groupId.matches(createPathProxy(a.getGroupId()));
        Predicate<Artifact> predArtifactId = a -> artifactId.matches(createPathProxy(a.getArtifactId()));
        return predGroupId.and(predArtifactId);
    }

    /**
     * In order to reuse the glob matcher from the filesystem, we need

            if (artifact.isSnapshot()) {
                Matcher matcher = Artifact.VERSION_FILE_PATTERN.matcher(artifact.getVersion());
                if (matcher.matches()) {
                    Snapshot snapshot = new Snapshot();
                    snapshot.setTimestamp(matcher.group(2));
                    try {
                        snapshot.setBuildNumber(Integer.parseInt(matcher.group(3)));