/**
     * OS Family
     */
    public static final String OS_FAMILY;

    /**
     * Boolean indicating if the running OS is a Windows system.
     */
    public static final boolean IS_WINDOWS;

    /**
     * OS family that can be tested for. {@value}
     */
    private static final String FAMILY_WINDOWS = "windows";

    /**
     * OS family that can be tested for. {@value}
     */

     */
    public static void addEnvVars(Properties props) {
        if (props != null) {
            if (envVars == null) {
                Properties tmp = new Properties();
                boolean caseSensitive = !Os.IS_WINDOWS;
                for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
                    String key = "env."

        return null;
    }

    private static Path findTool(String toolName, Path installDir) {
        Path bin = installDir.resolve("bin"); // NOI18N
        if (Files.isDirectory(bin)) {
            if (Os.IS_WINDOWS) {
                Path tool = bin.resolve(toolName + ".exe");
                if (Files.exists(tool)) {
                    return tool;
                }
            }
            Path tool = bin.resolve(toolName);

                                null);
                        result.getProblems().add(problem);
                        continue;
                    }

                    if (Os.IS_WINDOWS) {
                        // we don't canonicalize on unix to avoid interfering with symlinks
                        try {
                            moduleFile = moduleFile.getCanonicalFile();

        if (isWindows()) {
            return new String[]{"wmic", "process", "get", "processid,commandline"};
        } else if (isMacOS()) {
            return new String[]{"ps", "x", "-o", "pid,command"};
        } else {
            return new String[]{"ps", "x", "-o", "pid,cmd"};
        }
    }

    private static boolean isWindows() {

    @Override
    protected void doStop() {
      notifyFailed(new IllegalStateException("stop failure"));
    }
  }

  public void testServiceStartupTimes() {
    if (isWindows() && isJava8()) {
      // Flaky there: https://github.com/google/guava/pull/6731#issuecomment-1736298607
      return;
    }
    Service a = new NoOpDelayedService(150);
    Service b = new NoOpDelayedService(353);

    MoreFiles.createParentDirectories(path);
    assertTrue(Files.exists(parent));
    assertTrue(Files.exists(grandparent));
  }

  public void testCreateParentDirectories_noPermission() {
    if (isWindows()) {
      return; // TODO: b/136041958 - Create/find a directory that we don't have permissions on?
    }
    Path file = root().resolve("parent/nonexistent.file");
    Path parent = file.getParent();

      assertThat(temp.listFiles()).isEmpty();
      File child = new File(temp, "child");
      assertThat(child.createNewFile()).isTrue();
      assertThat(child.delete()).isTrue();

      if (!isAndroid() && !isWindows()) {
        PosixFileAttributes attributes =
            java.nio.file.Files.getFileAttributeView(temp.toPath(), PosixFileAttributeView.class)
                .readAttributes();
        assertThat(attributes.permissions())

      file = out.getFile();
      assertEquals(dataSize, file.length());
      assertTrue(file.exists());
      assertThat(file.getName()).contains("FileBackedOutputStream");
      if (!isAndroid() && !isWindows()) {
        PosixFileAttributes attributes =
            java.nio.file.Files.getFileAttributeView(file.toPath(), PosixFileAttributeView.class)
                .readAttributes();

      assertThat(temp.listFiles()).isEmpty();
      File child = new File(temp, "child");
      assertThat(child.createNewFile()).isTrue();
      assertThat(child.delete()).isTrue();

      if (!isAndroid() && !isWindows()) {
        PosixFileAttributes attributes =
            java.nio.file.Files.getFileAttributeView(temp.toPath(), PosixFileAttributeView.class)
                .readAttributes();
        assertThat(attributes.permissions())