// file
        assertUrlLink("file:/home/taro/test.txt", //
                "file://home/taro/test.txt");
        assertUrlLink("file:/home/taro/あ.txt", //
                "file://home/taro/あ.txt");
        assertUrlLink("file:/home/taro/%E3%81%82.txt", //
                "file://home/taro/あ.txt");

        // smb->file
        assertUrlLink("smb:/home/taro/test.txt", //
                "file://home/taro/test.txt");

        pathMapping.setRegex("file:///home/");
        pathMapping.setReplacement("http://localhost/");
        pathMappingList.add(pathMapping);

        pathMappingHelper.cachedPathMappingList = pathMappingList;

        String text = "\"file:///home/\"";
        assertEquals("\"http://localhost/\"", pathMappingHelper.replaceUrls(text));

        text = "\"file:///home/user/\"";

  PATH_SEPARATOR("path.separator"),

  /** Line separator ("\n" on UNIX). */
  LINE_SEPARATOR("line.separator"),

  /** User's account name. */
  USER_NAME("user.name"),

  /** User's home directory. */
  USER_HOME("user.home"),

  /** User's current working directory. */
  USER_DIR("user.dir");

  private final String key;

  StandardSystemProperty(String key) {
    this.key = key;
  }

    /**
     * <code>user.dir</code> システムプロパティ。
     */
    public static final String USER_DIR = System.getProperty("user.dir");

    /**
     * <code>user.home</code> システムプロパティ。
     */
    public static final String USER_HOME = System.getProperty("user.home");

    public static long currentTimeMillis() {
        // TODO provider
        return System.currentTimeMillis();
    }

        Path userHome = Paths.get(properties.get("user.home"));
        Path mavenUserHome = userHome.resolve(".m2");
        Path mavenSystemHome = properties.containsKey("maven.home")
                ? Paths.get(properties.get("maven.home"))
                : properties.containsKey("env.MAVEN_HOME") ? Paths.get(properties.get("env.MAVEN_HOME")) : null;

                if (mavenArtifactJar.matcher(filename).matches()) {
                    Process p = Runtime.getRuntime().exec(new String[] {
                        Paths.get(System.getProperty("java.home"), "bin/java").toString(),
                        "-jar",
                        file.toAbsolutePath().toString(),
                        "5.32",
                        "5.27"
                    });

 * This is not correct as it should do this with the built distribution instead.
 *
 * Doing it correctly would require running a Gradle build with the full
 * distribution and extracting the generated api jar from its Gradle user home,
 * slowing down building documentation.
 *
 * All this would be so much simpler if the Kotlin extensions to the Gradle API
 * were generated at build time instead.
 *

        System.out.println(SystemUtil.OS_NAME);
        System.out.println(SystemUtil.JAVA_IO_TMPDIR);
        System.out.println(SystemUtil.USER_DIR);
        System.out.println(SystemUtil.USER_HOME);
    }

          "www.leguide.ma",
          "site.ma",
          "some.org.mk",
          "site.mk",
          "site.tv",
          "site.us",
          "www.odev.us",
          "www.GOOGLE.com",
          "www.com",
          "google.com",
          "www7.google.co.uk",
          "google.Co.uK",
          "jobs.kt.com.",
          "home.netscape.com",
          "web.stanford.edu",
          "stanford.edu",

        exp = "example.com/index.html";
        assertEquals(exp, transformer.getSiteOnFile(url, "UTF-8"));

        url = "file:/home/user";
        exp = "/home/user";
        assertEquals(exp, transformer.getSiteOnFile(url, "UTF-8"));

        url = "file:/c:/home/user";
        exp = "c:\\home\\user";
        assertEquals(exp, transformer.getSiteOnFile(url, "UTF-8"));

        url = "file:/c:/";
        exp = "c:\\";