// indicates if this is the last version.
func (x *xlMetaV2) DeleteVersion(fi FileInfo) (string, error) {
	// This is a situation where versionId is explicitly
	// specified as "null", as we do not save "null"
	// string it is considered empty. But empty also
	// means the version which matches will be purged.
	if fi.VersionID == nullVersionID {
		fi.VersionID = ""
	}

	var uv uuid.UUID

    assertThat(allAddresses).isNotEmpty()
  }

  private fun dnsQuery(hostname: String): Pair<List<InetAddress>, Exception?> {
    val allAddresses = mutableListOf<InetAddress>()
    var exception: Exception? = null
    val latch = CountDownLatch(1)

    // assumes an IPv4 address
    AndroidAsyncDns.IPv4.query(
      hostname,
      object : AsyncDns.Callback {
        override fun onResponse(

   * algorithms should document their behavior in the presence of duplicates.
   *
   * <p>The elements of the returned {@code Iterable} must each be:
   *
   * <ul>
   *   <li>Non-null
   *   <li>Usable as {@code Map} keys (see the Guava User Guide's section on <a
   *       href="https://github.com/google/guava/wiki/GraphsExplained#graph-elements-nodes-and-edges">
   *       graph elements</a> for details)

      dummy ^= JOINER_ON_CHARACTER.join(components).length();
    }
    return dummy;
  }

  /**
   * Mimics what the {@link Joiner} class does internally when no extra options like ignoring {@code
   * null} values are used.
   */
  @Benchmark
  int joinerInlined(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      StringBuilder sb = new StringBuilder();

 *
 * <p>The {@link #rowKeySet} method returns a {@link SortedSet} and the {@link #rowMap} method
 * returns a {@link SortedMap}, instead of the {@link Set} and {@link Map} specified by the {@link
 * Table} interface.
 *
 * <p>Null keys and values are not supported.
 *
 * <p>See the {@link StandardTable} superclass for more information about the behavior of this
 * class.
 *
 * @author Jared Levy
 */
@GwtCompatible

   * AllowConcurrentEvents} annotation.
   */
  private static boolean isDeclaredThreadSafe(Method method) {
    return method.getAnnotation(AllowConcurrentEvents.class) != null;
  }

  /**
   * Subscriber that synchronizes invocations of a method to ensure that only one thread may enter
   * the method at a time.
   */
  @VisibleForTesting

            @Override
            public Path getRootDirectory() {
                return rootDirectory;
            }

            @Override
            public URL getURL() {
                return null;
            }

            @Override
            public InputStream getInputStream() {
                return inputStream;
            }

            public Reader getReader() {

            assertTrue(robotsTxt.allows("/foo/bar/index.html", userAgent));
            assertEquals(1, robotsTxt.getCrawlDelay(userAgent));
        }

        for (String userAgent : new String[] { "UnknownBot", "", " ", null }) {
            assertTrue(robotsTxt.allows("/aaa", userAgent));
            assertFalse(robotsTxt.allows("/private/", userAgent));
            assertFalse(robotsTxt.allows("/private/index.html", userAgent));

      Request.Builder()
        .url("https://square.com")
        .tag("a")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

  @Test
  fun objectTag() {

  return 0
}

# checkUserExists ()
# Check if the user exists, by using the exit code of `mc admin user info`
checkUserExists() {
  CMD=$(${MC} admin user info myminio $(head -1 $MINIO_ACCESSKEY_SECRETKEY_TMP) > /dev/null 2>&1)
  return $?
}

# createUser ($policy)
createUser() {
  POLICY=$1
  #check accessKey_and_secretKey_tmp file
  if [[ ! -f $MINIO_ACCESSKEY_SECRETKEY_TMP ]];then
    echo "credentials file does not exist"