return JavaLowerCase.INSTANCE;
  }

  /**
   * Determines whether a character is an ISO control character as specified by {@link
   * Character#isISOControl(char)}.
   *
   * <p>All ISO control codes are on the BMP and thus supported by this API.
   *
   * @since 19.0 (since 1.0 as constant {@code JAVA_ISO_CONTROL})
   */
  public static CharMatcher javaIsoControl() {
    return JavaIsoControl.INSTANCE;
  }

    return JavaLowerCase.INSTANCE;
  }

  /**
   * Determines whether a character is an ISO control character as specified by {@link
   * Character#isISOControl(char)}.
   *
   * <p>All ISO control codes are on the BMP and thus supported by this API.
   *
   * @since 19.0 (since 1.0 as constant {@code JAVA_ISO_CONTROL})
   */
  public static CharMatcher javaIsoControl() {
    return JavaIsoControl.INSTANCE;
  }

    assertEquals(hashFunction.hashLong(l), hashFunction.newHasher().putLong(l).hash());
  }

  private static final ImmutableSet<Charset> CHARSETS =
      ImmutableSet.of(
          Charsets.ISO_8859_1,
          Charsets.US_ASCII,
          Charsets.UTF_16,
          Charsets.UTF_16BE,
          Charsets.UTF_16LE,
          Charsets.UTF_8);

    DataInput in = new DataInputStream(new ByteArrayInputStream(data));

    /* Read in various values NORMALLY */
    byte[] b = new byte[6];
    in.readFully(b);
    assertEquals("r\u00C9sum\u00C9".getBytes(Charsets.ISO_8859_1), b);
  }

  @SuppressWarnings("deprecation") // testing a deprecated method
  public void testWriteBytes_discardHighOrderBytes() throws IOException {

          // Defeat branch predictor for: c < 0x80 ; branch taken 50% of the time.
          return 0x100;
        } else if (userFriendly.matches("(?i)(?:Greek|Cyrillic|European|ISO.?8859)")) {
          // Mostly 2-byte UTF-8 sequences - "European" text
          return 0x800;
        } else if (userFriendly.matches("(?i)(?:Chinese|Han|Asian|BMP)")) {
          // Mostly 3-byte UTF-8 sequences - "Asian" text

    assertEquals(hashFunction.hashLong(l), hashFunction.newHasher().putLong(l).hash());
  }

  private static final ImmutableSet<Charset> CHARSETS =
      ImmutableSet.of(
          Charsets.ISO_8859_1,
          Charsets.US_ASCII,
          Charsets.UTF_16,
          Charsets.UTF_16BE,
          Charsets.UTF_16LE,
          Charsets.UTF_8);