*/
  @Deprecated @J2ktIncompatible @GwtIncompatible // Charset not supported by GWT
  public static final Charset US_ASCII = StandardCharsets.US_ASCII;

  /**
   * ISO-8859-1: ISO Latin Alphabet Number 1 (ISO-LATIN-1).
   *
   * @deprecated Use {@link StandardCharsets#ISO_8859_1} instead.
   */
  @Deprecated public static final Charset ISO_8859_1 = StandardCharsets.ISO_8859_1;

  /**

    /**
     * ISO 8601 basic format: yyyyMMdd'T'HHmmss.SSSZ
     */
    public static final String DATE_FORMAT_ISO_8601_BASIC = "yyyyMMdd'T'HHmmss.SSSZ";

    /**
     * ISO 8601 extended format: yyyy-MM-dd'T'HH:mm:ss.SSSZ
     */
    public static final String DATE_FORMAT_ISO_8601_EXTEND = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";

    /**
     * ISO 8601 extended UTC format: yyyy-MM-dd'T'HH:mm:ss.SSS'Z'

        assertEquals("test/path/osdd.xml", osddHelper.osddPath);
    }

    public void test_setEncoding() {
        final OsddHelper osddHelper = new OsddHelper();
        osddHelper.setEncoding("ISO-8859-1");
        assertEquals("ISO-8859-1", osddHelper.encoding);
    }

    public void test_setContentType() {
        final OsddHelper osddHelper = new OsddHelper();
        osddHelper.setContentType("application/xml");

        assertSame(proxy, request.proxy());
    }

    @Test
    public void testEncodingMethod() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");
        String encoding = "ISO-8859-1";

        CurlRequest result = request.encoding(encoding);

        assertSame(request, result); // Fluent API
        assertEquals(encoding, request.encoding());
    }

    @Test

    @Test
    public void testGetContentAsStringWithDifferentEncoding() throws IOException {
        CurlResponse response = new CurlResponse();
        response.setEncoding("ISO-8859-1");
        String testContent = "Hello, World!";
        byte[] data = testContent.getBytes("ISO-8859-1");
        ContentCache cache = new ContentCache(data);
        response.setContentCache(cache);

        String content = response.getContentAsString();

     * Maximum length is 10000 characters.
     */
    @Size(max = 10000)
    public String parameterName;

    /**
     * The expiration date and time for the access token.
     * Must be in ISO 8601 format: YYYY-MM-DDTHH:MM:SS
     */
    @Pattern(regexp = "[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]T[0-9][0-9]:[0-9][0-9]:[0-9][0-9]")
    public String expires;

    /**

        .isNotEqualTo(HASH_FN.hashUnencodedChars(stringB));
    assertThat(fingerprint(stringA.getBytes(UTF_8)))
        .isNotEqualTo(fingerprint(stringB.getBytes(UTF_8)));

    // ISO 8859-1 only has 0-255 (ubyte) representation so throws away UTF-8 characters
    // greater than 127 (ie with their top bit set).
    // Don't attempt to do this in real code.
    assertEquals(

    assertEquals(Charset.forName("US-ASCII"), Charsets.US_ASCII);
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset
  public void testIso88591() {
    assertEquals(Charset.forName("ISO-8859-1"), Charsets.ISO_8859_1);
  }

  public void testUtf8() {
    assertEquals(Charset.forName("UTF-8"), Charsets.UTF_8);
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset

            return new Date(time);
        } catch (final Exception e) {
            return null;
        }
    }

    /**
     * Formats a Date object to ISO datetime string format in UTC timezone.
     *
     * @param date the date to format
     * @return formatted date string, or empty string if date is null
     */
    public static String formatDate(final Date date) {

        .isNotEqualTo(HASH_FN.hashUnencodedChars(stringB));
    assertThat(fingerprint(stringA.getBytes(UTF_8)))
        .isNotEqualTo(fingerprint(stringB.getBytes(UTF_8)));

    // ISO 8859-1 only has 0-255 (ubyte) representation so throws away UTF-8 characters
    // greater than 127 (ie with their top bit set).
    // Don't attempt to do this in real code.
    assertEquals(