apply {
      encodings[ 0x0] = encoding // Null character
      encodings[ 0x1] = encoding // Start of Header
      encodings[ 0x2] = encoding // Start of Text
      encodings[ 0x3] = encoding // End of Text
      encodings[ 0x4] = encoding // End of Transmission
      encodings[ 0x5] = encoding // Enquiry
      encodings[ 0x6] = encoding // Acknowledgment
      encodings[ 0x7] = encoding // Bell

  }

  // Modified encoding generators

  /**
   * Returns an encoding that behaves equivalently to this encoding, but omits any padding
   * characters as specified by <a href="http://tools.ietf.org/html/rfc4648#section-3.2">RFC 4648
   * section 3.2</a>, Padding of Encoded Data.
   */
  public abstract BaseEncoding omitPadding();

  /**

    assertThat(encoding.canDecode(encoded)).isTrue();
    assertThat(encoding.decode(encoded)).isEqualTo(decoded);
  }

  private static void assertFailsToDecode(BaseEncoding encoding, String cannotDecode) {
    assertFailsToDecode(encoding, cannotDecode, null);
  }

  private static void assertFailsToDecode(
      BaseEncoding encoding, String cannotDecode, @Nullable String expectedMessage) {

    codePointString: String,
    encoding: UrlComponentEncodingTester.Encoding,
    component: Component,
  ) {
    testToUrl(codePoint, encoding, component)
    testFromUrl(codePoint, encoding, component)
    testUri(codePoint, codePointString, encoding, component)
  }

  private fun testToUrl(
    codePoint: Int,
    encoding: UrlComponentEncodingTester.Encoding,
    component: Component,
  ) {

    assertThat(encoding.canDecode(encoded)).isTrue();
    assertThat(encoding.decode(encoded)).isEqualTo(decoded);
  }

  private static void assertFailsToDecode(BaseEncoding encoding, String cannotDecode) {
    assertFailsToDecode(encoding, cannotDecode, null);
  }

  private static void assertFailsToDecode(
      BaseEncoding encoding, String cannotDecode, @Nullable String expectedMessage) {

        final String encoding = xmlExtractor.getEncoding(bis);
        CloseableUtil.closeQuietly(bis);
        assertEquals("Shift_JIS", encoding);
    }

    public void test_getEncoding_utf8bom() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/xml/test_utf8bom.xml");
        final BufferedInputStream bis = new BufferedInputStream(in);
        final String encoding = xmlExtractor.getEncoding(bis);

     * @param encoding
     *            エンコーディング。{@literal null}や空文字列であってはいけません
     * @return ストリームへ出力する{@link Writer}
     */
    public static Writer create(final OutputStream os, final String encoding) {
        assertArgumentNotNull("os", os);
        assertArgumentNotEmpty("encoding", encoding);

        try {
            return new OutputStreamWriter(os, encoding);
        } catch (final IOException e) {

     * @param encoding
     *            エンコーディング。{@literal null}や空文字列であってはいけません
     * @param out
     *            ライター
     * @return コピーした文字数。{@literal null}であってはいけません
     */
    public static int copy(final InputStream in, final String encoding, final Writer out) {
        assertArgumentNotNull("in", in);
        assertArgumentNotEmpty("encoding", encoding);
        assertArgumentNotNull("out", out);

        }
        matcher.appendTail(sb);
        return sb.toString().replaceAll("\\s+", " ").trim();
    }

    public String getEncoding() {
        return encoding;
    }

    public void setEncoding(final String encoding) {
        this.encoding = encoding;
    }

    /**
     * @return Returns the preloadSizeForCharset.
     */
    public int getPreloadSizeForCharset() {

     *            入力ストリーム。{@literal null}であってはいけません
     * @param encoding
     *            入力ストリームのエンコーディング。{@literal null}や空文字列であってはいけません
     * @return ファイルかへ出力する{@link Reader}
     */
    public static InputStreamReader create(final InputStream is, final String encoding) {
        assertArgumentNotNull("is", is);
        assertArgumentNotEmpty("encoding", encoding);

        try {
            return new InputStreamReader(is, encoding);