import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

/**
 * Utility class for text normalization and processing.
 *
 * This class provides methods to normalize text by reading characters from a provided Reader
 * and processing them according to specific rules. The main functionality is encapsulated
 * within the nested {@link TextNormalizeContext} class.
 *

        firstLineMap.put("index", firstLineInnerMap);

        final Map<String, Object> secondLine = new HashMap<>();

        secondLine.put("text", item.getText());

        // reading
        final String[][] readings = item.getReadings();
        for (int i = 0; i < readings.length; i++) {
            secondLine.put("reading_" + i, readings[i]);
        }

     *
     * @return the response body as an InputStream, or null if no response body is available
     * @throws IORuntimeException if an I/O error occurs while reading the response body file
     */
    public InputStream getResponseBody() {
        if (responseBodyBytes != null) {
            return new ByteArrayInputStream(responseBodyBytes);
        }

        private final int maxLineBuffer;

        /**
         * Constructs a new InputStreamThread.
         * @param is The InputStream to read from.
         * @param charset The charset to use for reading.
         * @param maxOutputLineBuffer The maximum number of lines to buffer.
         */
        public InputStreamThread(final InputStream is, final String charset, final int maxOutputLineBuffer) {
            try {

    }

    @Test
    public void testConstructorWithNullArrays() {
        // Test constructor handles null arrays gracefully
        String[] text = { "text" };
        String[][] readings = { { "reading" } };

        SuggestItem item = new SuggestItem(text, readings, null, 0L, 0L, 1.0f, null, null, null, SuggestItem.Kind.DOCUMENT);

        assertNotNull(item);
        assertEquals("text", item.getText());

     *
     * @param inputStream the input stream to read from
     * @return the detected character set name, or null if not found
     * @throws CrawlingAccessException if an error occurs while reading the content
     */
    protected String loadCharset(final InputStream inputStream) {
        BufferedInputStream bis = null;
        String encoding = null;
        try {