if (keyValue.length == 2) {
                list.add(new Pair<>(keyValue[0].trim(), keyValue[1].trim()));
            } else if (keyValue.length == 1) {
                list.add(new Pair<>(keyValue[0].trim(), StringUtil.EMPTY));
            } else {
                logger.warn("Unexpected value: {}", s);
            }
        }));

        final List<Pair<String, String>> headerList = responseHeaderMap.remove("*");

        assertEquals(5, response.getNumEntries());
        assertTrue(response.isEndOfSearch());
    }

    @Test
    void testReadDataWireFormat_emptyBuffer() throws Exception {
        // Test reading data from an empty buffer
        byte[] buffer = new byte[10];

        // Set data count to test return value
        response.setDataCount(5);

        // With 0 entries, should return dataCount

        // When
        String result = Hexdump.toHexString(data);

        // Then
        assertNotNull(result);
        assertEquals("000FFF7F80", result);
    }

    @Test
    @DisplayName("Should handle empty byte array")
    void testToHexStringEmpty() {
        // Given
        byte[] data = {};

        // When
        String result = Hexdump.toHexString(data);

        // Then
        assertNotNull(result);

import (
	"iter"
	"unicode"
	"unicode/utf8"
)

// Lines returns an iterator over the newline-terminated lines in the byte slice s.
// The lines yielded by the iterator include their terminating newlines.
// If s is empty, the iterator yields no lines at all.
// If s does not end in a newline, the final yielded line will not end in a newline.
// It returns a single-use iterator.
func Lines(s []byte) iter.Seq[[]byte] {

     *
     * @param uri the URI to preprocess
     * @return the preprocessed URI
     * @throws CrawlerSystemException if the URI is empty
     */
    protected String preprocessUri(final String uri) {
        if (StringUtil.isEmpty(uri)) {
            throw new CrawlerSystemException("The uri is empty.");
        }

        return uri;
    }

    /**
     * Returns the character set for the given SMB1 file.

                        .orElse(false);
        runtime.registerData("editable", editable);
        runtime.registerData("editableClass", editable ? StringUtil.EMPTY : "disabled");
        runtime.registerData("fesenType", fessConfig.getFesenType());
        final String forumLink = systemHelper.getForumLink();
        if (StringUtil.isNotBlank(forumLink)) {

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withEmptyMessage() {
        // Test constructor with empty message
        final String message = "";
        final JobProcessingException exception = new JobProcessingException(message);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());

   * length.
   */
  internal const val PAYLOAD_LONG = 127

  /** Used when an unchecked exception was thrown in a listener. */
  internal const val CLOSE_CLIENT_GOING_AWAY = 1001

  /** Used when an empty close frame was received (i.e., without a status code). */
  internal const val CLOSE_NO_STATUS_CODE = 1005

  fun toggleMask(
    cursor: Buffer.UnsafeCursor,
    key: ByteArray,
  ) {
    var keyIndex = 0

   * @param reason Reason for shutting down or `null`.
   */
  @Throws(IOException::class)
  fun writeClose(
    code: Int,
    reason: ByteString?,
  ) {
    var payload = ByteString.EMPTY
    if (code != 0 || reason != null) {
      if (code != 0) {
        validateCloseCode(code)
      }
      payload =
        Buffer().run {
          writeShort(code)
          if (reason != null) {

        __createdBySelect = false;
    }

    // ===================================================================================
    //                                                                        Empty String
    //                                                                        ============
    protected String convertEmptyToNull(String value) {
        return (value != null && value.length() == 0) ? null : value;