void testJoinWithMixedCharSequenceTypes() {
        String str = "string";
        StringBuilder builder = new StringBuilder("builder");
        StringBuffer buffer = new StringBuffer("buffer");
        String result = StringUtil.join(",", str, builder, buffer);
        assertEquals("string,builder,buffer", result);
    }

    @ParameterizedTest

@ExtendWith(MockitoExtension.class)
class WinErrorTest {

    // Helper to lookup a message by code using the production arrays
    private static Optional<String> lookupMessage(int code) {
        int[] codes = WinError.WINERR_CODES;
        String[] msgs = WinError.WINERR_MESSAGES;
        for (int i = 0; i < codes.length; i++) {
            if (codes[i] == code) {
                return Optional.of(msgs[i]);
            }

{
  "dynamic_templates": [
    {
      "strings": {
        "mapping": {
          "type": "keyword"
        },
        "match": "*",
        "match_mapping_type": "string"
      }
    }
  ],
  "properties": {
    "@timestamp": {
      "type": "date",
      "format": "epoch_millis"
    },
    "docFreq": {
      "type": "long"
    },
    "fields": {
      "type": "keyword"
    },
    "kinds": {

        /** Bug report properties. */
        protected List<Map<String, String>> bugReportProps;

        /**
         * Sets the environment properties.
         * @param envProps The environment properties.
         * @return This ApiSystemInfoResponse instance.
         */
        public ApiSystemInfoResponse envProps(final List<Map<String, String>> envProps) {
            this.envProps = envProps;

        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")
        protected String sessionId;

        /** The name of the suggest creator instance. */
        @Option(name = "-n", aliases = "--name", metaVar = "name", usage = "Name")
        protected String name;

        /** The path to the properties file for configuration. */

    protected String sessionId;

    /** The HTTP method used for the URL in the queue. */
    protected String method;

    /** The URL from the queue. */
    protected String url;

    /** The metadata associated with the URL queue. */
    protected String metaData;

    /** The encoding of the URL queue. */
    protected String encoding;

        // Arrange: program send() to simulate first, next, next(NO_MORE_FILES)
        List<String[]> batches = new ArrayList<>();
        batches.add(new String[] { ".", "..", "a", "b" }); // first batch, dot entries filtered
        batches.add(new String[] { "c" }); // second batch
        batches.add(new String[] {}); // last -> NO_MORE_FILES

        // send() answer that mutates the provided response

        }
    }

    /**
     * Validate string from server response
     *
     * @param str string to validate
     * @param maxLength maximum allowed length
     * @param fieldName field name for error messages
     * @throws SmbException if string is invalid
     */
    public void validateString(String str, int maxLength, String fieldName) throws SmbException {
        totalValidations.incrementAndGet();

    protected volatile Map<String, Queue<UrlQueueImpl<Long>>> urlQueueMap = new HashMap<>();

    /** Map of session IDs to access result maps for storing crawling results. */
    protected volatile Map<String, Map<String, AccessResultImpl<Long>>> sessionMap = new HashMap<>();

    /** Map of session IDs to include URL patterns for filtering URLs. */
    protected volatile Map<String, List<Pattern>> includeUrlPatternMap = new HashMap<>();

{
  "dynamic_templates": [
    {
      "strings": {
        "mapping": {
          "type": "keyword"
        },
        "match": "*",
        "match_mapping_type": "string"
      }
    }
  ],
  "properties": {
    "settingsType": {
      "type": "keyword"
    },
    "fieldName": {
      "type": "keyword"
    },
    "readingAnalyzer": {
      "type": "keyword"
    },
    "readingTermAnalyzer": {