*
   * If [Call.cancel] is called while this is blocking, this call will immediately throw.
   *
   * @throws IllegalStateException if the response is closed.
   * @throws IOException if the trailers cannot be loaded, such as if the network connection is
   *     dropped.
   */
  @Throws(IOException::class)
  fun trailers(): Headers = trailersSource.get()

  /**

     */
    public SecureCredentialStorage(char[] masterPassword) throws GeneralSecurityException {
        if (masterPassword == null || masterPassword.length == 0) {
            throw new IllegalArgumentException("Master password cannot be null or empty");
        }

        // Generate salt for key derivation
        this.salt = new byte[SALT_SIZE];
        secureRandom.nextBytes(this.salt);

        // Derive master key from password

  }

  /**
   * Returns the connection already attached to the call if it's eligible for a new exchange.
   *
   * If the call's connection exists and is eligible for another exchange, it is returned. If it
   * exists but cannot be used for another exchange, it is closed and this returns null.
   */
  private fun planReuseCallConnection(): ReusePlan? {
    // This may be mutated by releaseConnectionNoEvents()!

     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("PDF input stream is null. Cannot extract text from null input.");
        }

        final String password = getPassword(params);
        try (PDDocument document = Loader.loadPDF(new RandomAccessReadBuffer(in), password)) {

 * of the Bloom filters that use them, thus they must be preserved as is (no updates allowed, only
 * introduction of new versions).
 *
 * <p>Important: the order of the constants cannot change, and they cannot be deleted - we depend on
 * their ordinal for BloomFilter serialization.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 */
enum BloomFilterStrategies implements BloomFilter.Strategy {

fi

# For Mingw, ensure paths are in UNIX format before anything is touched
if $mingw; then
  [ -n "$JAVA_HOME" ] && [ -d "$JAVA_HOME" ] \
    && JAVA_HOME="$(
      cd "$JAVA_HOME" || (
        echo "cannot cd into $JAVA_HOME." >&2
        exit 1
      )
      pwd
    )"
fi

if [ -z "$JAVA_HOME" ]; then
  javaExecutable="$(which javac)"

   *
   * <p>If {@code maximumSize} is zero, elements will be evicted immediately after being loaded into
   * cache. This can be useful in testing, or to disable caching temporarily.
   *
   * <p>This feature cannot be used in conjunction with {@link #maximumWeight}.
   *
   * @param maximumSize the maximum size of the cache
   * @return this {@code CacheBuilder} instance (for chaining)

/**
 * Utility class for managing crawling parameters using ThreadLocal variables.
 * This class provides methods to set and get various parameters related to the crawling process.
 *
 * <p>This class is final and cannot be instantiated.</p>
 *
 * <p>The following parameters are managed:</p>
 * <ul>
 *   <li>{@link UrlQueue} - The queue of URLs to be crawled.</li>

  // Make a defensive copy and clean it up.
  val namesAndValues: Array<String> = arrayOf(*inputNamesAndValues)
  for (i in namesAndValues.indices) {
    require(namesAndValues[i] != null) { "Headers cannot be null" }
    namesAndValues[i] = inputNamesAndValues[i].trim()
  }

  // Check for malformed headers.
  for (i in namesAndValues.indices step 2) {
    val name = namesAndValues[i]

 */
fun interface Authenticator {
  /**
   * Returns a request that includes a credential to satisfy an authentication challenge in
   * [response]. Returns null if the challenge cannot be satisfied.
   *
   * The route is best effort, it currently may not always be provided even when logically
   * available. It may also not be provided when an authenticator is re-used manually in an