* Provides utility methods for URL processing, site extraction, data mapping,
 * and field configuration handling during the document transformation process.
 */
public interface FessTransformer {

    /**
     * Synchronized LRU cache for storing parent URL encodings.
     * Maps session+parent URL keys to their corresponding character encodings.
     */
    Map<String, String> parentEncodingMap = Collections.synchronizedMap(new LruHashMap<>(1000));

     * every 60 seconds to balance performance with up-to-date plugin discovery.
     *
     * @return array of data store names sorted alphabetically, never null
     */
    public synchronized String[] getDataStoreNames() {
        final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
        if (now - lastLoadedTime > 60000L) {
            final List<String> nameList = loadDataStoreNameList();

     * @throws DcerpcException if the bind operation fails
     * @throws IOException if an I/O error occurs
     */
    public void bind() throws DcerpcException, IOException {
        synchronized (this) {
            try {
                state = 1;
                final DcerpcMessage bind = new DcerpcBind(binding, this);
                sendrecv(bind);
            } catch (final IOException ioe) {

  public void testOrderingUnmodifiable() {
    SetMultimap<String, Integer> multimap = initializeMultimap5();
    assertOrderingReadOnly(Multimaps.unmodifiableMultimap(multimap));
  }

  @J2ktIncompatible // Synchronized
  public void testOrderingSynchronized() {
    SetMultimap<String, Integer> multimap = initializeMultimap5();
    assertOrderingReadOnly(synchronizedMultimap(multimap));
  }

  @J2ktIncompatible

   *
   * <p>This method is not type-safe, as it may be called on elements that are not mutually
   * comparable.
   *
   * <p>This method is safe to use even when {@code elements} is a synchronized or concurrent
   * collection that is currently being modified by another thread.
   *
   * @throws ClassCastException if the elements are not mutually comparable

            throws ModelInterpolationException {
        if (!src.contains("${")) {
            return src;
        }

        Logger logger = getLogger();

        String result = src;
        synchronized (this) {
            for (ValueSource vs : valueSources) {
                interpolator.addValueSource(vs);
            }

            for (InterpolationPostProcessor postProcessor : postProcessors) {

        ProjectArtifactsCache.CacheRecord recordArtifacts;
        recordArtifacts = projectArtifactsCache.get(cacheKey);
        if (recordArtifacts == null) {
            synchronized (cacheKey) {
                recordArtifacts = projectArtifactsCache.get(cacheKey);
                if (recordArtifacts == null) {
                    try {

        this.received = true;
        synchronized (this) {
            notifyAll();
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#exception(java.lang.Exception)
     */
    @Override
    public void exception(final Exception e) {
        this.exception = e;
        synchronized (this) {
            notifyAll();
        }
    }

 * since an iteration across all row keys occurs.
 *
 * <p>Note that this implementation is not synchronized. If multiple threads access this table
 * concurrently and one of the threads modifies the table, it must be synchronized externally.
 *
 * @author Jared Levy
 */
@GwtCompatible
class StandardTable<R, C, V> extends AbstractTable<R, C, V> implements Serializable {

  private class RecordingPushObserver :
    PushObserver,
    Lockable {
    val events = mutableListOf<Any>()

    @Synchronized fun takeEvent(): Any {
      while (events.isEmpty()) {
        wait()
      }
      return events.removeAt(0)
    }

    @Synchronized override fun onRequest(
      streamId: Int,
      requestHeaders: List<Header>,
    ): Boolean {