val delegate = delegate
    if (delegate != null) {
      this.delegate = null
      delegate.onClosing(webSocket, code, reason)
    } else {
      events.add(Closing(code, reason))
    }
  }

  override fun onClosed(
    webSocket: WebSocket,
    code: Int,
    reason: String,
  ) {
    Platform.get().log("[WS $name] onClosed $code", Platform.INFO, null)

 *
 *  * **Open:** the web socket has been accepted by the remote peer and is fully operational.
 *    Messages in either direction are enqueued for immediate transmission.
 *
 *  * **Closing:** one of the peers on the web socket has initiated a graceful shutdown. The web
 *    socket will continue to transmit already-enqueued messages but will refuse to enqueue new
 *    ones.
 *

 * CharSource CharSource}, {@link ByteSink ByteSink} and {@link CharSink CharSink}. They are
 * factories for I/O streams that provide many convenience methods that handle both opening and
 * closing streams for you.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library. For more information on Sources and Sinks as well as other features of this package, see

 *   <li><b>Convenience methods:</b> These are implementations of common operations that are
 *       typically implemented by opening a stream using one of the methods in the first category,
 *       doing something and finally closing the stream or channel that was opened.
 * </ul>
 *
 * @since 14.0
 * @author Colin Decker
 */
@J2ktIncompatible
@GwtIncompatible
public abstract class ByteSink {

 *   <li><b>Convenience methods:</b> These are implementations of common operations that are
 *       typically implemented by opening a stream using one of the methods in the first category,
 *       doing something and finally closing the stream or channel that was opened.
 * </ul>
 *
 * @since 14.0
 * @author Colin Decker
 */
@J2ktIncompatible
@GwtIncompatible
public abstract class ByteSink {

import java.io.InputStream;
import java.io.Reader;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Closeables}.
 *
 * <p>Checks proper closing behavior, and ensures that IOExceptions on Closeable.close() are not
 * propagated out from the {@link Closeables#close} method if {@code swallowException} is true.
 *
 * @author Michael Lancaster
 */
@NullUnmarked

        direction.directFrameworkDebug(fessConfig.isFrameworkDebug()); // basically false

        // you can add your own process when your application is booting or closing
        direction.directCurtainBefore(createCurtainBeforeHook());
        direction.directCurtainFinally(createCurtainFinallyHook()); // when destroy

        direction.directSecurity(createSecurityResourceProvider());

 *   <li><b>Convenience methods:</b> These are implementations of common operations that are
 *       typically implemented by opening a writer using one of the methods in the first category,
 *       doing something and finally closing the writer that was opened.
 * </ul>
 *
 * <p>Any {@link ByteSink} may be viewed as a {@code CharSink} with a specific {@linkplain Charset

 *
 * Note that [nextPart] will skip any unprocessed data from the preceding part. If the preceding
 * part is particularly large or if the underlying source is particularly slow, the [nextPart] call
 * may be slow!
 *
 * Closing a part **does not** close this multipart reader; callers must explicitly close this with
 * [close].
 *
 * [rfc_2046]: http://www.ietf.org/rfc/rfc2046.txt
 */
class MultipartReader
  @Throws(IOException::class)

The connection lock is never held while doing I/O (even closing a socket) to prevent contention.