* All access is synchronized via indexUpdateCallback lock.
     */
    protected List<String> deleteUrlList = new ArrayList<>();

    /** Maximum size of the delete URL cache before batch deletion is triggered. */
    protected int maxDeleteDocumentCacheSize;

    /** Maximum number of redirects to follow when processing URLs. */
    protected int maxRedirectCount;

     *   null _failure message_)
     *
     * That combination upsets NullPointerTester, which wants any call that passes null for a
     * non-@Nullable parameter to trigger a NullPointerException.
     *
     * (We still define this empty method to keep PackageSanityTests from generating its own
     * automated nullness tests, which would fail.)
     */
  }

   * map built by MapMaker) no longer has a strong reference to this object, the garbage collector
   * will reclaim it and enqueue the phantom reference. The enqueued reference will trigger the
   * Finalizer to stop.
   *
   * If this library is loaded in the system class loader, FinalizableReferenceQueue can load
   * Finalizer directly with no problems.
   *

                svc = this.service;
                if (svc == null) {
                    // there still is some kind of race condition, where?
                    // this used to trigger "invalid operation..."
                    throw new SmbException("Service is null in state " + this.connectionState.get());
                }
                checkRequest(transport, req, svc);

            }

    awaitTimedWaiting(waiter);
    service.shutdown();
    Uninterruptibles.joinUninterruptibly(waiter, 10, SECONDS);
    if (waiter.isAlive()) {
      waiter.interrupt();
      fail("awaitTermination failed to trigger after shutdown()");
    }
  }

  /** Wait for the given thread to reach the {@link State#TIMED_WAITING} thread state. */
  @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.

   * On the other hand, past underutilization could mean that "the server responsible for handling
   * the request has become less ready for future requests", i.e. its caches become stale, and
   * requests become more likely to trigger expensive operations (a more extreme case of this
   * example is when a server has just booted, and it is mostly busy with getting itself up to
   * speed).
   *

import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.NullMarked;

/**
 * Testing utilities relating to garbage collection finalization.
 *
 * <p>Use this class to test code triggered by finalization, that is, one of the following
 * actions taken by the java garbage collection system:
 *
 * <ul>
 *   <li>invoking the {@code finalize} methods of unreachable objects

                    .setDeprecatedHandler(this::addDeprecatedOption)
                    .get();
            CommandLine commandLine = parser.parse(options, cleanArgs);
            // to trigger deprecation handler, so we can report deprecation BEFORE we actually use options
            options.getOptions().forEach(commandLine::hasOption);
            return commandLine;
        }

 *
 * Many methods in this API are **synchronous:** the call is completed before the method returns.
 * This is typical for Java but atypical for HTTP/2. This is motivated by exception transparency:
 * an [IOException] that was triggered by a certain caller can be caught and handled by that caller.
 */
@Suppress("NAME_SHADOWING")
class Http2Connection internal constructor(
  builder: Builder,
) : Closeable,
  Lockable {

        networkExplorer = new NetworkExplorer() {
            @Override
            public void init(ServletConfig config) throws ServletException {
                // Read the parameters to trigger verification
                config.getInitParameter("jcifs.smb.client.domain");
                config.getInitParameter("jcifs.http.enableBasic");

                // Set required fields
                try {