}

    @Override
    public synchronized void insert(final SynonymItem item) {
        try (SynonymUpdater updater = new SynonymUpdater(item)) {
            reload(updater);
        }
    }

    @Override
    public synchronized void update(final SynonymItem item) {
        try (SynonymUpdater updater = new SynonymUpdater(item)) {

     *
     * @param host the hostname to resolve
     * @return the resolved NbtAddress or null if not found
     */

    public synchronized static NbtAddress getByName(final String host) {
        return getByName(new Name(host, 0x20, null));
    }

    synchronized static NbtAddress getByName(final Name name) {
        NbtAddress result = null;

        try {
            if (FILENAME != null) {

            return matches(tree.share, tree.service);
        }
        return false;
    }

    void send(final ServerMessageBlock request, final ServerMessageBlock response) throws SmbException {
        synchronized (session.transport()) {
            if (response != null) {
                response.received = false;
            }
            treeConnect(request, response);

      synchronized (future) {
        if (future.waitersField == expect) {
          future.waitersField = update;
          return true;
        }
        return false;
      }
    }

    @Override
    boolean casListeners(
        AbstractFutureState<?> future, @Nullable Listener expect, Listener update) {
      synchronized (future) {

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not
    // yet started execution.
    synchronized (this) {
      if (!executed) {
        runnables = new RunnableExecutorPair(runnable, executor, runnables);
        return;
      }
    }

import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.InvocationKind
import kotlin.contracts.contract
import okhttp3.internal.assertionsEnabled

/**
 * Marker interface for objects that use the JVM's `synchronized` mechanism and the related
 * `wait()` and `notify()` functions.
 *
 * The Lockable interface is particularly handy because it ensures we lock the right `this` when
 * there are multiple `this` objects in scope.
 */

     *
     * @return the tree handle implementation
     * @throws CIFSException if a connection error occurs
     */
    protected synchronized SmbTreeHandleImpl ensureTreeConnected() throws CIFSException {
        return this.handle.ensureTreeConnected();
    }

    @Override
    protected synchronized SmbFileHandleImpl ensureOpen() throws CIFSException {
        return this.handle.ensureOpen();
    }

    /**

            this.cache = new ArrayList<>(maxBuffers);
        }

        @Override
        public synchronized byte[] getBuffer() {
            if (!cache.isEmpty()) {
                return cache.remove(0);
            }
            return new byte[bufferSize];
        }

        @Override
        public synchronized void releaseBuffer(byte[] buf) {
            if (buf != null && cache.size() < maxBuffers) {

    }

    synchronized SmbTransport transport() {
        if (transport == null) {
            transport = SmbTransport.getSmbTransport(address, port, localAddr, localPort, null);
        }
        return transport;
    }

    void send(final ServerMessageBlock request, final ServerMessageBlock response) throws SmbException {
        synchronized (transport()) {
            if (response != null) {

  }

  @Override
  public final void addTearDown(TearDown tearDown) {
    synchronized (lock) {
      stack.addFirst(checkNotNull(tearDown));
    }
  }

  /** Causes teardown to execute. */
  public final void runTearDown() {
    List<Throwable> exceptions = new ArrayList<>();
    List<TearDown> stackCopy;
    synchronized (lock) {
      stackCopy = new ArrayList<>(stack);
      stack.clear();
    }