w.setDaemon( true );
        w.start();

        /* Downgrade one transport to the lower of the negotiated buffer sizes
         * so we can just send whatever is received.
         */

        SmbTransport t1 = tree.session.transport;
        SmbTransport t2 = dest.tree.session.transport;

        if( t1.snd_buf_size < t2.snd_buf_size ) {
            t2.snd_buf_size = t1.snd_buf_size;

      SettableFuture<Object> root = SettableFuture.create();
      ListenableFuture<Object> unused = transform(root, identity(), directExecutor());
      root.set("foo");
    }

    SettableFuture<Object> root = SettableFuture.create();
    ListenableFuture<Object> output = root;
    for (int i = 0; i < 10000; i++) {
      output = transform(output, identity(), directExecutor());
    }
    try {
      root.set("foo");

      SettableFuture<Object> root = SettableFuture.create();
      ListenableFuture<Object> unused = transform(root, identity(), directExecutor());
      root.set("foo");
    }

    SettableFuture<Object> root = SettableFuture.create();
    ListenableFuture<Object> output = root;
    for (int i = 0; i < 10000; i++) {
      output = transform(output, identity(), directExecutor());
    }
    try {
      root.set("foo");

import static com.google.common.cache.CacheBuilder.NULL_TICKER;
import static com.google.common.cache.CacheBuilder.UNSET_INT;
import static com.google.common.util.concurrent.Futures.transform;
import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
import static com.google.common.util.concurrent.Uninterruptibles.getUninterruptibly;
import static java.util.Collections.unmodifiableSet;

 * <p>A step can be the input to at most one derived step. Once you transform its value, catch its
 * exception, or combine it with others, you cannot do anything else with it, including declare it
 * to be the last step of the pipeline.
 *
 * <h4>Transforming</h4>
 *
 * To derive the next step by asynchronously applying a function to an input step's value, call

     *       Objects.equal}{@code (k1, k2) &&} {@link Objects#equal}{@code (v1, v2)} implies that
     *       {@code Objects.equal(transformer.transform(k1, v1), transformer.transform(k2, v2))}.
     * </ul>
     *
     * @throws NullPointerException if the key or value is null and this transformer does not accept
     *     null arguments
     */
    @ParametricNullness

import static com.google.common.cache.CacheBuilder.NULL_TICKER;
import static com.google.common.cache.CacheBuilder.UNSET_INT;
import static com.google.common.util.concurrent.Futures.transform;
import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
import static com.google.common.util.concurrent.Uninterruptibles.getUninterruptibly;
import static java.util.Collections.unmodifiableSet;