* for the field accesses in MapIteratorCache. This test *has* found other TSAN errors,
     * including in MapRetrievalCache, so I'm not sure why this one is different. I did at least
     * confirm that my change to MapIteratorCache fixes the TSAN error in the (larger) test it was
     * originally reported in.
     */
    for (Future<?> future : futures.build()) {
      future.get();
    }
    executor.shutdown();
  }

   *   <li>use {@link Appendable#append(CharSequence)} in {@link #copyTo(Appendable)} and {@link
   *       #copyTo(CharSink)}. We know this is correct since strings are immutable and so the length
   *       can't change, and it is faster because many writers and appendables are optimized for
   *       appending string instances.
   * </ul>
   */
  private static class StringCharSource extends CharSequenceCharSource {

   *   <li>use {@link Appendable#append(CharSequence)} in {@link #copyTo(Appendable)} and {@link
   *       #copyTo(CharSink)}. We know this is correct since strings are immutable and so the length
   *       can't change, and it is faster because many writers and appendables are optimized for
   *       appending string instances.
   * </ul>
   */
  private static class StringCharSource extends CharSequenceCharSource {

    /** SMB2 echo/keepalive command */
    protected static final short SMB2_ECHO = 0x000D;
    /** SMB2 query directory command */
    protected static final short SMB2_QUERY_DIRECTORY = 0x000E;
    /** SMB2 change notify command */
    protected static final short SMB2_CHANGE_NOTIFY = 0x000F;
    /** SMB2 query info command */
    protected static final short SMB2_QUERY_INFO = 0x0010;
    /** SMB2 set info command */

reflected back in the source object when `ReplicaModifications` status in the `SourceSelectionCriteria` is `Enabled`. In MinIO, this is enabled by default. If a metadata update is performed on the "REPLICA" object, its `X-Amz-Replication-Status` will change from `PENDING` to `COMPLETE` or `FAILED`, and the source object version will show `X-Amz-Replication-Status` of `REPLICA` once the replication operation is complete.

The replication configuration in use on a bucket can be viewed using the...

    threadPool.awaitTermination(300, SECONDS);

    // Since we're not doing any more cache operations, and the cache only expires/evicts when doing
    // other operations, the cache and the removal queue won't change from this point on.

    // Verify that each received removal notification was valid
    for (RemovalNotification<String, String> notification : removalListener) {

    threadPool.awaitTermination(300, SECONDS);

    // Since we're not doing any more cache operations, and the cache only expires/evicts when doing
    // other operations, the cache and the removal queue won't change from this point on.

    // Verify that each received removal notification was valid
    for (RemovalNotification<String, String> notification : removalListener) {

 * keys and values are stored.
 *
 * <h3>Other Notes</h3>
 *
 * <p>As with {@code Map}, the behavior of a {@code Multimap} is not specified if key objects
 * already present in the multimap change in a manner that affects {@code equals} comparisons. Use
 * caution if mutable objects are used as keys in a {@code Multimap}.
 *
 * <p>All methods that modify the multimap are optional. The view collections returned by the

            // Last Write Time (8 bytes)
            long lastWriteTime = creationTime + 2000000L;
            SMBUtil.writeInt8(lastWriteTime, buffer, bufferIndex + 24);
            // Change Time (8 bytes)
            long changeTime = creationTime + 3000000L;
            SMBUtil.writeInt8(changeTime, buffer, bufferIndex + 32);
            // Allocation Size (8 bytes)

import java.util.function.Function;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import org.jspecify.annotations.Nullable;

/**
 * A {@link Map} whose contents will never change, with many other important properties detailed at
 * {@link ImmutableCollection}.
 *
 * <p>See the Guava User Guide article on <a href=