implements Serializable {
  // TODO(lowasser): consider overhauling this back to Map<E, Integer>
  private transient Map<E, Count> backingMap;

  /*
   * Cache the size for efficiency. Using a long lets us avoid the need for
   * overflow checking and ensures that size() will function correctly even if
   * the multiset had once been larger than Integer.MAX_VALUE.
   */
  private transient long size;

 *
 * <p>Users of these utilities must be <i>extremely careful</i> not to mix up signed and unsigned
 * {@code long} values. When possible, it is recommended that the {@link UnsignedLong} wrapper class
 * be used, at a small efficiency penalty, to enforce the distinction in the type system.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/PrimitivesExplained#unsigned-support">unsigned
 * primitive utilities</a>.

/**
 * Base class for SMB1 AndX (chained) command messages.
 * This class extends ServerMessageBlock to support SMB1 command chaining, where multiple
 * related commands can be batched together in a single message for improved efficiency.
 */
public abstract class AndXServerMessageBlock extends ServerMessageBlock {

    private static final Logger log = LoggerFactory.getLogger(AndXServerMessageBlock.class);

     * expired because under normal circumstances SID information never changes.
     *
     * @param authorityServerName
     *            The hostname of the server that should be queried. For maximum efficiency this should be the hostname
     *            of a domain controller however a member server will work as well and a domain controller may not

            // Optimization: Use larger block sizes for better performance
            final int optimizedBlockSize = Math.min(blockSize * 2, 64 * 1024); // Cap at 64KB for memory efficiency
            final int effectiveBlockSize = Math.max(blockSize, optimizedBlockSize);

            SmbComReadAndXResponse response = null;
            if (!th.isSMB2()) {

        urlFilter.addInclude(".+"); // Match at least one character
        assertTrue(urlFilter.match("https://example.com/"));
        assertFalse(urlFilter.match(""));
    }

    /**
     * Test memory efficiency with large number of patterns
     */
    public void test_largeNumberOfPatterns() {
        String sessionId = "test-session-028";
        urlFilter.init(sessionId);

        // Add many patterns

 *
 * <p>Users of these utilities must be <i>extremely careful</i> not to mix up signed and unsigned
 * {@code int} values. When possible, it is recommended that the {@link UnsignedInteger} wrapper
 * class be used, at a small efficiency penalty, to enforce the distinction in the type system.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/PrimitivesExplained#unsigned-support">unsigned
 * primitive utilities</a>.

            // File.renameTo operation doesn't really work across file systems.
            // So we will attempt to do a File.renameTo for efficiency and atomicity, if this fails
            // then we will use a brute force copy and delete the temporary file.
            if (!temp.renameTo(destination)) {
                try {
                    Files.copy(

    List<Future<T>> futures = Lists.newArrayListWithCapacity(ntasks);
    BlockingQueue<Future<T>> futureQueue = Queues.newLinkedBlockingQueue();
    long timeoutNanos = unit.toNanos(timeout);

    // For efficiency, especially in executors with limited
    // parallelism, check to see if previously submitted tasks are
    // done before submitting more of them. This interleaving

            processNotificationBatch(batch);
        }
    }
    
    private void processNotificationBatch(List<WitnessNotification> notifications) {
        // Process multiple notifications together for efficiency
        for (WitnessNotification notification : notifications) {
            // Handle notification
        }
    }
}
```

## 10. Security Considerations