// Then
        assertNotSame(instance1, instance2);
        assertEquals(instance1.getCommand(), instance2.getCommand());
        assertNotEquals(instance1.toString(), instance2.toString()); // Different object references in toString
    }

    /**
     * Test thread safety of read/write operations
     */
    @Test
    @DisplayName("Test thread safety of operations")

        partitionedFiles.put(currentVersion, mutableAllFilesInCheckout);

        return partitionedFiles;
    }

    /**
     * Ensure the upstream git remote is up-to-date. The upstream is whatever git remote references `elastic/elasticsearch`.
     * @param gitWrapper used to call `git`
     */
    private static void findAndUpdateUpstreamRemote(GitWrapper gitWrapper) {
        LOGGER.info("Finding upstream git remote");

   * null.
   *
   * <p><b>Discouraged:</b> Prefer using either {@code x -> x == null} or {@code Objects::isNull},
   * but note that lambdas and method references do not have human-readable {@link #toString()}
   * representations and are not serializable.
   */
  public static <T extends @Nullable Object> Predicate<T> isNull() {
    return ObjectPredicate.IS_NULL.withNarrowedType();

        ReferenceQueue<V> queue, @Nullable V value, ReferenceEntry<K, V> entry);

    /**
     * Notify pending loads that a new value was set. This is only relevant to loading value
     * references.
     */
    void notifyNewValue(@Nullable V newValue);

    /**
     * Returns true if a new value is currently loading, regardless of whether there is an existing

   * Returns an array containing all of the elements in the specified collection. This method
   * returns the elements in the order they are returned by the collection's iterator. The returned
   * array is "safe" in that no references to it are maintained by the collection. The caller is
   * thus free to modify the returned array.
   *
   * <p>This method assumes that the collection size doesn't change while the method is running.
   *

   - Document API changes

3. **Community Engagement**:
   - Announce implementation plan
   - Solicit feedback from users
   - Identify beta testers for early access

## References

- [MS-SMB2]: Server Message Block (SMB) Protocol Version 2 and 3
- [MS-SWN]: Service Witness Protocol
- [MS-SMBD]: SMB2 Remote Direct Memory Access (RDMA) Transport Protocol
- Windows Protocol Test Suites

    return Platform.emptyToNull(string);
  }

  /**
   * Returns {@code true} if the given string is null or is the empty string.
   *
   * <p>Consider normalizing your string references with {@link #nullToEmpty}. If you do, you can
   * use {@link String#isEmpty()} instead of this method, and you won't need special null-safe forms

        ReferenceQueue<V> queue, @Nullable V value, ReferenceEntry<K, V> entry);

    /**
     * Notify pending loads that a new value was set. This is only relevant to loading value
     * references.
     */
    void notifyNewValue(@Nullable V newValue);

    /**
     * Returns true if a new value is currently loading, regardless of whether there is an existing

		delete(sys.metadataMap, bucket)
		globalBucketMonitor.DeleteBucket(bucket)
	}
}

// Set - sets a new metadata in-memory.
// Only a shallow copy is saved and fields with references
// cannot be modified without causing a race condition,
// so they should be replaced atomically and not appended to, etc.
// Data is not persisted to disk.

   * instance, since {@code PermittedExceptions} is thrown only when a method call is invalid.
   *
   * <p>This class is accessible but not supported in GWT as it references {@link
   * PermittedMetaException}.
   */
  protected final class MultiExceptionListIterator implements ListIterator<E> {
    // TODO: track seen elements when order isn't guaranteed