* {@link UnsupportedOperationException} when they are not implemented. Most implementations should
 * support either all add operations or none of them, all removal operations or none of them, and if
 * and only if all of these are supported, the {@code setCount} methods as well.
 *
 * <p>A multiset uses {@link Object#equals} to determine whether two instances should be considered

	case "Rmdir":
		bucket, prefix := path2BucketObject(r.Filepath)
		if bucket == "" {
			return errors.New("deleting all buckets not allowed")
		}

		cctx, cancel := context.WithCancel(context.Background())
		defer cancel()

		if prefix == "" {
			// if all objects are not deleted yet this call may fail.
			return clnt.RemoveBucket(cctx, bucket)
		}

		objectsCh := make(chan minio.ObjectInfo)

     */
    @Nonnull
    Optional<Source> locate(@Nonnull Path dir);

    /**
     * Parse the model obtained previously by a previous call to {@link #locate(Path)}.
     *
     * @param source the source to parse, never {@code null}
     * @param options possible parsing options, may be {@code null}
     * @return the parsed {@link Model}, never {@code null}

	columns := make([]string, 0, len(mapValues))

	// when the length of mapValues is zero,return directly here
	// no need to call stmt.SelectAndOmitColumns method
	if len(mapValues) == 0 {
		stmt.AddError(gorm.ErrEmptySlice)
		return
	}

	var (
		result                    = make(map[string][]interface{}, len(mapValues))

 *
 * @author David Beaumont
 */
@GwtCompatible
final class UrlEscaperTesting {
  /**
   * Helper to assert common expected behaviour of uri escapers. You should call
   * assertBasicUrlEscaper() unless the escaper explicitly does not escape '%'.
   */
  static void assertBasicUrlEscaperExceptPercent(UnicodeEscaper e) {
    // URL escapers should throw null pointer exceptions for null input

 *
 * @author David Beaumont
 */
@GwtCompatible
final class UrlEscaperTesting {
  /**
   * Helper to assert common expected behaviour of uri escapers. You should call
   * assertBasicUrlEscaper() unless the escaper explicitly does not escape '%'.
   */
  static void assertBasicUrlEscaperExceptPercent(UnicodeEscaper e) {
    // URL escapers should throw null pointer exceptions for null input

// The permission bits perm (before umask) are used for all
// directories that MkdirAll creates.
// If path is already a directory, MkdirAll does nothing
// and returns nil.
func osMkdirAll(dirPath string, perm os.FileMode, baseDir string) error {
	if baseDir != "" {
		if strings.HasPrefix(baseDir, dirPath) {
			return nil
		}
	}

	// Slow path: make sure parent exists and then call Mkdir for path.
	i := len(dirPath)

                                    TracingTensorHandle**) = 0;

  // Finalize this context and make a function out of it. The context is in a
  // invalid state after this call and must be destroyed.
  virtual absl::Status Finalize(OutputList* outputs, AbstractFunction**) = 0;

  // For LLVM style RTTI.
  static bool classof(const AbstractContext* ptr) {

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public abstract class AbstractListIndexOfTester<E> extends AbstractListTester<E> {
  /** Override to call {@code indexOf()} or {@code lastIndexOf()}. */
  protected abstract int find(@Nullable Object o);

  /** Override to return "indexOf" or "lastIndexOf()" for use in failure messages. */
  protected abstract String getMethodName();

    assertThat(e.getCause()).isEqualTo(exception);
  }

  public static <T> Callable<T> callableThrowing(final Exception exception) {
    return new Callable<T>() {
      @Override
      public T call() throws Exception {
        throw exception;
      }
    };
  }

  private static Runnable runnableThrowing(final RuntimeException e) {
    return new Runnable() {
      @Override