*
 */
public interface Source {

    /**
     * Gets a byte stream to the source contents. Closing the returned stream is the responsibility of the caller.
     *
     * @return A byte stream to the source contents, never {@code null}.
     * @throws IOException in case of IO issue
     */
    InputStream getInputStream() throws IOException;

    /**

      public Spliterator<Entry<K, V>> spliterator() {
        return Spliterators.spliterator(this, Spliterator.ORDERED | Spliterator.DISTINCT);
      }
    }
    return new EntrySetImpl();
  }

  @Override
  Set<K> createKeySet() {
    @WeakOuter
    class KeySetImpl extends KeySetView {
      @Override
      public @Nullable Object[] toArray() {
        return ObjectArrays.toArrayImpl(this);
      }

		return nil, err
	}
	if h.ID != diskID && h.ID != "" {
		return nil, fmt.Errorf("loadHealingTracker: drive id mismatch expected %s, got %s", h.ID, diskID)
	}
	h.disk = disk
	h.ID = diskID
	h.mu = &sync.RWMutex{}
	return &h, nil
}

// newHealingTracker will create a new healing tracker for the disk.
func newHealingTracker() *healingTracker {
	return &healingTracker{
		mu: &sync.RWMutex{},
	}
}

    @Override
    public Subject getSubject () {
        return this.subject;
    }


    /**
     * Get the user name which authenticate against to. If the default user
     * is used, Null will be returned.
     *
     * @return user name
     */
    public String getUser () {
        return this.user;
    }


    /**
     * Set the service name which is used to setup <code>GSSContext</code>.

     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     * @return The interpolated model, never {@code null}.
     * @deprecated Use {@link #interpolateModel(Model, Path, ModelBuildingRequest, ModelProblemCollector)} instead.
     */
    @Deprecated

    return new StringSourceFactory();
  }

  public static ByteSourceFactory byteArraySourceFactory() {
    return new ByteArraySourceFactory();
  }

  public static ByteSourceFactory emptyByteSourceFactory() {
    return new EmptyByteSourceFactory();
  }

  public static CharSourceFactory emptyCharSourceFactory() {
    return new EmptyCharSourceFactory();
  }

        if( read( tmp, 0, 1 ) == -1 ) {
            return -1;
        }
        return tmp[0] & 0xFF;
    }

/**
 * Reads up to b.length bytes of data from this input stream into an array of bytes.
 *
 * @throws IOException if a network error occurs
 */

    public int read( byte[] b ) throws IOException {
        return read( b, 0, b.length );
    }

/**

   * class to begin with but rather something returned from a static factory method whose declared
   * return type is plain FilenameFilter. If we made such a change, then the annotation we choose
   * here would have no significance to end users, who would be forced to conform to the signature
   * used in FilenameFilter.)
   */
  @Override
  public boolean accept(File dir, String fileName) {
    return pattern.matcher(fileName).matches();
  }

        checkClosed();
        if (pathProcessor == null) {
            pathProcessor = createPathProcessor();
        }
        return pathProcessor;
    }

    protected PathProcessor createPathProcessor() {
        return new DefaultPathProcessor();
    }

    private ChecksumProcessor checksumProcessor;

    public final ChecksumProcessor getChecksumProcessor() {

    @Override
    public int compareTo(Composite<T> that) {
      return Integer.compare(rank, that.rank);
    }

    static <T extends @Nullable Object> Function<Composite<T>, T> getValueFunction() {
      return new Function<Composite<T>, T>() {
        @Override
        public T apply(Composite<T> from) {
          return from.value;
        }
      };
    }
  }

  @J2ktIncompatible