Method contentEquals

guava/src/com/google/common/io/ByteSource.java:349–361

Checks that the contents of this byte source are equal to the contents of the given byte source. @throws IOException if an I/O error occurs while reading from this source or {@code other}

(ByteSource other)

   * @throws IOException if an I/O error occurs while reading from this source or {@code other}
   */
  public boolean contentEquals(ByteSource other) throws IOException {
    checkNotNull(other);

    Closer closer = Closer.create();
    try {
      return ByteStreams.contentsEqual(
          closer.register(openStream()), closer.register(other.openStream()));
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

  /**
   * Concatenates multiple {@link ByteSource} instances into a single source. Streams returned from