public DoubleViewBufferImpl (ByteBuffer bb, int offset, int capacity, int limit, int position, int mark, boolean readOnly, ByteOrder endian)
DoubleViewBufferImpl (ByteBuffer bb, int capacity)
  public DoubleViewBufferImpl (ByteBuffer bb, int offset, int capacity,                               int limit, int position, int mark,                               boolean readOnly, ByteOrder endian)  {    super (limit >> 3, limit >> 3, position >> 3, mark >> 3);    this.bb = bb;    this.offset = offset;    this.readOnly = readOnly;    this.endian = endian;  }