docs: static public int getBytes(WsByteBuffer wsbb, byte[] dst, int offset) {
          try {
              // Use the buffers bulk get method
              wsbb.get(dst, offset, dst.length - offset);
              return dst.length;
          } catch (BufferUnderflowException bue) {
              // no FFDC required
              int numOfBytesAvail = wsbb.remaining();
              wsbb.get(dst, offset, numOfBytesAvail);
              return (offset + numOfBytesAvail);
          }
      }