* The passed {@code ByteBuffer} is guaranteed to be non-empty.
   *
   * <p>This implementation simply pads with zeros and delegates to {@link #process(ByteBuffer)}.
   */
  protected void processRemaining(ByteBuffer bb) {
    Java8Compatibility.position(bb, bb.limit()); // move at the end
    Java8Compatibility.limit(bb, chunkSize + 7); // get ready to pad with longs
    while (bb.position() < chunkSize) {

      }
    }

    @Override
    protected void processRemaining(ByteBuffer bb) {
      assertFalse(remainingCalled);
      remainingCalled = true;
      assertEquals(ByteOrder.LITTLE_ENDIAN, bb.order());
      assertThat(bb.remaining()).isGreaterThan(0);
      assertThat(bb.remaining()).isLessThan(bufferSize);
      int before = processCalled;
      super.processRemaining(bb);
      int after = processCalled;

        @Override
        protected void process(ByteBuffer bb) {
          while (bb.hasRemaining()) {
            out.write(bb.get());
          }
        }

        @Override
        protected void processRemaining(ByteBuffer bb) {
          while (bb.hasRemaining()) {
            out.write(bb.get());
          }
        }
      };
    }
  }

      this.v3 ^= k1;
    }

    @Override
    protected void process(ByteBuffer buffer) {
      b += CHUNK_SIZE;
      processM(buffer.getLong());
    }

    @Override
    protected void processRemaining(ByteBuffer buffer) {
      b += buffer.remaining();
      for (int i = 0; buffer.hasRemaining(); i += 8) {
        finalM ^= (buffer.get() & 0xFFL) << i;
      }
    }

    @Override