// Create dummy data that we'll split into 3 parts
	dummyData := []byte("The quick brown fox jumps over the lazy dog. " +
		"Pack my box with five dozen brown eggs. " +
		"Have another go it will all make sense in the end!")

	// Split data into 3 parts
	partSize := len(dummyData) / 3
	part1Data := dummyData[0:partSize]
	part2Data := dummyData[partSize : 2*partSize]
	part3Data := dummyData[2*partSize:]

    WritableByteChannel outChannel = Channels.newChannel(out);

    File testFile = createTempFile();
    byte[] dummyData = newPreFilledByteArray(chunkSize);
    try (FileOutputStream fos = new FileOutputStream(testFile)) {
      for (int i = 0; i < 500; i++) {
        fos.write(dummyData);
      }
    }
    try (ReadableByteChannel inChannel = new RandomAccessFile(testFile, "r").getChannel()) {

    WritableByteChannel outChannel = Channels.newChannel(out);

    File testFile = createTempFile();
    byte[] dummyData = newPreFilledByteArray(chunkSize);
    try (FileOutputStream fos = new FileOutputStream(testFile)) {
      for (int i = 0; i < 500; i++) {
        fos.write(dummyData);
      }
    }
    try (ReadableByteChannel inChannel = new RandomAccessFile(testFile, "r").getChannel()) {