int bufferCount = pacStream.readInt();
            int version = pacStream.readInt();

            if (version != PacConstants.PAC_VERSION) {
                throw new PACDecodingException("Unrecognized PAC version " + version);
            }

            for (int bufferIndex = 0; bufferIndex < bufferCount; bufferIndex++) {
                int bufferType = pacStream.readInt();

                String token = null;
                String segmentation = null;
                String reading = null;
                String pos = null;
                switch (values.length) {
                case 4:
                    pos = values[3];
                case 3:
                    reading = values[2];
                case 2:
                    segmentation = values[1];
                case 1:

	stats, err := readStat(statsFile)
	if err != nil {
		return IOStats{}, err
	}
	if len(stats) < 11 {
		return IOStats{}, fmt.Errorf("found invalid format while reading %v", statsFile)
	}
	// refer https://www.kernel.org/doc/Documentation/block/stat.txt
	iostats = IOStats{
		ReadIOs:      stats[0],
		ReadMerges:   stats[1],
		ReadSectors:  stats[2],
		ReadTicks:    stats[3],

      }
    }

    @Override
    public int readInt() {
      try {
        return input.readInt();
      } catch (IOException e) {
        throw new IllegalStateException(e);
      }
    }

    @Override
    public long readLong() {
      try {
        return input.readLong();
      } catch (IOException e) {
        throw new IllegalStateException(e);
      }

import java.time.Duration;
import java.util.concurrent.TimeUnit;

/**
 * An object that accurately measures <i>elapsed time</i>: the measured duration between two
 * successive readings of "now" in the same process.
 *
 * <p>In contrast, <i>wall time</i> is a reading of "now" as given by a method like
 * {@link System#currentTimeMillis()}, best represented as an {@link java.time.Instant}. Such values

	}

	line, isPrefix, err := l.ReadLine()
	if err != io.EOF {
		t.Errorf("expected EOF from ReadLine, got '%s' %t %s", line, isPrefix, err)
	}
}

func TestReadLineNonNilLineOrError(t *testing.T) {
	r := NewReader(strings.NewReader("line 1\n"))
	for i := 0; i < 2; i++ {
		l, _, err := r.ReadLine()
		if l != nil && err != nil {

        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0x123456789ABCDEF0L, pdis.readLong());
    }

    @Test
    public void testReadUnsignedByte() throws IOException {
        byte[] data = new byte[] { (byte) 0xFF };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(255, pdis.readUnsignedByte());
    }

    @Test

// of the line. The returned buffer is only valid until the next call to
// ReadLine. ReadLine either returns a non-nil line or it returns an error,
// never both.
//
// The text returned from ReadLine does not include the line end ("\r\n" or "\n").
// No indication or error is given if the input ends without a final line end.
// Calling [Reader.UnreadByte] after ReadLine will always unread the last byte read

     * @param segmentation The segmentation.
     * @param reading The reading.
     * @param pos The part of speech.
     */
    public KuromojiItem(final long id, final String token, final String segmentation, final String reading, final String pos) {
        this.id = id;
        this.token = token;
        this.segmentation = segmentation;
        this.reading = reading;
        this.pos = pos;

        if (id == 0) {

import java.time.Duration;
import java.util.concurrent.TimeUnit;

/**
 * An object that accurately measures <i>elapsed time</i>: the measured duration between two
 * successive readings of "now" in the same process.
 *
 * <p>In contrast, <i>wall time</i> is a reading of "now" as given by a method like
 * {@link System#currentTimeMillis()}, best represented as an {@link java.time.Instant}. Such values