func readAndMap(files []string, partNum, blockNum int) (*mappedData, error) {
	var m mappedData
	sort.Strings(files)
	m.parityData = make(map[int]map[int][]byte)
	for _, file := range files {
		meta, err := os.ReadFile(file + ".json")
		if err != nil {
			return nil, err
		}
		type erasureInfo struct {
			V2Obj *struct {
				EcDist    []int
				EcIndex   int
				EcM       int
				EcN       int

    assertThrows(NullPointerException.class, () -> Files.newReader(null, UTF_8));

    BufferedReader r = Files.newReader(asciiFile, US_ASCII);
    try {
      assertEquals(ASCII, r.readLine());
    } finally {
      r.close();
    }
  }

  public void testNewWriter() throws IOException {
    File temp = createTempFile();

func loadMetacacheSample(t testing.TB) *metacacheReader {
	b, err := os.ReadFile("testdata/metacache.s2")
	if err != nil {
		t.Fatal(err)
	}
	return newMetacacheReader(bytes.NewReader(b))
}

func loadMetacacheSampleEntries(t testing.TB) metaCacheEntriesSorted {
	r := loadMetacacheSample(t)

                        try {
                            while (!reader.ready()) {
                                ThreadUtil.sleep(1000L);
                            }
                            command = reader.readLine().trim();
                            if (logger.isDebugEnabled()) {
                                logger.debug("Process command: {}", command);
                            }

     * fit comfortably within a single ethernet packet (1500 bytes) even with framing overhead.
     *
     * For tests this must be big enough to realize real compression on test messages like
     * 'aaaaaaaaaa...'. Our tests check if compression was applied just by looking at the size if
     * the inbound buffer.
     */
    const val DEFAULT_MINIMUM_DEFLATE_SIZE = 1024L

	if err != nil {
		t.Fatal(err)
	}

	for _, drive := range fsDirs {
		dir := path.Join(drive, bucket, object, uuid.String())
		_, err := os.ReadFile(pathJoin(dir, "part.1"))
		if err == nil {
			t.Fatal("expected data dit to be cleaned up")
		}
	}

	// Remove the bucket - to simulate the case where bucket was
	// created when the disk was down.

	// the same type flag but has a completely different layout.
	if blk.getFormat() != FormatGNU {
		return nil, ErrHeader
	}
	hdr.Format.mayOnlyBe(FormatGNU)

	var p parser
	hdr.Size = p.parseNumeric(blk.toGNU().realSize())
	if p.err != nil {
		return nil, p.err
	}
	s := blk.toGNU().sparse()
	spd := make(sparseDatas, 0, s.maxEntries())
	for {
		for i := 0; i < s.maxEntries(); i++ {

	paxGNUSparseName      = "GNU.sparse.name"
	paxGNUSparseMajor     = "GNU.sparse.major"
	paxGNUSparseMinor     = "GNU.sparse.minor"
	paxGNUSparseSize      = "GNU.sparse.size"
	paxGNUSparseRealSize  = "GNU.sparse.realsize"
)

// basicKeys is a set of the PAX keys for which we have built-in support.
// This does not contain "charset" or "comment", which are both PAX-specific,

	"os.FileInfo", "fs.FileInfo",
	"os.FileMode", "fs.FileMode",
	"os.PathError", "fs.PathError",
)

func fileFeatures(filename string, needApproval bool) []string {
	bs, err := os.ReadFile(filename)
	if err != nil {
		log.Fatal(err)
	}
	s := string(bs)

	// Diagnose common mistakes people make,
	// since there is no apifmt to format these files.

    setUp(parameters.first, parameters.second)
    val editor = cache.edit("k1")!!
    editor.setString(0, "ABC")
    editor.setString(1, "B")
    editor.commit()
    val k1 = getCleanFile("k1", 0)
    assertThat(readFile(k1)).isEqualTo("ABC")
    cache.remove("k1")
    assertThat(filesystem.exists(k1)).isFalse()
  }

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)