* @param arrays zero or more {@code byte} arrays
   * @return a single array containing all the values from the source arrays, in order
   */
  public static byte[] concat(byte[]... arrays) {
    int length = 0;
    for (byte[] array : arrays) {
      length += array.length;
    }
    byte[] result = new byte[length];
    int pos = 0;
    for (byte[] array : arrays) {
      System.arraycopy(array, 0, result, pos, array.length);

   * @param arrays zero or more {@code byte} arrays
   * @return a single array containing all the values from the source arrays, in order
   */
  public static byte[] concat(byte[]... arrays) {
    int length = 0;
    for (byte[] array : arrays) {
      length += array.length;
    }
    byte[] result = new byte[length];
    int pos = 0;
    for (byte[] array : arrays) {
      System.arraycopy(array, 0, result, pos, array.length);

Brian Avery <******@****.***> 1620951743 -0400

    byte[] encode(Closure<Encoder> closure) {
        def bytes = new ByteArrayOutputStream()
        encodeTo(bytes, closure)
        return bytes.toByteArray()
    }

    byte[] truncate(Closure<Encoder> closure) {
        def bytes = new ByteArrayOutputStream()
        encodeTo(bytes, closure)
        def result = bytes.toByteArray()
        if (result.length < 2) {

        }
        int byte2 = bytes[index++];
        if (byte2 > (byte) 0xBF
            // Overlong? 5 most significant bits must not all be zero.
            || (byte1 == (byte) 0xE0 && byte2 < (byte) 0xA0)
            // Check for illegal surrogate codepoints.
            || (byte1 == (byte) 0xED && (byte) 0xA0 <= byte2)
            // Third byte trailing-byte test.
            || bytes[index++] > (byte) 0xBF) {
          return false;

        }
        int byte2 = bytes[index++];
        if (byte2 > (byte) 0xBF
            // Overlong? 5 most significant bits must not all be zero.
            || (byte1 == (byte) 0xE0 && byte2 < (byte) 0xA0)
            // Check for illegal surrogate codepoints.
            || (byte1 == (byte) 0xED && (byte) 0xA0 <= byte2)
            // Third byte trailing-byte test.
            || bytes[index++] > (byte) 0xBF) {
          return false;

              0x13579bdf,
              null,
              "df9b5713"),
          new ExpectedHashCode(
              new byte[] {(byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00},
              0x0000abcd,
              null,
              "cdab0000"),
          new ExpectedHashCode(
              new byte[] {
                (byte) 0xef, (byte) 0xcd, (byte) 0xab, (byte) 0x00,

	ANDCC $7, R3, R15
	BEQ   zero512xsetup // at least 8 byte aligned

	// zero bytes up to 8 byte alignment

	ANDCC $1, R3, R15 // check for byte alignment
	BEQ   byte2
	MOVB  R0, 0(R3)   // zero 1 byte
	ADD   $1, R3      // bump ptr by 1
	ADD   $-1, R4

byte2:
	ANDCC $2, R3, R15 // check for 2 byte alignment
	BEQ   byte4
	MOVH  R0, 0(R3)   // zero 2 bytes
	ADD   $2, R3      // bump ptr by 2
	ADD   $-2, R4

        def file = tmpDir.file("thing.zip")

        when:
        builder.jar(file) {
            it.put("a.class", "bytes".bytes)
            it.put("dir/b.class", "bytes".bytes)
            it.put("dir/c.class", "bytes".bytes)
            it.put("dir/sub/d.class", "bytes".bytes)
        }

        then:
        def zip = new ZipTestFixture(file)

	{"", 1000, nil},
	{"foo", 0, nil},
	{"bytes=", 0, nil},
	{"bytes=7", 10, nil},
	{"bytes= 7 ", 10, nil},
	{"bytes=1-", 0, nil},
	{"bytes=5-4", 10, nil},
	{"bytes=0-2,5-4", 10, nil},
	{"bytes=2-5,4-3", 10, nil},
	{"bytes=--5,4--3", 10, nil},
	{"bytes=A-", 10, nil},
	{"bytes=A- ", 10, nil},
	{"bytes=A-Z", 10, nil},
	{"bytes= -Z", 10, nil},
	{"bytes=5-Z", 10, nil},
	{"bytes=Ran-dom, garbage", 10, nil},