if hadQ {
		resh.RCode = dnsmessage.RCodeSuccess
	} else {
		resh.RCode = dnsmessage.RCodeNotImplemented
	}
	a.rbuf.Grow(514)
	a.rbuf.WriteByte('X') // reserved header for beu16 length
	a.rbuf.WriteByte('Y') // reserved header for beu16 length
	builder := dnsmessage.NewBuilder(a.rbuf.Bytes(), resh)
	a.builder = &builder
	if hadQ {
		a.q = q
		a.builder.StartQuestions()
		err := a.builder.Question(q)

        String doc = "<?xml version='1.0'?><doc><child>foo</child></doc>";
        StringReader r = new StringReader(doc + doc) {
            @Override
            public int read(char[] cbuf, int off, int len) throws IOException {
                return super.read(cbuf, off, 1);
            }
        };
        XmlNode node1 = XmlNodeBuilder.build(r);
        XmlNode node2 = XmlNodeBuilder.build(r);
        assertEquals(node1, node2);
    }

	}

	ehdrFlags = initEhdrFlags

	base := f.Offset()

	var hdrbuf [64]byte
	if _, err := io.ReadFull(f, hdrbuf[:]); err != nil {
		return errorf("malformed elf file: %v", err)
	}

	var e binary.ByteOrder
	switch elf.Data(hdrbuf[elf.EI_DATA]) {
	case elf.ELFDATA2LSB:
		e = binary.LittleEndian

	case elf.ELFDATA2MSB:
		e = binary.BigEndian

            def stdout = new java.io.Writer() {
                def buffer = new StringBuilder()
                def written = false

                void write(char[] cbuf, int off, int len) {
                    buffer.append(cbuf, off, len)
                    if (!written && buffer.toString().contains('$PROMPT')) {
                        written = true

	//   all counters, or possibly mmap the file and do the write
	//   implicitly.
	ctrb := make([]byte, 4)
	wrval := func(val uint32) error {
		var buf []byte
		var towr int
		if cfw.cflavor == coverage.CtrRaw {
			binary.LittleEndian.PutUint32(ctrb, val)
			buf = ctrb
			towr = 4
		} else if cfw.cflavor == coverage.CtrULeb128 {
			cfw.tmp = cfw.tmp[:0]

        this.in = new Reader() {
            Reader delegate = null;

            @Override
            public int read(char[] cbuf, int off, int len) throws IOException {
                if (delegate == null) {
                    delegate = transform(original);
                }
                return delegate.read(cbuf, off, len);
            }

            @Override
            public void close() throws IOException {

		}

		rbuf := make([]byte, 2500)
		n, err := io.ReadFull(resp.Body, rbuf)
		checkErr(err, "2500 byte ReadFull")
		if n != 2500 {
			fatalf("ReadFull only read %d bytes", n)
		}
		if test.compressed == false && !bytes.Equal(bytes.Repeat([]byte{'x'}, 2500), rbuf) {
			fatalf("ReadFull didn't read 2500 'x'; got %q", string(rbuf))
		}
		resp.Body.Close()

//
// Callers should set the unwindSilentErrors flag on u.
func tracebackPCs(u *unwinder, skip int, pcBuf []uintptr) int {
	var cgoBuf [32]uintptr
	n := 0
	for ; n < len(pcBuf) && u.valid(); u.next() {
		f := u.frame.fn
		cgoN := u.cgoCallers(cgoBuf[:])

		// TODO: Why does &u.cache cause u to escape? (Same in traceback2)

    private static final boolean VERBOSE = false; // debug

    protected static final Reader ILLEGAL_STATE_READER = new Reader() {
        @Override
        public int read(final char[] cbuf, final int off, final int len) {
            throw new IllegalStateException("TokenStream contract violation: reset()/close() call missing, "
                    + "reset() called multiple times, or subclass does not call super.reset(). "

		}

		if o.negative {
			fmt.Fprintf(&errbuf, "%s:%d: %s: wrong opcode found: %q\n", t.goFileName(), o.line, env, o.opcode.String())
		} else {
			fmt.Fprintf(&errbuf, "%s:%d: %s: opcode not found: %q\n", t.goFileName(), o.line, env, o.opcode.String())
		}
	}
	return errors.New(errbuf.String())
}

// defaultRunOutputLimit returns the number of runoutput tests that