public byte []
readCountedString() throws WireParseException {
	int len = readU8();
	return readByteArray(len);
}
Reads a counted string from the stream.  A counted string is a one byte
value indicating string length, followed by bytes of data.
@return A byte array containing the string.
@throws WireParseException The end of the stream was reached.
src/main/java/core/org/xbill/DNS/DNSInput.java