public static byte[] decodeMacAddress(final String mac) { final StringTokenizer tokens = new StringTokenizer(mac, "-"); if (tokens.countTokens() != MAC_ADDRESS_TOKENS) { throw new IllegalArgumentException("Unexpected mac address representation: " + mac); } final StringBuilder buf = new StringBuilder(MAC_ADDRESS_TOKENS * 2); for (int i = 0; i < MAC_ADDRESS_TOKENS; i++) { buf.append(tokens.nextToken()); } char[] c = buf.toString().toCharArray(); return StringUtils.decodeHex(c); }