Mine

/* * MD5.java * * Created on May 15, 2007, 2:51 PM * * To change this template, choose Tools | Template Manager * and open the template in the editor. */package ecommercetest;import java.security.MessageDigest;/** * * @author gharding */public class MD5 {        /** Creates a new instance of MD5 */    public MD5() {    }        static final char[] HEX = "0123456789abcdef".toCharArray();     public static String bytesToHex (byte[] bytes) {        if (bytes == null) return "";        StringBuffer sb = new StringBuffer (2 * bytes.length);        for (int i = 0; i < bytes.length; ++i) {            sb.append (HEX[(bytes[i]>>4)&0xF]);            sb.append (HEX[bytes[i]&0xF]);        }        return sb.toString();    }        public static String hash(String pass) {        try {            MessageDigest gen = MessageDigest.getInstance("MD5");            gen.update(pass.getBytes());            String hash = bytesToHex(gen.digest());            return hash;        } catch (Exception e) {}        return null;    }    }