Compute md5

ComputeMD5.java

import org.apache.commons.lang.StringUtils;

private String computeMD5(String string) throws NoSuchAlgorithmException {
  byte[] stringBytes = string.getBytes();

  MessageDigest messageDigest = MessageDigest.getInstance("MD5");
  messageDigest.update(stringBytes, 0, stringBytes.length);

  String md5 = new BigInteger(1, messageDigest.digest()).toString(16);
  md5 = StringUtils.leftPad(md5, 32, '0');

  return md5;
}