code: public static String normalisedVersion(String version, String sep,
  			int maxWidth) {
  		if (version == null) {
  			return null;
  		}
  		String[] split = Pattern.compile(sep, Pattern.LITERAL).split(version);
  		StringBuilder sb = new StringBuilder();
  		for (String s : split) {
  			sb.append(String.format("%" + maxWidth + 's', s));
  		}
  		return sb.toString();
  	}
docs: Normalizes a version string.
  
  @param version
  @param sep
  @param maxWidth
  @return