public static Long makeLong(String s){
  if (WWUtil.isEmpty(s)) {
    return null;
  }
  try {
    return Long.valueOf(s);
  }
 catch (  NumberFormatException e) {
    return null;
  }
}

public static Long makeLong ( String s ) { if ( WWUtil . isEmpty ( s ) ) { return null ; } try { return Long . valueOf ( s ) ; } catch ( NumberFormatException e ) { return null ; } }
parses a string to a long value if the string can be parsed as a long . does not log a message if the string can not be parsed as a long .
