/**
  Truncate a String to the given length with no warnings
  or error raised if it is bigger.

  @param  value String to be truncated
  @param  length  Maximum length of string

  @return Returns value if value is null or value.length() is less or equal to than length, otherwise a String representing
    value truncated to length.
*/
public static String truncate(String value, int length)
{
  if (value != null && value.length() > length)
    value = value.substring(0, length);
  return value;
}