public static Integer getInteger(String nm, Integer def)
public static Integer getInteger(String nm)
  public static Integer getInteger(String nm, Integer def)  {    if (nm == null || "".equals(nm))      return def;    nm = System.getProperty(nm);    if (nm == null)      return def;    try      {        return decode(nm);      }    catch (NumberFormatException e)      {        return def;      }  }