String ls = SystemProperties.getProperty("line.separator");
String ls = (String) AccessController.doPrivileged (new GetPropertyAction("line.separator"));
  public String toString()  {    if (str == null)      {        String ls = SystemProperties.getProperty("line.separator");        str = new StringBuilder(this.getClass().getName()).append("(")        .append(super.toString()).append(",").append(ls)        .append("y=0x").append(y.toString(16)).append(ls)        .append(")").toString();      }    return str;  }