@Override
public int hashCode() {
int result = id;
result = 31 * result + (port != null ? port.hashCode() : 0);
result = 31 * result + (date != null ? date.hashCode() : 0);
return result;
}
public int hashCode() {
if (empty) return 0;
int hash = 17;
hash = 37 * hash + m.hashCode();
hash = 37 * hash + p.hashCode();
hash = 37 * hash + pfn.hashCode();
return hash;
}