public PolicyFile(URL defaultPolicy) { if (defaultPolicy == null) { throw new IllegalArgumentException( "defaultPolicy cannot be null"); } this.defaultPolicy = defaultPolicy;
public PolicyFile() {
    public PolicyFile(URL defaultPolicy) {        if (defaultPolicy == null) { throw new IllegalArgumentException(                "defaultPolicy cannot be null"); }        this.defaultPolicy = defaultPolicy;        cs2pc = new HashMap();        refresh();    }