this.tpb = mcf.getTpb().clone();
this.tpb = mcf.getTpb();
    FBManagedConnection(Subject s, FBConnectionRequestInfo cri, FBManagedConnectionFactory mcf) {        this.mcf = mcf;        this.s = s;        this.cri = cri;        this.log = mcf.getLogWriter();        this.tpb = mcf.getTpb().clone();    }