[18] Martinek relies upon the decision of the New South Wales Courts in John Holland Pty Ltd v Roads and Traffic Authority of New South Wales,[7] but in that case the contract in question did not contain an equivalent of cl 37.4(d). It should be noted that the contract in issue in John Holland expressly provided by cl 42.7.1(d) that "the Superintendent must issue a Final Payment Schedule within 28 days after receipt of the Final Statement if: ... (d) there are no outstanding claims or disputes between the Contractor and the Principal." It may be that, as was urged on behalf of Martinek, the superintendent under the contract at issue in John Holland might himself have resolved the "outstanding ... disputes" in the course of arriving at the Final Payment Schedule. But to say this is merely to emphasise that the contract at issue in John Holland contemplated that the superintendent's certificate was capable of settling accounts finally between the parties. In this case, cl 42, which provides the relevant dispute resolution mechanism, excludes that possibility. Further, in the contract in issue in John Holland, cl 42.5 provided that the issue of the Final Payment Schedule under cl 42.7 constitutes "conclusive evidence that all work under the Contract has been finally and satisfactorily executed ... except in so far as it is provided [sic] in any proceedings ... or ... arbitration ... that the said Final Payment Schedule is erroneous by reason of fraud, defects or omissions or accidental or arithmetical error." The effect of this provision was to make the Final Payment Schedule "conclusive evidence" until the contrary was established as a fact. Here cl 37.4(d) operates to deny even that effect to the superintendent's final certificate while disputes under cl 42 are unresolved.