in Empire Shipping Co Inc v Owners of the Ship, “Shin Kobe Maru” (1991) 104 ALR 489, at 490, 492 and 494, Gummow J (later a judge in the High Court of Australia, its apex court) decided as follows - “By notice of motion filed 12 October 1989, the defendant moves the court for orders that the originating process in this proceeding be set aside or, in the alternative, that service thereof on the defendant be set aside. The plaintiff invokes the admiralty jurisdiction of the court. The defendant denies that this jurisdiction has been attracted. … There has been division of opinion in England as to the correct approach to be taken in admiralty where an application is brought to set aside the writ and other subsequent proceedings on the ground that the court has no jurisdiction in the matter. … Counsel for Empire indicated a readiness to shoulder a burden expressed in terms drawn from the speech of Lord Radcliffe, that is to say a burden of showing that on consideration of the material before the court on the motion, there was a strong argument for the opinion that the court had jurisdiction. Counsel for YSL submitted, in effect, that on this motion it was for Empire to satisfy the court that, on the same balance of probabilities which would apply at a trial, the issues which now arose should be decided in favour of Empire. This submission reflects what was said by Slynn J in The “Aventicum”, supra. Nevertheless, in the light of what has been said in the High Court as to the appropriate method of dealing with motions challenging jurisdiction, both as regards the existence of federal jurisdiction (of which this case, after all, is one) and as to the existence of “long arm” or “exorbitant” jurisdiction, I should accept the submission for Empire.” (emphasis added); and