Downer EDI Rail Pty Ltd v John Holland Pty Ltd; John Holland Pty Ltd v QBE Insurance (Australia) Ltd (No 6); Kellogg Brown & Root Pty Ltd v John Holland Pty Ltd (No 5); John Holland Pty Limited v Kellogg Brown & Root Pty Ltd; Kellogg Brown & Root Pty Ltd v QBE Insurance (Australia) Ltd [2018] NSWSC 581 (2 May 2018)