Java Data Objects by David Jordan, Craig Russell The unconfirmed error reports are from readers. They have not yet been approved or disproved by the author or editor and represent solely the opinion of the reader. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification This page was updated November 7, 2003. UNCONFIRMED errors and comments from readers: [15] 6th line of code; I believe the method getPropertyOverrides() should not be static, otherwise it cannot be overridden. So the method should start out as: protected Map getPropertyOverrides() {