rem: return QxListView._blankURI; 
add: return (new QxImageManager).buildURI("core/blank.gif"); 
context: proto._validateDataDefaultGetter = function(cType){  switch(cType)  {    case "text":      return String.fromCharCode(160);    case "image":      return QxListView._blankURI;    // ******************************    // EXTEND WITH NEW TYPES HERE    // ******************************    default:      throw new Error("No default Value available for content: " + cType);  };};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/b8839390fcf358d1d3af1e061ae1f5373ea9a86d/QxListView.js/buggy/qooxdoo/source/script/widgets/QxListView.js