rem: else if (qx.util.validator.isValidString(this.getSource())) 
add: else if (qx.util.Validation.isValidString(this.getSource())) 
context: proto._computePreferredInnerWidth = function(){  if (this.getLoaded())  {    return this.getPreloader().getWidth();  }  else if (qx.util.validator.isValidString(this.getSource()))  {    var vPreloader = qx.manager.object.ImagePreloaderManager.get(qx.manager.object.ImageManager.buildUri(this.getSource()));    if (vPreloader && vPreloader.isLoaded()) {      return vPreloader.getWidth();    };  };  return 0;};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/cfcbb829f6fba5c885606fde737b1ad8b88fe740/QxImage.js/buggy/qooxdoo/source/script/widgets/QxImage.js