rem: else if (qx.util.validator.isInvalidString(propValue)) 
add: else if (qx.util.Validation.isInvalidString(propValue)) 
context: qx.renderer.border.BorderCache = function(propValue, propData){  if (qx.util.validator.isValidArray(propValue) && propValue.length > 1)  {    propString = QxConst.CORE_EMPTY;    for (var i=0, l=propValue.length, p; i<l; i++)    {      p = propValue[i];      propString += p;      if (typeof p === QxConst.TYPEOF_NUMBER) {        propString += QxConst.CORE_PIXEL;      };      if (i<(l-1)) {        propString += QxConst.CORE_SPACE;      };    };    propValue = propString;  }  else if (qx.util.validator.isInvalidString(propValue))  {    return propValue;  };  if (qx.renderer.border.BorderCache._data[propValue]) {    return qx.renderer.border.BorderCache._data[propValue];  };  return qx.renderer.border.BorderCache._data[propValue] = qx.renderer.border.BorderObject.fromString(propValue);};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/cfcbb829f6fba5c885606fde737b1ad8b88fe740/QxBorderCache.js/clean/qooxdoo/source/script/gui/QxBorderCache.js