List<PropertyDescription> xmlPropDesc = null;
if (classSchem.isAnnotationPresent(SchemaExtensionDefinition.class)) {
schemDefAnnot = classSchem
.getAnnotation(SchemaExtensionDefinition.class);
// Try to find and load XML Properties Descriptions file path
if (!schemDefAnnot.property_descriptions().equals("")) {
XMLPropertiesDescriptionManager propManag = new XMLPropertiesDescriptionManager();
propManag.loadListFromXML(classSchem, schemDefAnnot
.property_descriptions());
xmlPropDesc = propManag.getPropertiesDescriptionList();
}