public static String parseString(String str, String def){
        if (str == null)
            return def;
        else
            return str;
    }
Parses an integer from a string, if the string is null returns
def.

@param i The string to parse
@param def The default value if the string is null
@return the parsed value or def
@throws SAXException in case of a syntax error
jme3-core/src/main/java/com/jme3/util/xml/SAXUtil.java