meta_data TBase fieldmetadata fieldname requirementtype fieldvaluemetadata valuemetadata structmap structmap fieldmetadata name req fieldvaluemetadata vmetadata this.fieldname name this.requirementtype req this.valuemetadata vmetadata addstructmetadatamap map structmap.put map getstructmetadatamap structmap.containskey sclass.newinstance instantiationexception e.getmessage illegalaccessexception e.getmessage structmap.get