return this.systemDefined;
}
public Map<String, Object> update(final JsonCommand command) {
if (this.systemDefined) { throw new SystemDefinedCodeCannotBeChangedException(); }
final Map<String, Object> actualChanges = new LinkedHashMap<>(1);
final String firstnameParamName = "name";
if (command.isChangeInStringParameterNamed(firstnameParamName, this.name)) {