}
@Override
public ModelNode getModelDescription(Locale locale) {
ModelType valueType = null;
DescriptionProvider delegate = new DefaultOperationDescriptionProvider(OPERATION_NAME,
DomainRootDescription.getResourceDescriptionResolver("domain"), ModelType.STRING, valueType, ResolveExpressionHandler.EXPRESSION);
ModelNode result = delegate.getModelDescription(locale);
result.get(ModelDescriptionConstants.REPLY_PROPERTIES, ModelDescriptionConstants.NILLABLE).set(true);
return result;
}