protected void revertUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName, ModelNode valueToRestore, ModelNode valueToRevert, String handback) throws
OperationFailedException {
final ServiceRegistry registry = context.getServiceRegistry(true);
ServiceController<?> sc = registry.getRequiredService(JPAService.SERVICE_NAME);
JPAService jpaService = JPAService.class.cast(sc.getValue());
jpaService.setDefaultDataSourceName(handback);
}