protected void doStart() {
final Configuration configuration = getConfiguration();
if (schemaUpdate) {
ServiceRegistryBuilder builder = new ServiceRegistryBuilder();
builder.applySettings(configuration.getProperties());
SchemaUpdate update = new SchemaUpdate(builder.buildServiceRegistry(), configuration);
// classic schemaupdate execution, will work with all releases
if(outputFileName == null && delimiter == null && haltOnError && format)
update.execute(scriptToConsole, exportToDatabase);