volatile Exception error;
ModelControllerService(final Extension mainExtension, final ControllerInitializer controllerInitializer,
final AdditionalInitialization additionalPreStep, final ExtensionRegistry extensionRegistry,
final ControlledProcessState processState, final StringConfigurationPersister persister, boolean validateOps) {
super(additionalPreStep.getProcessType(), new RunningModeControl(additionalPreStep.getRunningMode()), persister,
processState, DESC_PROVIDER, null, ExpressionResolver.DEFAULT);
this.persister = persister;
this.additionalInit = additionalPreStep;
this.extensionRegistry = extensionRegistry;
this.mainExtension = mainExtension;