public ComponentManager createComponentManager( ComponentDescriptor descriptor, MutablePlexusContainer container) throws UndefinedComponentManagerException, UndefinedLifecycleHandlerException { String componentManagerId = descriptor.getInstantiationStrategy(); ComponentManager componentManager; if (componentManagerId == null) { componentManagerId = defaultComponentManagerId; } componentManager = copyComponentManager(componentManagerId); componentManager.setup(container, findLifecycleHandler(descriptor), descriptor); componentManager.initialize(); activeComponentManagers.put(descriptor.getComponentKey(), componentManager); return componentManager; }