private static final ModelReference<Task> TASK_MODEL_REFERENCE = ModelReference.of(TASK_MODEL_TYPE);
    private static final SimpleModelRuleDescriptor COPY_TO_TASK_CONTAINER_DESCRIPTOR = new SimpleModelRuleDescriptor("copyToTaskContainer");
    private final Instantiator instantiator;
    private final TaskIdentityFactory taskIdentityFactory;
    private final ITaskFactory taskFactory;
    private final CollectionCallbackActionDecorator callbackDecorator;