ShutdownListener listener1 = new ShutdownListener() {
            @Override
            public void onShutdown() {
                callCount.incrementAndGet();
            }
        };

        ShutdownListener listener2 = new ShutdownListener() {
            @Override
            public void onShutdown() {
                callCount.addAndGet(10);
            }
        };

        // Add first listener

    /**
     * Initiates shutdown of the job executor.
     * This method notifies the shutdown listener to perform cleanup operations.
     */
    public void shutdown() {
        shutdownListener.onShutdown();
    }

    /**
     * Adds a shutdown listener to be notified when the executor is shutting down.
     *
     * @param listener the shutdown listener to add
     */

        }
    }

    private static class TestShutdownListener implements JobExecutor.ShutdownListener {
        private boolean shutdownCalled = false;

        @Override
        public void onShutdown() {
            shutdownCalled = true;
        }

        public boolean wasShutdownCalled() {
            return shutdownCalled;
        }
    }

        boolean shutdownListenerAdded = false;

        @Override
        public void addShutdownListener(ShutdownListener listener) {
            shutdownListenerAdded = true;
            listener.onShutdown();
        }

        @Override
        public Object execute(String scriptType, String script) {
            return null;
        }
    }

        @Override
        public void addShutdownListener(ShutdownListener listener) {
            shutdownListenerAdded = true;
            // Optionally execute the listener to test its behavior
            listener.onShutdown();
        }

        @Override
        public Object execute(String scriptType, String script) {
            return null;
        }
    }

    app = FastAPI(on_startup=[app_startup], on_shutdown=[app_shutdown])

    @app.get("/")
    def main() -> dict[str, str]:
        return {"message": "Hello World"}

    def router_startup() -> None:
        state.router_startup = True

    def router_shutdown() -> None:
        state.router_shutdown = True

    router = APIRouter(on_startup=[router_startup], on_shutdown=[router_shutdown])

	TCPOptions    TCPOptions    // all the configurable TCP conn specific configurable options.
	listenerMutex sync.Mutex    // to guard 'listener' field.
	listener      *httpListener // HTTP listener for all 'Addrs' field.
	inShutdown    uint32        // indicates whether the server is in shutdown or not
	requestCount  int32         // counter holds no. of request in progress.
}

// GetRequestCount - returns number of request in progress.

    async def _shutdown(self) -> None:
        """
        Run any `.on_shutdown` event handlers.

        This method is kept for backward compatibility after Starlette removed
        support for on_startup/on_shutdown handlers.

        Ref: https://github.com/Kludex/starlette/pull/3117
        """
        for handler in self.on_shutdown:
            if is_async_callable(handler):
                await handler()

            routes=routes,
            redirect_slashes=redirect_slashes,
            dependency_overrides_provider=self,
            on_startup=on_startup,
            on_shutdown=on_shutdown,
            lifespan=lifespan,
            default_response_class=default_response_class,
            dependencies=dependencies,
            callbacks=callbacks,
            deprecated=deprecated,

## 0.128.6 (2026-02-09)

### Fixes

* 🐛 Fix `on_startup` and `on_shutdown` parameters of `APIRouter`. PR [#14873](https://github.com/fastapi/fastapi/pull/14873) by [@YuriiMotov](https://github.com/YuriiMotov).

### Translations