---
title: "Shutdown and Draining"
description: "Learn more about the default behavior of our SDK if the application shuts down unexpectedly."
url: https://docs.sentry.io/platforms/java/guides/spring-boot/configuration/draining/
---

# Shutdown and Draining | Sentry for Spring Boot

By default the SDK sends out events over the network on a background thread. This means that some events might be lost if the application shuts down unexpectedly. The SDK provides mechanisms to cope with this.

The Java SDK automatically shuts down on JVM exit and waits `shutdownTimeoutMillis` milliseconds before that happens.