There is a broken link in the section _Make the Application Executable_: > The steps described here create a runnable JAR. You can also [build a classic WAR file](https://spring.io/guides/gs/convert-jar-to-war/). The URL [https://spring.io/guides/gs/convert-jar-to-war](https://spring.io/guides/gs/convert-jar-to-war) is no longer available.