Configuring Java version in a Maven based app

There’s a couple of different ways to configure the Java version for an app in your Maven pom.xml file.

The simplest is with the following properties:

<properties>
  <maven.compiler.source>17</maven.compiler.source>
  <maven.compiler.target>17</maven.compiler.target>
</properties>

If you’re configuring a Spring Boot app with Maven, you can also use this single property (only works for a Spring Boot app using the starter parent spring-boot-starter-parent) to override the Spring Boot default:

<properties>
    <java.version>17</java.version>
</properties>