Using custom version of Java and GraalVM for native builds

[laurentpellegrino]

I have a micronaut app, configured to build with Java 19:

sourceCompatibility = 19
targetCompatibility = 19

When creating the native image as follows:

gradle clean dockerBuildNative

I get this error:

Fatal error: java.lang.UnsupportedClassVersionError: io/noticeable/widgets/data/Application has been compiled by a more recent version of the Java Runtime (class file version 63.0), this version of the Java Runtime only recognizes class file versions up to 61.0

Looking at the build logs I see:

Task :dockerBuildNative
Building image using context '/home/lpellegr/Projects/noticeable/noticeable-widgets-data/build/docker/native-main'.
Using Dockerfile '/home/lpellegr/Projects/noticeable/noticeable-widgets-data/build/docker/native-main/DockerfileNative'
Using images 'noticeable-widgets-data'.
Step 1/14 : FROM ghcr.io/graalvm/native-image:ol7-java17-22.3.0 AS graalvm

Is there a way to configure the dockerBuildNative task to use java 19 instead of ghcr.io/graalvm/native-image:ol7-java17-22.3.0 AS graalvm?

[laurentpellegrino]

My bad, there is no and there will be no version of GraalVM for version 19 of Java since it is not an LTS version...