Hello Paolo, https://github.com/GoogleCloudPlatform/openjdk-runtime mentions that you can choose the Java runtime.
"To select a jdk version, use the runtime_config.jdk field in app.yaml. Supported JDK versions include openjdk8 and openjdk11." Have you tried this approach? -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/83965dd8-96ed-469b-8a5b-5467a0861853%40googlegroups.com.
