After a year, Amazon still hasn't released an officially-supported AWS Lambda Base Image or Runtime for Java 17. But I needed it, so I made one. You can find the images themselves at <a href="https://gallery.ecr.aws/aleph0io/lambda/java" rel="nofollow">https://gallery.ecr.aws/aleph0io/lambda/java</a>, and the source code on GitHub at <a href="https://github.com/aleph0io/aws-lambda-java-base-images" rel="nofollow">https://github.com/aleph0io/aws-lambda-java-base-images</a>.