"integration_tests/java_versions" fails due to lack of "adoptopenjdk/openjdk11-openj9" linux/amd64 image

[dhoard]

Issue

integration_tests/java_versions fails due to lack of adoptopenjdk/openjdk11-openj9 linux/amd64 image.

Related issues/PRs...

AdoptOpenJDK/openjdk-docker#610
https://github.com/docker-library/official-images/pull/10666/files

Proposal

Change JavaVersionsIT to use adoptopenjdk/openjdk11-openj9:alpine

[dhoard]

Resolved with merge of #709