The build of jtreg-6.1+2 fails with OpenJDK 11.0.18 due to an issue in its build system. This causes issues in the GitHub actions workflow as it uses 11.0.18 for building jtreg after the Jan/2023 CPU. The problem got fixed with
CODETOOLS-7903418 and a new version jtreg-6.1+3 was tagged. We should update jtreg to the new tag to unbreak GHA.