65bf5f7c81
This commit adds a new JDK 18 variant to the CI build image and configures a JDK18 build (sources compiled with JDK17, tests compiled and run with JDK18) to the CI pipeline. Closes gh-27607
== CI Images These images are used by CI to run the actual builds. To build the image locally run the following from this directory: ---- $ docker build --no-cache -f <image-folder>/Dockerfile . ---- For example ---- $ docker build --no-cache -f spring-framework-ci-image/Dockerfile . ---- To test run: ---- $ docker run -it --entrypoint /bin/bash <SHA> ----