Merge branch '2.3.x'

ci/images/spring-boot-jdk14-ci-image/Dockerfile

@@ -1,12 +0,0 @@
-FROM ubuntu:bionic-20200807
-
-ADD setup.sh /setup.sh
-ADD get-jdk-url.sh /get-jdk-url.sh
-ADD get-docker-url.sh /get-docker-url.sh
-RUN ./setup.sh java14
-
-ENV JAVA_HOME /opt/openjdk
-ENV PATH $JAVA_HOME/bin:$PATH
-ADD docker-lib.sh /docker-lib.sh
-
-ENTRYPOINT [ "switch", "shell=/bin/bash", "--", "codep", "/bin/docker daemon" ]