The Docker Hub build image uses frolvlad/alpine-oraclejdk8:slim while the dev image uses develar/java:8u45. The first image uses a much more recent JDK than the latter one, and for the first time today that caused different behavior in the images. At a minimum we should ensure that both Docker images are using the same version of Java. It looks like frolvlad has both a JDK and a JRE image available. Perhaps a multi-stage build would be appropriate.
It would be nice as well to make sure we use a JDK to build, but a JRE in the final image.
The Docker Hub build image uses
frolvlad/alpine-oraclejdk8:slimwhile the dev image usesdevelar/java:8u45. The first image uses a much more recent JDK than the latter one, and for the first time today that caused different behavior in the images. At a minimum we should ensure that both Docker images are using the same version of Java. It looks like frolvlad has both a JDK and a JRE image available. Perhaps a multi-stage build would be appropriate.It would be nice as well to make sure we use a JDK to build, but a JRE in the final image.