The rationale is the use of Tini together with software that is not able to exit cleanly when terminated with SIGINT, as is the case for the JVM.

When a JVM gets a SIGINT, it runs all shutdownhooks, and then exits with 128 + SIGINT (143). When running on OpenShifts for instance, this will give an error in the UI.

It could always be fixed within a bash-script or something alike, but that is not easy to get right.