ca-certificates-java 20230707 has

Breaks: openjdk-11-jre-headless (<< 11.0.19+7~1~), openjdk-17-jre-headless (<< 17.0.8~6-3~), openjdk-18-jre-headless (<< 18.0.2+9-2ubuntu1~), openjdk-19-jre-headless (<< 19.0.2+7-0ubuntu4~), openjdk-20-jre-headless (<< 20.0.1+9~1~), openjdk-21-jre-headless (<< 21~9ea-1~), openjdk-8-jre-headless (<< 8u382~b04-2~)

with versions concerning ubuntu. This is Debian here! This prevents
its installation in Debian when openjdk-18-jre-headless from unstable
is installed.

openjdk-18 has been removed from testing in November 2022, and I now filed a bug
report to remove it from unstable (#1040789). It is unmaintained upstream, and
superseded by newer OpenJDK releases.

The versions used in these breaks work both for Debian and Ubuntu. If there are
mistakes made, please tell them. Shouting "this is Debian" doesn't help.

I'll close this issue once openjdk-18 is also removed from unstable.