This change is included in tomcat9 9.0.16-3~18.04.1 which is published to bionic-proposed. Changelog:
tomcat9 (9.0.16-3~18.04.1) bionic; urgency=medium
* Don't set nologin shell in sysusers.d/tomcat9.conf It is the default anyway and systemd-sysusers in 18.04 can't parse it. (LP: #1823125)
Since this was a proposed-only issue, I am marking this resolved for bionic.
This change is included in tomcat9 9.0.16-3~18.04.1 which is published to bionic-proposed. Changelog:
tomcat9 (9.0.16-3~18.04.1) bionic; urgency=medium
* Don't set nologin shell in sysusers. d/tomcat9. conf
It is the default anyway and systemd-sysusers in 18.04 can't parse it.
(LP: #1823125)
Since this was a proposed-only issue, I am marking this resolved for bionic.