post_install() {
  echo "Users need to be in 'lock' and 'uucp' groups to connect to devices"
  systemd-sysusers "/usr/lib/sysusers.d/java-rxtx.conf"
  systemd-tmpfiles --create "/usr/lib/tmpfiles.d/java-rxtx.conf"
}

post_upgrade() {
  systemd-sysusers "/usr/lib/sysusers.d/java-rxtx.conf"
  systemd-tmpfiles --create "/usr/lib/tmpfiles.d/java-rxtx.conf"
}
