openjdk-13-jre-zero 13+33-1 (amd64 binary) in ubuntu eoan

 The package provides an alternative runtime using the Zero VM. Built on
 architectures in addition to the Hotspot VM as a debugging aid for those
 architectures which don't have a Hotspot VM.
 .
 The VM is started with the option `-zero'. See the README.Debian for details.