Details
Description
In org.apache.nifi.registry.flow.VersionedComponent the field name groupId does not match the getter/setter getGroupIdentifier.
This causes problems with exporting flows to json using nifi-registry (uses jackson, which references getter/setters) and importing those flows into nifi-stateless (uses gson, which looks at field names).
Changing the field name from groupId to groupIdentifier should fix this problem.