Is your feature request related to a problem? Please describe.

This might be a problem, I'd have to test if record types are modelled at all (as classes?) by the current doclet or if they are simply ignored.

Describe the solution you'd like

Make the record types recognizable in the diagrams.

Describe alternatives you've considered

Just let the default behaviour exist.

Additional context

Be sure that although the doclet supports this Java 14 language feature, it can still be used with Javadoc version 9!