Parsing of Transportation sometimes fails

Summary

Parsing of Transportation objects sometimes fails with a NullPointerException.

Steps to reproduce

Load a CityGML file containing Transportation objects.

What is the current bug behavior?

Loading fails with a NullPointerException.

What is the expected correct behavior?

File should be loaded.

Relevant logs and/or screenshots

Possible cause

The mapping of TrafficArea, AuxiliaryTrafficArea, TrafficSpace and AuxiliaryTrafficSpace does not work correctly, causing the GMLObject to never be set. The mapAbstractTransportationSpace function seems to not be called in some cases.