ArcGIS Runtime SDK for Java Samples application includes a sample application "FeatureDataForm (Online)", where you can view (and obviously edit) attributes of a feature. In the source code the attribute window seems to be an instance of a class named FeatureDataForm.
However there is no corresponding import in the code and there is no such class documented in the ArcGIS Runtime SDK for Java API. Nor FeatureDataForm is recognised as a class in Eclipse, so I cannot run this sample application (FeatureDataFormApp) outside the Samples application.
Where does the FeatureDataForm class come from?