Null pointers when accessing non-existent attributes

msmobility / silo

SILO Model Java Code

GNU General Public License v2.0

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Null pointers when accessing non-existent attributes #283

Closed nkuehnel closed 4 years ago

nkuehnel commented 4 years ago

Silo currently crashes in ModeChoiceResultsMonitor (muc).

                    int parkingAtHome = (int) dd.getAttributes().get("PARKING_SPACES");

We should be more careful when using those attributes. An idea qould be to offer a method that returns an Optional, such that clients have to take care of possible nulls