Loading bayesian network from BIF-file

I'm trying to load a bayesian network from a BIF file to be able to validate it against a test-set.
However, I keep getting a null-pointer because m_MissingValuesFilter is not set.

Currently my code looks as follows:

        BIFReader reader = new BIFReader();
        BIFReader network = reader.processFile(target);

        network.buildStructure();

        Evaluation eval = new Evaluation(testData);
        eval.evaluateModel(network, testData);

Does anyone have any advice?
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