java.lang.NullPointerException: classExpression cannot be null

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  • GitHub comment 12#254054308
    via GitHub by cbobed
    ,
    • java.lang.NullPointerException: classExpression cannot be null at org.semanticweb.owlapi.util.OWLAPIPreconditions.checkNotNull(OWLAPIPreconditions.java:98) at uk.ac.manchester.cs.owl.owlapi.OWLDataFactoryImpl.getOWLClassAssertionAxiom(OWLDataFactoryImpl.java:1305) at uk.ac.manchester.cs.owl.owlapi.OWLDataFactoryImpl.getOWLClassAssertionAxiom(OWLDataFactoryImpl.java:1296) at org.semanticweb.owlapi.util.InferredClassAssertionAxiomGenerator.addAxioms(InferredClassAssertionAxiomGenerator.java:41) at org.semanticweb.owlapi.util.InferredClassAssertionAxiomGenerator.addAxioms(InferredClassAssertionAxiomGenerator.java:32) at org.semanticweb.owlapi.util.InferredEntityAxiomGenerator.createAxioms(InferredEntityAxiomGenerator.java:51) at OWLReasonerPersistenceTest.retrieveAllInferredAxioms(OWLReasonerPersistenceTest.java:395) at OWLReasonerPersistenceTest.main(OWLReasonerPersistenceTest.java:388)
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