java.lang.NullPointerException

GitHub | naditina | 8 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at org.semanticweb.elk.util.collections.ArrayHashMap.get()
  2. org.semanticweb.elk
    OwlOntologyChangeProcessorVisitor.visit
    1. org.semanticweb.elk.util.collections.ArrayHashMap.get(ArrayHashMap.java:203)
    2. org.semanticweb.elk.util.collections.chains.AbstractChain$1.next(AbstractChain.java:105)
    3. org.semanticweb.elk.util.collections.chains.AbstractChain$1.next(AbstractChain.java:101)
    4. org.semanticweb.elk.util.collections.chains.AbstractChain.find(AbstractChain.java:42)
    5. org.semanticweb.elk.reasoner.indexing.hierarchy.IndexedSubClassOfAxiom$ThisCompositionRule.removeFrom(IndexedSubClassOfAxiom.java:162)
    6. org.semanticweb.elk.reasoner.indexing.hierarchy.DifferentialIndex.add(DifferentialIndex.java:172)
    7. org.semanticweb.elk.reasoner.indexing.hierarchy.IndexedSubClassOfAxiom.updateOccurrenceNumbers(IndexedSubClassOfAxiom.java:85)
    8. org.semanticweb.elk.reasoner.indexing.hierarchy.MainAxiomIndexerVisitor$AxiomOccurrenceUpdateFilter.update(MainAxiomIndexerVisitor.java:384)
    9. org.semanticweb.elk.reasoner.indexing.hierarchy.MainAxiomIndexerVisitor$AxiomOccurrenceUpdateFilter.visit(MainAxiomIndexerVisitor.java:394)
    10. org.semanticweb.elk.reasoner.indexing.hierarchy.MainAxiomIndexerVisitor$AxiomOccurrenceUpdateFilter.visit(MainAxiomIndexerVisitor.java:373)
    11. org.semanticweb.elk.reasoner.indexing.hierarchy.MainAxiomIndexerVisitor.indexSubClassOfAxiom(MainAxiomIndexerVisitor.java:148)
    12. org.semanticweb.elk.reasoner.indexing.hierarchy.AbstractElkAxiomIndexerVisitor.visit(AbstractElkAxiomIndexerVisitor.java:166)
    13. org.semanticweb.elk.reasoner.indexing.hierarchy.AbstractElkAxiomIndexerVisitor.visit(AbstractElkAxiomIndexerVisitor.java:63)
    14. org.semanticweb.elk.owlapi.wrapper.ElkEquivalentClassesAxiomWrap.accept(ElkEquivalentClassesAxiomWrap.java:61)
    15. org.semanticweb.elk.owlapi.wrapper.ElkClassAxiomWrap.accept(ElkClassAxiomWrap.java:51)
    16. org.semanticweb.elk.reasoner.indexing.hierarchy.DelegatingElkAxiomVisitor.visit(DelegatingElkAxiomVisitor.java:103)
    17. org.semanticweb.elk.reasoner.indexing.hierarchy.DelegatingElkAxiomVisitor.visit(DelegatingElkAxiomVisitor.java:74)
    18. org.semanticweb.elk.owlapi.wrapper.ElkEquivalentClassesAxiomWrap.accept(ElkEquivalentClassesAxiomWrap.java:61)
    19. org.semanticweb.elk.owlapi.wrapper.ElkClassAxiomWrap.accept(ElkClassAxiomWrap.java:51)
    20. org.semanticweb.elk.reasoner.indexing.hierarchy.ChangeIndexingProcessor.visit(ChangeIndexingProcessor.java:57)
    21. org.semanticweb.elk.owlapi.OwlOntologyChangeProcessorVisitor.visit(OwlOntologyChangeProcessorVisitor.java:78)
    22. org.semanticweb.elk.owlapi.OwlOntologyChangeProcessorVisitor.visit(OwlOntologyChangeProcessorVisitor.java:39)
    22 frames
  3. org.semanticweb.owlapi
    AddAxiom.accept
    1. org.semanticweb.owlapi.model.AddAxiom.accept(AddAxiom.java:76)
    1 frame
  4. org.semanticweb.elk
    ElkReasoner.precomputeInferences
    1. org.semanticweb.elk.owlapi.OwlChangesLoader.load(OwlChangesLoader.java:90)
    2. org.semanticweb.elk.reasoner.stages.AxiomLoadingStage.executeStage(AxiomLoadingStage.java:121)
    3. org.semanticweb.elk.reasoner.stages.AbstractReasonerStage.execute(AbstractReasonerStage.java:165)
    4. org.semanticweb.elk.reasoner.stages.AxiomLoadingStage.execute(AxiomLoadingStage.java:45)
    5. org.semanticweb.elk.reasoner.stages.LoggingStageExecutor.execute(LoggingStageExecutor.java:53)
    6. org.semanticweb.elk.reasoner.stages.AbstractStageExecutor.complete(AbstractStageExecutor.java:55)
    7. org.semanticweb.elk.reasoner.stages.AbstractReasonerState.complete(AbstractReasonerState.java:145)
    8. org.semanticweb.elk.reasoner.stages.AbstractReasonerState.loadAxioms(AbstractReasonerState.java:306)
    9. org.semanticweb.elk.reasoner.stages.AbstractReasonerState.isInconsistent(AbstractReasonerState.java:284)
    10. org.semanticweb.elk.reasoner.stages.AbstractReasonerState.getTaxonomy(AbstractReasonerState.java:324)
    11. org.semanticweb.elk.owlapi.ElkReasoner.precomputeInferences(ElkReasoner.java:942)
    11 frames
  5. simplification
    ConceptMinimizer.computeConjunctions
    1. simplification.ConceptMinimizer.computeConjunctions(ConceptMinimizer.java:254)
    1 frame