org.semanticweb.owlapi.reasoner.ReasonerInternalException: it.unibz.inf.ontop.model.OBDAException: java.lang.NullPointerException

GitHub | AllenatChina | 5 months ago
  1. 0

    Capital letters in primary keys (PostgreSQL) caused NullPointerException during reasoner initialization

    GitHub | 5 months ago | AllenatChina
    org.semanticweb.owlapi.reasoner.ReasonerInternalException: it.unibz.inf.ontop.model.OBDAException: java.lang.NullPointerException
  2. 0

    HQL Exception (org.hibernate.dialect.Dialect$3)

    Stack Overflow | 4 years ago | Hari
    java.lang.NullPointerException: null
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  4. 0

    Error loading model properties in JPA on play 2.0.3

    Stack Overflow | 4 years ago | Chappies
    java.lang.NullPointerException: null
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    Why lift can't find my "db.properties"

    Stack Overflow | 5 years ago | Freewind
    java.lang.NullPointerException: null

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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at it.unibz.inf.ontop.sql.UniqueConstraint$Builder.add()
    2. it.unibz.inf
      QuestOWL.flush
      1. it.unibz.inf.ontop.sql.UniqueConstraint$Builder.add(UniqueConstraint.java:65)[na:na]
      2. it.unibz.inf.ontop.sql.DBMetadataExtractor.getUniqueAttributes(DBMetadataExtractor.java:601)[na:na]
      3. it.unibz.inf.ontop.sql.DBMetadataExtractor.loadMetadata(DBMetadataExtractor.java:257)[na:na]
      4. it.unibz.inf.ontop.owlrefplatform.core.Quest.setupRepository(Quest.java:556)[na:na]
      5. it.unibz.inf.ontop.owlrefplatform.owlapi.QuestOWL.prepareQuestInstance(QuestOWL.java:271)[na:na]
      6. it.unibz.inf.ontop.owlrefplatform.owlapi.QuestOWL.prepareReasoner(QuestOWL.java:452)[na:na]
      7. it.unibz.inf.ontop.owlrefplatform.owlapi.QuestOWL.flush(QuestOWL.java:206)[na:na]
      7 frames
    3. Protege OWL Editor
      OWLReasonerManagerImpl$ClassificationRunner.run
      1. org.protege.editor.owl.model.inference.OWLReasonerManagerImpl$ClassificationRunner.ensureRunningReasonerInitialized(OWLReasonerManagerImpl.java:423)[na:na]
      2. org.protege.editor.owl.model.inference.OWLReasonerManagerImpl$ClassificationRunner.run(OWLReasonerManagerImpl.java:382)[na:na]
      2 frames
    4. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)[na:1.8.0_40]
      1 frame