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

GitHub | AllenatChina | 10 months ago
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  1. 0

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

    GitHub | 10 months ago | AllenatChina
    org.semanticweb.owlapi.reasoner.ReasonerInternalException: it.unibz.inf.ontop.model.OBDAException: java.lang.NullPointerException
  2. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
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    NullPointerException in MIDlet with left soft key

    Stack Overflow | 6 years ago | berry120
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callItemListener(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

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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