java.lang.NullPointerException

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    • java.lang.NullPointerException: null at org.protege.editor.owl.model.inference.NoOpReasoner.getBottomObjectPropertyNode(NoOpReasoner.java:195)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.lambda$highlightPropertyIfUnsatisfiable$18(OWLCellRenderer.java:913)[protege-editor-owl.jar:na] at org.protege.editor.owl.model.inference.DisplayedInferencePreferences.executeTask(DisplayedInferencePreferences.java:118)[protege-editor-owl.jar:na] at org.protege.editor.owl.model.inference.ReasonerPreferences.executeTask(ReasonerPreferences.java:182)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.highlightPropertyIfUnsatisfiable(OWLCellRenderer.java:908)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.renderToken(OWLCellRenderer.java:807)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.highlightText(OWLCellRenderer.java:743)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.prepareTextPane(OWLCellRenderer.java:715)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.prepareRenderer(OWLCellRenderer.java:483)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.renderer.OWLCellRenderer.getTreeCellRendererComponent(OWLCellRenderer.java:369)[protege-editor-owl.jar:na] at org.protege.editor.owl.ui.tree.OWLObjectTreeCellRenderer.getTreeCellRendererComponent(OWLObjectTreeCellRenderer.java:34)[protege-editor-owl.jar:na] at javax.swing.plaf.basic.BasicTreeUI$NodeDimensionsHandler.getNodeDimensions(BasicTreeUI.java:2807)[na:1.8.0_66]
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