Program: 10119
Project: 10119
Buggy source:
/** 
 * Konstruktor of the Class Description Editor with integrated DL-Learner Tab.
 * @param editorKit OWLEditorKit
 * @param description OWLDescription
 * @param frame OWLFrame
 * @param label String 
 */
public OWLClassDescriptionEditorWithDLLearnerTab(OWLEditorKit editorKit,OWLDescription description,OWLFrame<OWLClass> frame,String label){
  this.editorKit=editorKit;
  editor=new ExpressionEditor<OWLDescription>(editorKit,editorKit.getModelManager().getOWLExpressionCheckerFactory().getOWLDescriptionChecker());
  editor.setExpressionObject(description);
  dllearner=new DLLearnerView(frame,label);
  action=new ActionHandler(this.action,null,dllearner,null,editorKit);
  tabbedPane=new JTabbedPane();
  tabbedPane.setFocusable(false);
  editingComponent=new JPanel(new BorderLayout());
  editingComponent.add(tabbedPane);
  editingComponent.setPreferredSize(new Dimension(600,520));
  if (dllearner.getNrOfIndividuals() != 0) {
    if (label.equals("String_Node_Str")) {
      tabbedPane.add(SUGGEST_EQUIVALENT_CLASS_LABEL,dllearner);
    }
    if (label.equals("String_Node_Str")) {
      tabbedPane.add(SUGGEST_SUBCLASS_LABEL,dllearner);
    }
  }
  tabbedPane.add(CLASS_EXPRESSION_EDITOR_LABEL,new JScrollPane(editor));
  if (description == null || !description.isAnonymous()) {
    classSelectorPanel=new OWLClassSelectorPanel(editorKit);
    tabbedPane.add(CLASS_TREE_LABEL,classSelectorPanel);
    if (description != null) {
      classSelectorPanel.setSelection(description.asOWLClass());
    }
    classSelectorPanel.addSelectionListener(changeListener);
    restrictionCreatorPanel=new ObjectRestrictionCreatorPanel();
    tabbedPane.add(RESTRICTION_CREATOR_LABEL,restrictionCreatorPanel);
    restrictionCreatorPanel.classSelectorPanel.addSelectionListener(changeListener);
    restrictionCreatorPanel.objectPropertySelectorPanel.addSelectionListener(changeListener);
    tabbedPane.addChangeListener(changeListener);
  }
}

Fixed version (ground truth):
/** 
 * Konstruktor of the Class Description Editor with integrated DL-Learner Tab.
 * @param editorKit OWLEditorKit
 * @param description OWLDescription
 * @param frame OWLFrame
 * @param label String 
 */
public OWLClassDescriptionEditorWithDLLearnerTab(OWLEditorKit editorKit,OWLDescription description,OWLFrame<OWLClass> frame,String label){
  this.editorKit=editorKit;
  editor=new ExpressionEditor<OWLDescription>(editorKit,editorKit.getModelManager().getOWLExpressionCheckerFactory().getOWLDescriptionChecker());
  editor.setExpressionObject(description);
  dllearner=new DLLearnerView(frame,label,this);
  action=new ActionHandler(this.action,null,dllearner,null,editorKit);
  tabbedPane=new JTabbedPane();
  tabbedPane.setFocusable(false);
  editingComponent=new JPanel(new BorderLayout());
  editingComponent.add(tabbedPane);
  editingComponent.setPreferredSize(new Dimension(600,520));
  if (dllearner.getNrOfIndividuals() != 0) {
    if (label.equals("String_Node_Str")) {
      tabbedPane.add(SUGGEST_EQUIVALENT_CLASS_LABEL,dllearner);
    }
    if (label.equals("String_Node_Str")) {
      tabbedPane.add(SUGGEST_SUBCLASS_LABEL,dllearner);
    }
  }
  tabbedPane.add(CLASS_EXPRESSION_EDITOR_LABEL,new JScrollPane(editor));
  if (description == null || !description.isAnonymous()) {
    classSelectorPanel=new OWLClassSelectorPanel(editorKit);
    tabbedPane.add(CLASS_TREE_LABEL,classSelectorPanel);
    if (description != null) {
      classSelectorPanel.setSelection(description.asOWLClass());
    }
    classSelectorPanel.addSelectionListener(changeListener);
    restrictionCreatorPanel=new ObjectRestrictionCreatorPanel();
    tabbedPane.add(RESTRICTION_CREATOR_LABEL,restrictionCreatorPanel);
    restrictionCreatorPanel.classSelectorPanel.addSelectionListener(changeListener);
    restrictionCreatorPanel.objectPropertySelectorPanel.addSelectionListener(changeListener);
    tabbedPane.addChangeListener(changeListener);
  }
}