Program: 166750
Project: 166750
Buggy source:
public void update(){
  List<String[]> interpretations=new ArrayList();
  List<InputAction> actions=new ArrayList();
  String input=inputText.getText();
  for (  final TextInputMode t : modes) {
    t.setInputState(nar,input);
    String interp=t.getInterpretation();
    if (interp != null) {
      interpretations.add(new String[]{t.getClass().getSimpleName(),interp});
    }
    t.getActions(actions);
  }
  menu.removeAll();
  comments.setText("String_Node_Str");
  for (  String[] i : interpretations) {
    Color c=NARSwing.getColor(i[0],0.7f,0.6f);
    comments.print(Color.WHITE,c,i[0] + "String_Node_Str");
    Color c2=NARSwing.getColor(i[0],0.5f,0.3f);
    comments.print(Color.WHITE,c2,i[1] + "String_Node_Str");
  }
  if (comments.getText().length() > 0) {
    if (!isVisible()) {
      int ll=mainSplit.getLastDividerLocation();
      if (ll <= 0)       ll=(int)(getWidth() * 0.75);
      if (getWidth() == 0) {
        ll=500;
      }
      mainSplit.setDividerLocation(ll);
      mainSplit.setLastDividerLocation(ll);
      setVisible(true);
    }
  }
 else {
    if (isVisible()) {
      mainSplit.setLastDividerLocation(mainSplit.getDividerLocation());
      setVisible(false);
    }
  }
  defaultButton=null;
  double maxStrength=0;
  for (  InputAction a : actions) {
    JButton b=new JButton(a.getLabel());
    double strength=a.getStrength();
    if (strength > maxStrength) {
      defaultButton=b;
      maxStrength=strength;
    }
    b.setFont(b.getFont().deriveFont((float)(b.getFont().getSize() * (0.5f + 0.5f * strength))));
    b.addActionListener(new ActionListener(){
      @Override public void actionPerformed(      ActionEvent e){
        SwingUtilities.invokeLater(new Runnable(){
          @Override public void run(){
            String result=a.run();
            if (result != null) {
              inputText.setText(result);
            }
          }
        }
);
      }
    }
);
    menu.add(b);
  }
  menu.validate();
  menu.repaint();
  validate();
  repaint();
}

Fixed version (ground truth):
public void update(){
  List<String[]> interpretations=new ArrayList();
  List<InputAction> actions=new ArrayList();
  String input=inputText.getText();
  for (  final TextInputMode t : modes) {
    t.setInputState(nar,input);
    String interp=t.getInterpretation();
    if (interp != null) {
      interpretations.add(new String[]{t.getClass().getSimpleName(),interp});
    }
    t.getActions(actions);
  }
  menu.removeAll();
  comments.setText("String_Node_Str");
  for (  String[] i : interpretations) {
    Color c=Video.getColor(i[0],0.7f,0.6f);
    comments.print(Color.WHITE,c,i[0] + "String_Node_Str");
    Color c2=Video.getColor(i[0],0.5f,0.3f);
    comments.print(Color.WHITE,c2,i[1] + "String_Node_Str");
  }
  if (comments.getText().length() > 0) {
    if (!isVisible()) {
      int ll=mainSplit.getLastDividerLocation();
      if (ll <= 0)       ll=(int)(getWidth() * 0.75);
      if (getWidth() == 0) {
        ll=500;
      }
      mainSplit.setDividerLocation(ll);
      mainSplit.setLastDividerLocation(ll);
      setVisible(true);
    }
  }
 else {
    if (isVisible()) {
      mainSplit.setLastDividerLocation(mainSplit.getDividerLocation());
      setVisible(false);
    }
  }
  defaultButton=null;
  double maxStrength=0;
  for (  InputAction a : actions) {
    JButton b=new JButton(a.getLabel());
    double strength=a.getStrength();
    if (strength > maxStrength) {
      defaultButton=b;
      maxStrength=strength;
    }
    b.setFont(b.getFont().deriveFont((float)(b.getFont().getSize() * (0.5f + 0.5f * strength))));
    b.addActionListener(new ActionListener(){
      @Override public void actionPerformed(      ActionEvent e){
        SwingUtilities.invokeLater(new Runnable(){
          @Override public void run(){
            String result=a.run();
            if (result != null) {
              inputText.setText(result);
            }
          }
        }
);
      }
    }
);
    menu.add(b);
  }
  menu.validate();
  menu.repaint();
  validate();
  repaint();
}