Program: 131070
Project: 131070
Buggy source:
/** 
 * Default Constructor
 * @param name Name to be show on the panel
 * @param bgColour Colour for the background of the panel
 * @param f Reference to feature that show be informed when clicked.
 */
public CountPanel(String name,Color bgColour,Feature f){
  super(new BorderLayout());
  this.feature=f;
  this.setBackground(bgColour);
  this.setMinimumSize(new Dimension(125,65));
  this.setMaximumSize(new Dimension(125,65));
  this.setPreferredSize(new Dimension(125,65));
  this.setOpaque(true);
  eventCount.setToolTipText("String_Node_Str");
  eventCount.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
  eventCount.addMouseListener(new MouseAdapter(){
    @Override public void mouseClicked(    MouseEvent e){
      if (!sorted) {
        Collections.sort(events,new TimeStampComparator());
        sorted=true;
      }
      feature.showEventsTable(events);
    }
  }
);
  Font labelFont=eventCount.getFont();
  eventCount.setForeground(Color.white);
  eventCount.setAlignmentX(CENTER_ALIGNMENT);
  eventCount.setFont(new Font(labelFont.getName(),labelFont.getStyle(),16));
  JPanel countPanel=new JPanel();
  countPanel.setLayout(new BoxLayout(countPanel,BoxLayout.PAGE_AXIS));
  countPanel.add(Box.createHorizontalGlue());
  countPanel.add(Box.createVerticalGlue());
  countPanel.add(eventCount);
  countPanel.add(Box.createHorizontalGlue());
  countPanel.add(Box.createVerticalGlue());
  countPanel.setOpaque(false);
  this.add(countPanel,BorderLayout.CENTER);
  JLabel title=new JLabel(name);
  title.setForeground(Color.white);
  title.setAlignmentX(CENTER_ALIGNMENT);
  JPanel titlePanel=new JPanel();
  titlePanel.setLayout(new BoxLayout(titlePanel,BoxLayout.PAGE_AXIS));
  titlePanel.add(Box.createHorizontalGlue());
  titlePanel.add(title,BorderLayout.CENTER);
  titlePanel.add(Box.createHorizontalGlue());
  titlePanel.setOpaque(false);
  this.add(titlePanel,BorderLayout.PAGE_START);
}

Fixed version (ground truth):
/** 
 * Default Constructor
 * @param name Name to be show on the panel
 * @param bgColour Colour for the background of the panel
 * @param f Reference to feature that show be informed when clicked.
 */
public CountPanel(String name,Color bgColour,Feature f){
  super(new BorderLayout());
  this.feature=f;
  this.setBackground(bgColour);
  this.setMinimumSize(new Dimension(125,65));
  this.setMaximumSize(new Dimension(125,65));
  this.setPreferredSize(new Dimension(125,65));
  this.setOpaque(true);
  eventCount.setToolTipText("String_Node_Str");
  eventCount.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
  eventCount.addMouseListener(new MouseAdapter(){
    @Override public void mouseClicked(    MouseEvent e){
      if (!sorted) {
        Collections.sort(events,new TimeStampComparator());
        sorted=true;
      }
      feature.showEventsTable(events);
    }
  }
);
  Font labelFont=eventCount.getFont();
  eventCount.setForeground(Color.white);
  eventCount.setFont(new Font(labelFont.getName(),labelFont.getStyle(),20));
  eventCount.setMinimumSize(new Dimension(115,45));
  eventCount.setMaximumSize(new Dimension(115,45));
  eventCount.setPreferredSize(new Dimension(115,45));
  JPanel countPanel=new JPanel();
  countPanel.setLayout(new BoxLayout(countPanel,BoxLayout.PAGE_AXIS));
  countPanel.add(Box.createHorizontalGlue());
  countPanel.add(Box.createVerticalGlue());
  countPanel.add(eventCount);
  countPanel.add(Box.createHorizontalGlue());
  countPanel.add(Box.createVerticalGlue());
  countPanel.setOpaque(false);
  this.add(countPanel,BorderLayout.CENTER);
  JLabel title=new JLabel(name);
  title.setForeground(Color.white);
  title.setAlignmentX(CENTER_ALIGNMENT);
  JPanel titlePanel=new JPanel();
  titlePanel.setLayout(new BoxLayout(titlePanel,BoxLayout.PAGE_AXIS));
  titlePanel.add(Box.createHorizontalGlue());
  titlePanel.add(title,BorderLayout.CENTER);
  titlePanel.add(Box.createHorizontalGlue());
  titlePanel.setOpaque(false);
  this.add(titlePanel,BorderLayout.PAGE_START);
}