Program: 9790
Project: 9790
Buggy source:
/** 
 * This method initializes the components for the wizard dialog: it creates a JFrame as a CardLayout panel surrounded by a small amount of space on each side, as well as three buttons at the bottom.
 */
private void initComponents(){
  wizardModel.addPropertyChangeListener(this);
  wizardController=new WizardController(this);
  wizardDialog.getContentPane().setLayout(new BorderLayout());
  wizardDialog.addWindowListener(this);
  JPanel buttonPanel=new JPanel();
  JSeparator separator=new JSeparator();
  Box buttonBox=new Box(BoxLayout.X_AXIS);
  statusBar=new StatusBar2();
  cardPanel=new JPanel();
  cardPanel.setBorder(new EmptyBorder(new Insets(5,10,5,10)));
  cardLayout=new CardLayout();
  cardPanel.setLayout(cardLayout);
  backButton=new JButton();
  nextButton=new JButton();
  cancelButton=new JButton();
  backButton.setActionCommand(BACK_BUTTON_ACTION_COMMAND);
  nextButton.setActionCommand(NEXT_BUTTON_ACTION_COMMAND);
  cancelButton.setActionCommand(CANCEL_BUTTON_ACTION_COMMAND);
  backButton.addActionListener(wizardController);
  nextButton.addActionListener(wizardController);
  cancelButton.addActionListener(wizardController);
  buttonPanel.setLayout(new BorderLayout());
  buttonPanel.add(separator,BorderLayout.NORTH);
  buttonBox.setBorder(new EmptyBorder(new Insets(5,10,5,10)));
  buttonBox.add(backButton);
  buttonBox.add(Box.createHorizontalStrut(10));
  buttonBox.add(nextButton);
  buttonBox.add(Box.createHorizontalStrut(30));
  buttonBox.add(cancelButton);
  buttonPanel.add(buttonBox,java.awt.BorderLayout.EAST);
  buttonPanel.add(statusBar,BorderLayout.WEST);
  Color color=UIManager.getColor("String_Node_Str");
  informationsField=new JTextPane();
  informationsField.setBackground(new Color(color.getRed(),color.getGreen(),color.getBlue()));
  informationsField.setOpaque(true);
  informationsField.setEditable(false);
  wizardDialog.getContentPane().add(buttonPanel,java.awt.BorderLayout.SOUTH);
  JPanel infoMainHolder=new JPanel();
  infoMainHolder.setLayout(new BorderLayout());
  infoMainHolder.add(informationsField,BorderLayout.SOUTH);
  infoMainHolder.add(cardPanel,BorderLayout.CENTER);
  wizardDialog.getContentPane().add(infoMainHolder,java.awt.BorderLayout.CENTER);
  leftPanel=new LeftPanel(0);
  wizardDialog.getContentPane().add(leftPanel,BorderLayout.WEST);
  TaskManager.getInstance().setDialog(wizardDialog);
  TaskManager.getInstance().setStatusBar(statusBar);
  RecentManager.getInstance().deserialize();
}

Fixed version (ground truth):
/** 
 * This method initializes the components for the wizard dialog: it creates a JFrame as a CardLayout panel surrounded by a small amount of space on each side, as well as three buttons at the bottom.
 */
private void initComponents(){
  wizardModel.addPropertyChangeListener(this);
  wizardController=new WizardController(this);
  wizardDialog.getContentPane().setLayout(new BorderLayout());
  wizardDialog.addWindowListener(this);
  JPanel buttonPanel=new JPanel();
  JSeparator separator=new JSeparator();
  Box buttonBox=new Box(BoxLayout.X_AXIS);
  statusBar=new StatusBar2();
  cardPanel=new JPanel();
  cardPanel.setBorder(new EmptyBorder(new Insets(5,10,5,10)));
  cardLayout=new CardLayout();
  cardPanel.setLayout(cardLayout);
  backButton=new JButton();
  nextButton=new JButton();
  cancelButton=new JButton();
  backButton.setActionCommand(BACK_BUTTON_ACTION_COMMAND);
  nextButton.setActionCommand(NEXT_BUTTON_ACTION_COMMAND);
  cancelButton.setActionCommand(CANCEL_BUTTON_ACTION_COMMAND);
  backButton.addActionListener(wizardController);
  nextButton.addActionListener(wizardController);
  cancelButton.addActionListener(wizardController);
  buttonPanel.setLayout(new BorderLayout());
  buttonPanel.add(separator,BorderLayout.NORTH);
  buttonBox.setBorder(new EmptyBorder(new Insets(5,10,5,10)));
  buttonBox.add(backButton);
  buttonBox.add(Box.createHorizontalStrut(10));
  buttonBox.add(nextButton);
  buttonBox.add(Box.createHorizontalStrut(30));
  buttonBox.add(cancelButton);
  buttonPanel.add(buttonBox,java.awt.BorderLayout.EAST);
  buttonPanel.add(statusBar,BorderLayout.WEST);
  Color color=UIManager.getColor("String_Node_Str");
  informationsField=new JTextPane();
  informationsField.setBackground(new Color(color.getRed(),color.getGreen(),color.getBlue()));
  informationsField.setOpaque(true);
  informationsField.setEditable(false);
  wizardDialog.getContentPane().add(buttonPanel,java.awt.BorderLayout.SOUTH);
  JPanel infoMainHolder=new JPanel();
  infoMainHolder.setLayout(new BorderLayout());
  infoMainHolder.add(informationsField,BorderLayout.SOUTH);
  infoMainHolder.add(cardPanel,BorderLayout.CENTER);
  wizardDialog.getContentPane().add(infoMainHolder,java.awt.BorderLayout.CENTER);
  leftPanel=new LeftPanel(0);
  wizardDialog.getContentPane().add(leftPanel,BorderLayout.WEST);
  TaskManager.getInstance().setDialog(wizardDialog);
  TaskManager.getInstance().setStatusBar(statusBar);
}