Program: 173868
Project: 173868
Buggy source:
public void actionPerformed(ActionEvent actor){
  int returnVal=0;
  player=GameManager.getCurrentPlayer();
  if (actor.getActionCommand().equalsIgnoreCase("String_Node_Str")) {
    buyButtonClicked();
    passButton.setText("String_Node_Str");
    passButton.setMnemonic(KeyEvent.VK_D);
  }
 else   if (actor.getActionCommand().equalsIgnoreCase("String_Node_Str")) {
    sellButtonClicked();
    passButton.setText("String_Node_Str");
    passButton.setMnemonic(KeyEvent.VK_D);
  }
 else   if (actor.getActionCommand().equalsIgnoreCase("String_Node_Str")) {
    stockRound.done(gameStatus.getSRPlayer());
    passButton.setText("String_Node_Str");
    passButton.setMnemonic(KeyEvent.VK_P);
  }
  try {
    JMenuItem menuItem=(JMenuItem)actor.getSource();
    if (menuItem.getText().equalsIgnoreCase("String_Node_Str"))     System.exit(0);
    if (menuItem.getText().equalsIgnoreCase("String_Node_Str"))     returnVal=new JFileChooser().showSaveDialog(this);
    if (menuItem.getText().equalsIgnoreCase("String_Node_Str") && menuItem.isSelected())     GameUILoader.messageWindow.setVisible(true);
 else     if (menuItem.getText().equalsIgnoreCase("String_Node_Str") && !menuItem.isSelected())     GameUILoader.messageWindow.setVisible(false);
    if (menuItem.getText().equalsIgnoreCase("String_Node_Str") && menuItem.isSelected())     GameUILoader.stockChart.setVisible(true);
 else     if (menuItem.getText().equalsIgnoreCase("String_Node_Str") && !menuItem.isSelected())     GameUILoader.stockChart.setVisible(false);
    if (menuItem.getText().equalsIgnoreCase("String_Node_Str") && menuItem.isSelected())     orWindow=new ORWindow(null,this);
 else     if (menuItem.getText().equalsIgnoreCase("String_Node_Str") && !menuItem.isSelected()) {
      orWindow.dispose();
      orWindow=null;
    }
  }
 catch (  ClassCastException e) {
  }
  LogWindow.addLog();
  pack();
  currentRound=GameManager.getInstance().getCurrentRound();
  if (currentRound instanceof StockRound)   gameStatus.setSRPlayerTurn(GameManager.getCurrentPlayerIndex());
 else   if (currentRound instanceof OperatingRound) {
    gameStatus.setSRPlayerTurn(-1);
    updateStatus();
  }
}

Fixed version (ground truth):
public void actionPerformed(ActionEvent actor){
  int returnVal=0;
  player=GameManager.getCurrentPlayer();
  if (actor.getActionCommand().equalsIgnoreCase(BUY)) {
    buyButtonClicked();
    passButton.setText(DONE);
    passButton.setMnemonic(KeyEvent.VK_D);
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(SELL)) {
    sellButtonClicked();
    passButton.setText(DONE);
    passButton.setMnemonic(KeyEvent.VK_D);
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(DONE)) {
    stockRound.done(gameStatus.getSRPlayer());
    passButton.setText(PASS);
    passButton.setMnemonic(KeyEvent.VK_P);
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(QUIT))   System.exit(0);
 else   if (actor.getActionCommand().equalsIgnoreCase(SAVE))   returnVal=new JFileChooser().showSaveDialog(this);
 else   if (actor.getActionCommand().equalsIgnoreCase(LOG) && ((JMenuItem)actor.getSource()).isSelected()) {
    GameUILoader.messageWindow.setVisible(true);
    return;
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(LOG) && !((JMenuItem)actor.getSource()).isSelected()) {
    GameUILoader.messageWindow.setVisible(false);
    return;
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(MARKET) && ((JMenuItem)actor.getSource()).isSelected()) {
    GameUILoader.stockChart.setVisible(true);
    return;
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(MARKET) && !((JMenuItem)actor.getSource()).isSelected()) {
    GameUILoader.stockChart.setVisible(false);
    return;
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(MAP) && ((JMenuItem)actor.getSource()).isSelected()) {
    orWindow=new ORWindow(null,this);
    return;
  }
 else   if (actor.getActionCommand().equalsIgnoreCase(MAP) && !((JMenuItem)actor.getSource()).isSelected()) {
    orWindow.dispose();
    orWindow=null;
    return;
  }
  LogWindow.addLog();
  pack();
  currentRound=GameManager.getInstance().getCurrentRound();
  if (currentRound instanceof StockRound)   gameStatus.setSRPlayerTurn(GameManager.getCurrentPlayerIndex());
 else   if (currentRound instanceof OperatingRound) {
    gameStatus.setSRPlayerTurn(-1);
    updateStatus();
  }
}