Program: 173769
Project: 173769
Buggy source:
public void actionPerformed(ActionEvent arg0){
  if (arg0.getSource().equals(newButton)) {
    startNewGame();
  }
 else   if (arg0.getSource().equals(optionButton)) {
    toggleOptions();
    this.pack();
  }
 else   if (arg0.getSource().equals(loadButton)) {
    String saveDirectory=Config.get("String_Node_Str");
    JFileChooser jfc=new JFileChooser();
    jfc.setCurrentDirectory(new File(saveDirectory));
    if (jfc.showOpenDialog(getContentPane()) == JFileChooser.APPROVE_OPTION) {
      File selectedFile=jfc.getSelectedFile();
      String filepath=selectedFile.getPath();
      saveDirectory=selectedFile.getParent();
      if ((game=Game.load(filepath)) == null) {
        JOptionPane.showMessageDialog(this,DisplayBuffer.get(),"String_Node_Str",JOptionPane.ERROR_MESSAGE);
        return;
      }
 else       if (DisplayBuffer.getSize() > 0) {
        JOptionPane.showMessageDialog(this,DisplayBuffer.get(),"String_Node_Str",JOptionPane.ERROR_MESSAGE);
      }
    }
    startGameUIManager(game);
    gameUIManager.setSaveDirectory(saveDirectory);
    gameUIManager.startLoadedGame();
    setVisible(false);
  }
 else   if (arg0.getSource().equals(infoButton)) {
    JOptionPane.showMessageDialog(this,GamesInfo.getDescription(gameName),"String_Node_Str" + gameName,JOptionPane.INFORMATION_MESSAGE);
  }
 else   if (arg0.getSource().equals(quitButton)) {
    System.exit(0);
  }
 else   if (arg0.getSource().equals(creditsButton)) {
    JOptionPane.showMessageDialog(this,GamesInfo.getCredits(),LocalText.getText("String_Node_Str"),JOptionPane.INFORMATION_MESSAGE);
  }
 else   if (arg0.getSource().equals(gameNameBox)) {
    gameName=gameNameBox.getSelectedItem().toString().split("String_Node_Str")[0];
    fillPlayersPane();
    if (optionsPane.isVisible()) {
      toggleOptions();
      toggleOptions();
    }
    this.pack();
  }
 else   if (arg0.getSource() instanceof JComboBox) {
    JComboBox comboBox=(JComboBox)arg0.getSource();
    String[] boxName=comboBox.getName().split("String_Node_Str");
    if (boxName[0].equalsIgnoreCase("String_Node_Str")) {
switch (comboBox.getSelectedIndex()) {
case NONE_PLAYER:
        playerNameFields[Integer.parseInt(boxName[1])].setText("String_Node_Str");
      playerNameFields[Integer.parseInt(boxName[1])].setEnabled(false);
    break;
case HUMAN_PLAYER:
  playerNameFields[Integer.parseInt(boxName[1])].setEnabled(true);
break;
case AI_PLAYER:
playerNameFields[Integer.parseInt(boxName[1])].setText("String_Node_Str");
playerNameFields[Integer.parseInt(boxName[1])].setEnabled(false);
break;
}
}
}
 else if (arg0.getSource().equals(randomizeButton)) {
if (playerNameFields.length > 0) {
List<String> playerList=new ArrayList<String>();
for (int i=0; i < playerNameFields.length; i++) {
if (playerNameFields[i] != null && playerNameFields[i].getText().length() > 0) {
playerList.add(playerNameFields[i].getText());
playerNameFields[i].setText("String_Node_Str");
}
}
Collections.shuffle(playerList);
for (int i=0; i < playerList.size(); i++) {
playerNameFields[i].setText(playerList.get(i));
}
}
fillPlayersPane();
}
}

Fixed version (ground truth):
public void actionPerformed(ActionEvent arg0){
  if (arg0.getSource().equals(newButton)) {
    startNewGame();
  }
 else   if (arg0.getSource().equals(optionButton)) {
    toggleOptions();
    this.pack();
  }
 else   if (arg0.getSource().equals(loadButton)) {
    String saveDirectory=Config.get("String_Node_Str");
    JFileChooser jfc=new JFileChooser();
    jfc.setCurrentDirectory(new File(saveDirectory));
    if (jfc.showOpenDialog(getContentPane()) == JFileChooser.APPROVE_OPTION) {
      File selectedFile=jfc.getSelectedFile();
      String filepath=selectedFile.getPath();
      saveDirectory=selectedFile.getParent();
      if ((game=Game.load(filepath)) == null) {
        JOptionPane.showMessageDialog(this,DisplayBuffer.get(),"String_Node_Str",JOptionPane.ERROR_MESSAGE);
        return;
      }
 else       if (DisplayBuffer.getSize() > 0) {
        JOptionPane.showMessageDialog(this,DisplayBuffer.get(),"String_Node_Str",JOptionPane.ERROR_MESSAGE);
      }
    }
    startGameUIManager(game);
    gameUIManager.setSaveDirectory(saveDirectory);
    gameUIManager.startLoadedGame();
    setVisible(false);
  }
 else   if (arg0.getSource().equals(infoButton)) {
    JOptionPane.showMessageDialog(this,GamesInfo.getDescription(gameName),"String_Node_Str" + gameName,JOptionPane.INFORMATION_MESSAGE);
  }
 else   if (arg0.getSource().equals(quitButton)) {
    System.exit(0);
  }
 else   if (arg0.getSource().equals(creditsButton)) {
    JOptionPane.showMessageDialog(this,GamesInfo.getCredits(),LocalText.getText("String_Node_Str"),JOptionPane.INFORMATION_MESSAGE);
  }
 else   if (arg0.getSource().equals(gameNameBox)) {
    gameName=gameNameBox.getSelectedItem().toString().split("String_Node_Str")[0];
    fillPlayersPane();
    if (optionsPane.isVisible()) {
      toggleOptions();
      toggleOptions();
    }
    this.pack();
  }
 else   if (arg0.getSource() instanceof JComboBox) {
    JComboBox comboBox=(JComboBox)arg0.getSource();
    String[] boxName=comboBox.getName().split("String_Node_Str");
    if (boxName[0].equalsIgnoreCase("String_Node_Str")) {
switch (comboBox.getSelectedIndex()) {
case NONE_PLAYER:
        playerNameFields[Integer.parseInt(boxName[1])].setText("String_Node_Str");
      playerNameFields[Integer.parseInt(boxName[1])].setEnabled(false);
    break;
case HUMAN_PLAYER:
  playerNameFields[Integer.parseInt(boxName[1])].setEnabled(true);
break;
case AI_PLAYER:
playerNameFields[Integer.parseInt(boxName[1])].setText("String_Node_Str");
playerNameFields[Integer.parseInt(boxName[1])].setEnabled(false);
break;
}
}
}
 else if (arg0.getSource().equals(randomizeButton)) {
if (playerNameFields.length > 0) {
List<String> playerList=new ArrayList<String>();
for (int i=0; i < playerNameFields.length; i++) {
if (playerNameFields[i] != null && playerNameFields[i].getText().length() > 0) {
playerList.add(playerNameFields[i].getText());
playerNameFields[i].setText("String_Node_Str");
}
}
Collections.shuffle(playerList);
for (int i=0; i < playerList.size(); i++) {
playerNameFields[i].setText(playerList.get(i));
}
}
}
}