Program: 21204
Project: 21204
Buggy source:
private void initGUI(){
  buildMenu();
  sortPackages=new JButton(JDLocale.L("String_Node_Str","String_Node_Str"));
  sortPackages.addActionListener(this);
  acceptAll=new JButton(JDLocale.L("String_Node_Str","String_Node_Str"));
  acceptAll.addActionListener(this);
  accept=new JButton(JDLocale.L("String_Node_Str","String_Node_Str"));
  accept.addActionListener(this);
  insertAtPosition=new JComboBox(new String[]{JDLocale.L("String_Node_Str","String_Node_Str"),JDLocale.L("String_Node_Str","String_Node_Str")});
  insertAtPosition.setSelectedIndex(guiConfig.getIntegerProperty(PROPERTY_POSITION,1));
  insertAtPosition.addActionListener(this);
  progress=new JProgressBar();
  progress.setBorder(BorderFactory.createEtchedBorder());
  progress.setString(JDLocale.L("String_Node_Str","String_Node_Str"));
  progress.setStringPainted(true);
  tabbedPane=new JTabbedPane();
  tabbedPane.addChangeListener(this);
  tabbedPane.addMouseListener(this);
  tabbedPane.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
  tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
  tabbedPane.setTabPlacement(JTabbedPane.LEFT);
  if (System.getProperty("String_Node_Str").toLowerCase().indexOf("String_Node_Str") >= 0) {
    logger.finer("String_Node_Str" + System.getProperty("String_Node_Str") + "String_Node_Str");
    tabbedPane.setTabPlacement(JTabbedPane.TOP);
  }
  new DropTarget(tabbedPane,this);
  setName("String_Node_Str");
  this.addWindowListener(this);
  this.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
  int n=7;
  JPanel panel=new JPanel(new BorderLayout(n,n));
  panel.setBorder(new EmptyBorder(n,n,n,n));
  setContentPane(panel);
  JPanel inner=new JPanel(new BorderLayout(n,n));
  JPanel south=new JPanel(new BorderLayout(n,n));
  JPanel bpanel=new JPanel(new FlowLayout(FlowLayout.RIGHT,n,0));
  south.add(sortPackages,BorderLayout.WEST);
  bpanel.add(new JLabel(JDLocale.L("String_Node_Str","String_Node_Str")));
  bpanel.add(insertAtPosition);
  JSeparator separator=new JSeparator(SwingConstants.VERTICAL);
  separator.setPreferredSize(new Dimension(5,20));
  bpanel.add(separator);
  bpanel.add(acceptAll);
  bpanel.add(accept);
  south.add(bpanel,BorderLayout.CENTER);
  panel.add(inner,BorderLayout.CENTER);
  inner.add(tabbedPane,BorderLayout.CENTER);
  inner.add(progress,BorderLayout.SOUTH);
  panel.add(south,BorderLayout.SOUTH);
  getRootPane().setDefaultButton(acceptAll);
  setPreferredSize(new Dimension(640,480));
  setLocationRelativeTo(null);
  pack();
  setVisible(true);
}

Fixed version (ground truth):
private void initGUI(){
  buildMenu();
  sortPackages=new JButton(JDLocale.L("String_Node_Str","String_Node_Str"));
  sortPackages.addActionListener(this);
  acceptAll=new JButton(JDLocale.L("String_Node_Str","String_Node_Str"));
  acceptAll.addActionListener(this);
  accept=new JButton(JDLocale.L("String_Node_Str","String_Node_Str"));
  accept.addActionListener(this);
  insertAtPosition=new JComboBox(new String[]{JDLocale.L("String_Node_Str","String_Node_Str"),JDLocale.L("String_Node_Str","String_Node_Str")});
  insertAtPosition.setSelectedIndex(guiConfig.getIntegerProperty(PROPERTY_POSITION,1));
  insertAtPosition.addActionListener(this);
  progress=new JProgressBar();
  progress.setBorder(BorderFactory.createEtchedBorder());
  progress.setString(JDLocale.L("String_Node_Str","String_Node_Str"));
  progress.setStringPainted(true);
  tabbedPane=new JTabbedPane();
  tabbedPane.addChangeListener(this);
  tabbedPane.addMouseListener(this);
  tabbedPane.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
  tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
  tabbedPane.setTabPlacement(JTabbedPane.LEFT);
  if (System.getProperty("String_Node_Str").toLowerCase().indexOf("String_Node_Str") >= 0) {
    logger.finer("String_Node_Str" + System.getProperty("String_Node_Str") + "String_Node_Str");
    tabbedPane.setTabPlacement(JTabbedPane.TOP);
  }
  new DropTarget(tabbedPane,this);
  setName("String_Node_Str");
  this.addWindowListener(this);
  this.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
  int n=7;
  JPanel panel=new JPanel(new BorderLayout(n,n));
  panel.setBorder(new EmptyBorder(n,n,n,n));
  setContentPane(panel);
  JPanel inner=new JPanel(new BorderLayout(n,n));
  JPanel south=new JPanel(new BorderLayout(n,n));
  JPanel bpanel=new JPanel(new FlowLayout(FlowLayout.RIGHT,n,0));
  south.add(sortPackages,BorderLayout.WEST);
  bpanel.add(new JLabel(JDLocale.L("String_Node_Str","String_Node_Str")));
  bpanel.add(insertAtPosition);
  JSeparator separator=new JSeparator(SwingConstants.VERTICAL);
  separator.setPreferredSize(new Dimension(5,20));
  bpanel.add(separator);
  bpanel.add(acceptAll);
  bpanel.add(accept);
  south.add(bpanel,BorderLayout.CENTER);
  panel.add(inner,BorderLayout.CENTER);
  inner.add(tabbedPane,BorderLayout.CENTER);
  inner.add(progress,BorderLayout.SOUTH);
  panel.add(south,BorderLayout.SOUTH);
  getRootPane().setDefaultButton(acceptAll);
  setPreferredSize(new Dimension(640,480));
  setLocationRelativeTo(null);
  pack();
}