Program: 21411
Project: 21411
Buggy source:
public void actionPerformed(ActionEvent e){
  if (e.getSource() == openHome) {
    try {
      logger.info("String_Node_Str");
      JDUtilities.runCommand("String_Node_Str",new String[]{new File(downloadLinks.elementAt(0).getFileOutput()).getParent()},null,0);
    }
 catch (    Exception ec) {
    }
  }
  if (e.getSource() == delete) {
    removeSelectedLinks();
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,null));
  }
  if (e.getSource() == enable) {
    boolean status=downloadLinks.elementAt(0).isEnabled();
    for (int i=0; i < downloadLinks.size(); i++) {
      downloadLinks.elementAt(i).setEnabled(!status);
    }
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,null));
  }
  if (e.getSource() == info) {
    new DownloadInfo(parent.getFrame(),downloadLinks.elementAt(0));
  }
  if (e.getSource() == loadinfo) {
    Vector<DownloadLink> selectedDownloadLinks=getSelectedObjects();
    logger.info("String_Node_Str" + selectedDownloadLinks.size());
    logger.info(selectedDownloadLinks + "String_Node_Str");
    for (int i=0; i < selectedDownloadLinks.size(); i++) {
      DownloadLink link=selectedDownloadLinks.elementAt(i);
      link.isAvailable();
      fireTableChanged();
      try {
        Thread.sleep(20);
      }
 catch (      InterruptedException e2) {
      }
    }
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,null));
  }
  if (e.getSource() == top) {
    moveSelectedItems(JDAction.ITEMS_MOVE_TOP);
  }
  if (e.getSource() == bottom) {
    moveSelectedItems(JDAction.ITEMS_MOVE_BOTTOM);
  }
  if (e.getSource() == reset) {
    for (int i=0; i < downloadLinks.size(); i++) {
      if (!downloadLinks.elementAt(i).isInProgress()) {
        downloadLinks.elementAt(i).setStatus(DownloadLink.STATUS_TODO);
        downloadLinks.elementAt(i).setStatusText("String_Node_Str");
        downloadLinks.elementAt(i).reset();
      }
    }
    fireTableChanged();
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,null));
  }
}

Fixed version (ground truth):
public void actionPerformed(ActionEvent e){
  if (e.getSource() == openHome) {
    try {
      logger.info("String_Node_Str");
      JDUtilities.runCommand("String_Node_Str",new String[]{new File(downloadLinks.elementAt(0).getFileOutput()).getParent()},null,0);
    }
 catch (    Exception ec) {
    }
  }
  if (e.getSource() == delete) {
    removeSelectedLinks();
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,parent.getDownloadLinks()));
  }
  if (e.getSource() == enable) {
    boolean status=downloadLinks.elementAt(0).isEnabled();
    for (int i=0; i < downloadLinks.size(); i++) {
      downloadLinks.elementAt(i).setEnabled(!status);
    }
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,parent.getDownloadLinks()));
  }
  if (e.getSource() == info) {
    new DownloadInfo(parent.getFrame(),downloadLinks.elementAt(0));
  }
  if (e.getSource() == loadinfo) {
    Vector<DownloadLink> selectedDownloadLinks=getSelectedObjects();
    logger.info("String_Node_Str" + selectedDownloadLinks.size());
    logger.info(selectedDownloadLinks + "String_Node_Str");
    for (int i=0; i < selectedDownloadLinks.size(); i++) {
      DownloadLink link=selectedDownloadLinks.elementAt(i);
      link.isAvailable();
      fireTableChanged();
      try {
        Thread.sleep(20);
      }
 catch (      InterruptedException e2) {
      }
    }
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,parent.getDownloadLinks()));
  }
  if (e.getSource() == top) {
    moveSelectedItems(JDAction.ITEMS_MOVE_TOP);
  }
  if (e.getSource() == bottom) {
    moveSelectedItems(JDAction.ITEMS_MOVE_BOTTOM);
  }
  if (e.getSource() == reset) {
    for (int i=0; i < downloadLinks.size(); i++) {
      if (!downloadLinks.elementAt(i).isInProgress()) {
        downloadLinks.elementAt(i).setStatus(DownloadLink.STATUS_TODO);
        downloadLinks.elementAt(i).setStatusText("String_Node_Str");
        downloadLinks.elementAt(i).reset();
      }
    }
    fireTableChanged();
    parent.fireUIEvent(new UIEvent(parent,UIEvent.UI_LINKS_CHANGED,parent.getDownloadLinks()));
  }
}