Program: 81661
Project: 81661
Buggy source:
protected Void doInBackground() throws Exception {
  EgDownloaderWindow window=(EgDownloaderWindow)mainWindow;
  if (window.creatingWindow == null) {
    window.creatingWindow=new CreatingWindow(mainWindow);
  }
  window.creatingWindow.setVisible(true);
  Setting setting=window.setting;
  InputStream is=null;
  try {
    task=ParseEngine.buildTask_new(task,setting,window.creatingWindow);
    if (task != null && task.getPictures() != null) {
      if (task.getCoverUrl() == null) {
        is=WebClient.getStreamUseJava(task.getCoverUrl());
        FileUtil.storeStream(task.getSaveDir(),"String_Node_Str",is);
      }
      window.pictureDbTemplate.store(task.getPictures());
      TaskingTable taskTable=(TaskingTable)window.runningTable;
      ((CreatingWindow)(window.creatingWindow)).reset();
      window.creatingWindow.dispose();
      window.tablePane.setVisible(true);
      taskTable.updateUI();
      window.setEnabled(true);
      window.setVisible(true);
      int maxThread=setting.getMaxThread();
      TaskingTable table=(TaskingTable)window.runningTable;
      if (table.getRunningNum() >= maxThread) {
        table.addWaitingTask(task);
        return null;
      }
      table.startTask(task);
    }
 else {
      window.creatingWindow.dispose();
      JOptionPane.showMessageDialog(null,"String_Node_Str");
    }
  }
 catch (  SocketTimeoutException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,"String_Node_Str");
  }
catch (  ConnectTimeoutException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,"String_Node_Str");
  }
catch (  SpiderException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,e.getMessage());
  }
catch (  WebClientException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,e.getMessage());
  }
 finally {
    if (is != null) {
      is.close();
    }
  }
  return null;
}

Fixed version (ground truth):
protected Void doInBackground() throws Exception {
  EgDownloaderWindow window=(EgDownloaderWindow)mainWindow;
  if (window.creatingWindow == null) {
    window.creatingWindow=new CreatingWindow(mainWindow);
  }
  window.creatingWindow.setVisible(true);
  Setting setting=window.setting;
  InputStream is=null;
  try {
    task=ParseEngine.buildTask_new(task,setting,window.creatingWindow);
    if (task != null && task.getPictures() != null) {
      if (task.getCoverUrl() == null) {
        is=WebClient.getStreamUseJava(task.getCoverUrl());
        FileUtil.storeStream(task.getSaveDir(),"String_Node_Str",is);
      }
      window.pictureDbTemplate.store(task.getPictures());
      TaskingTable taskTable=(TaskingTable)window.runningTable;
      ((CreatingWindow)(window.creatingWindow)).reset();
      window.creatingWindow.dispose();
      window.tablePane.setVisible(true);
      taskTable.updateUI();
      window.setEnabled(true);
      window.setVisible(true);
      TaskingTable table=(TaskingTable)window.runningTable;
      table.startTask(task);
    }
 else {
      window.creatingWindow.dispose();
      JOptionPane.showMessageDialog(null,"String_Node_Str");
    }
  }
 catch (  SocketTimeoutException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,"String_Node_Str");
  }
catch (  ConnectTimeoutException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,"String_Node_Str");
  }
catch (  SpiderException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,e.getMessage());
  }
catch (  WebClientException e) {
    ((CreatingWindow)(window.creatingWindow)).reset();
    window.creatingWindow.dispose();
    JOptionPane.showMessageDialog(null,e.getMessage());
  }
 finally {
    if (is != null) {
      is.close();
    }
  }
  return null;
}