Program: 11051
Project: 11051
Buggy source:
/** 
 * Attempt to open a   {@link Theme} from the given url, and notify the givendelegate when complete.
 * @param url Theme url
 * @param delegate Delegate to notify
 */
public static void openTheme(final URL url,final ThemeOpenDelegate delegate){
  if (url == null) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  final ProgressMonitor progress=new IndeterminateProgressMonitor(null,"String_Node_Str",null);
  progress.setMillisToDecideToPopup(0);
  progress.setMillisToPopup(0);
  final ThemeOpenDelegate innerDelegate=new ThemeOpenDelegate(){
    @Override public void opened(    Theme theme,    Element themeElement,    URL themeUrl){
      delegate.opened(theme,themeElement,themeUrl);
    }
  }
;
  Runnable runnable=new Runnable(){
    @Override public void run(){
      try {
        RetrievalResult result=Downloader.downloadImmediatelyIfModified(url,true);
        if (progress.isCanceled()) {
          return;
        }
        InputStream is=result.getAsInputStream();
        Element element=XMLUtil.getElementFromSource(is);
        Theme theme=ThemeFactory.createFromXML(element,url);
        if (theme == null) {
          throw new Exception("String_Node_Str");
        }
        progress.close();
        innerDelegate.opened(theme,element,url);
      }
 catch (      Exception e) {
        progress.close();
        int response=(e instanceof HttpException) ? ((HttpException)e).getResponseCode() : -1;
        boolean forbidden=response == 403 || response == 407;
        String message="String_Node_Str" + url + "String_Node_Str"+ e.getLocalizedMessage()+ "String_Node_Str"+ (forbidden ? "String_Node_Str" : "String_Node_Str");
        JOptionPane.showMessageDialog(null,message,"String_Node_Str",JOptionPane.ERROR_MESSAGE);
        openDefault(innerDelegate);
      }
    }
  }
;
  Thread thread=new Thread(runnable);
  thread.start();
}

Fixed version (ground truth):
/** 
 * Attempt to open a   {@link Theme} from the given url, and notify the givendelegate when complete.
 * @param url Theme url
 * @param delegate Delegate to notify
 */
public static void openTheme(final URL url,final ThemeOpenDelegate delegate){
  if (url == null) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  boolean file="String_Node_Str".equalsIgnoreCase(url.getProtocol());
  final ProgressMonitor progress=new IndeterminateProgressMonitor(null,file ? "String_Node_Str" : "String_Node_Str",null);
  progress.setMillisToDecideToPopup(0);
  progress.setMillisToPopup(0);
  final ThemeOpenDelegate innerDelegate=new ThemeOpenDelegate(){
    @Override public void opened(    Theme theme,    Element themeElement,    URL themeUrl){
      delegate.opened(theme,themeElement,themeUrl);
    }
  }
;
  Runnable runnable=new Runnable(){
    @Override public void run(){
      try {
        RetrievalResult result=Downloader.downloadImmediatelyIfModified(url,true);
        if (progress.isCanceled()) {
          return;
        }
        InputStream is=result.getAsInputStream();
        Element element=XMLUtil.getElementFromSource(is);
        Theme theme=ThemeFactory.createFromXML(element,url);
        if (theme == null) {
          throw new Exception("String_Node_Str");
        }
        progress.close();
        innerDelegate.opened(theme,element,url);
      }
 catch (      Exception e) {
        progress.close();
        int response=(e instanceof HttpException) ? ((HttpException)e).getResponseCode() : -1;
        boolean forbidden=response == 403 || response == 407;
        String message="String_Node_Str" + url + "String_Node_Str"+ e.getLocalizedMessage()+ "String_Node_Str"+ (forbidden ? "String_Node_Str" : "String_Node_Str");
        JOptionPane.showMessageDialog(null,message,"String_Node_Str",JOptionPane.ERROR_MESSAGE);
        openDefault(innerDelegate);
      }
    }
  }
;
  Thread thread=new Thread(runnable);
  thread.start();
}