Program: 145741
Project: 145741
Buggy source:
public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
  SnipSpace space=SnipSpaceFactory.getInstance();
  String eTag=request.getHeader("String_Node_Str");
  if (null != eTag && eTag.equals(space.getETag())) {
    response.setHeader("String_Node_Str",space.getETag());
    response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
    return;
  }
 else {
    String version=request.getParameter("String_Node_Str");
    String type=request.getParameter("String_Node_Str");
    String sourceSnipName=request.getParameter("String_Node_Str");
    if (null == sourceSnipName) {
      sourceSnipName=config.getStartSnip();
    }
    Snip sourceSnip=space.load(sourceSnipName);
    Object object=Components.getComponent(PlainTextRenderEngine.class);
    System.err.println("String_Node_Str" + object.getClass());
    FeederRepository repository=(FeederRepository)Components.getComponent(FeederRepository.class);
    Feeder feeder=(Feeder)repository.get(type);
    if (null == feeder || "String_Node_Str".equals(feeder.getName())) {
      if (sourceSnip.isWeblog()) {
        feeder=new BlogFeeder(sourceSnipName);
      }
 else {
        feeder=new BlogFeeder();
      }
    }
    Snip snip=feeder.getContextSnip();
    request.setAttribute("String_Node_Str",snip);
    request.setAttribute("String_Node_Str",feeder.getFeed());
    request.setAttribute("String_Node_Str",space);
    request.setAttribute("String_Node_Str",config);
    request.setAttribute("String_Node_Str",config.getUrl("String_Node_Str"));
    RequestDispatcher dispatcher;
    if ("String_Node_Str".equals(version)) {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
 else     if ("String_Node_Str".equals(version)) {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
 else     if ("String_Node_Str".equals(version)) {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
 else {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
    dispatcher.forward(request,response);
  }
}

Fixed version (ground truth):
public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
  SnipSpace space=SnipSpaceFactory.getInstance();
  Configuration config=Application.get().getConfiguration();
  String eTag=request.getHeader("String_Node_Str");
  if (null != eTag && eTag.equals(space.getETag())) {
    response.setHeader("String_Node_Str",space.getETag());
    response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
    return;
  }
 else {
    String version=request.getParameter("String_Node_Str");
    String type=request.getParameter("String_Node_Str");
    String sourceSnipName=request.getParameter("String_Node_Str");
    if (null == sourceSnipName) {
      sourceSnipName=config.getStartSnip();
    }
    Snip sourceSnip=space.load(sourceSnipName);
    Object object=Components.getComponent(PlainTextRenderEngine.class);
    System.err.println("String_Node_Str" + object.getClass());
    FeederRepository repository=(FeederRepository)Components.getComponent(FeederRepository.class);
    Feeder feeder=(Feeder)repository.get(type);
    if (null == feeder || "String_Node_Str".equals(feeder.getName())) {
      if (sourceSnip.isWeblog()) {
        feeder=new BlogFeeder(sourceSnipName);
      }
 else {
        feeder=new BlogFeeder();
      }
    }
    Snip snip=feeder.getContextSnip();
    request.setAttribute("String_Node_Str",snip);
    request.setAttribute("String_Node_Str",feeder.getFeed());
    request.setAttribute("String_Node_Str",space);
    request.setAttribute("String_Node_Str",config);
    request.setAttribute("String_Node_Str",config.getUrl("String_Node_Str"));
    RequestDispatcher dispatcher;
    if ("String_Node_Str".equals(version)) {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
 else     if ("String_Node_Str".equals(version)) {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
 else     if ("String_Node_Str".equals(version)) {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
 else {
      dispatcher=request.getRequestDispatcher("String_Node_Str");
    }
    dispatcher.forward(request,response);
  }
}