Program: 42738
Project: 42738
Buggy source:
public JettyServer() throws Exception {
  System.out.println(System.getProperty("String_Node_Str"));
  server=new Server(8080);
  ClientUpdater cu=new ClientUpdater();
  ResourceHandler res=new ResourceHandler();
  res.setDirectoriesListed(true);
  res.setWelcomeFiles(new String[]{"String_Node_Str"});
  res.setResourceBase("String_Node_Str");
  WebSocketHandler wsHandler=new WebSocketHandler(){
    @Override public void configure(    WebSocketServletFactory factory){
      factory.register(WSHandler.class);
    }
  }
;
  GzipHandler gzip=new GzipHandler();
  HandlerList handlers=new HandlerList();
  handlers.setHandlers(new Handler[]{wsHandler,res,new DefaultHandler()});
  gzip.setHandler(handlers);
  ContextHandler contextRoot=new ContextHandler("String_Node_Str");
  contextRoot.setHandler(gzip);
  RootHandler help=new RootHandler();
  ContextHandler contextHelp=new ContextHandler("String_Node_Str");
  contextHelp.setHandler(help);
  ResourceHandler res1=new ResourceHandler();
  res1.setWelcomeFiles(new String[]{"String_Node_Str"});
  res1.setResourceBase("String_Node_Str");
  ContextHandler contextTest=new ContextHandler("String_Node_Str");
  contextTest.setHandler(res1);
  ResourceHandler res11=new ResourceHandler();
  res11.setWelcomeFiles(new String[]{"String_Node_Str","String_Node_Str"});
  res11.setResourceBase("String_Node_Str");
  ContextHandler contextTest1=new ContextHandler("String_Node_Str");
  contextTest1.setHandler(res11);
  ContextHandlerCollection contexts=new ContextHandlerCollection();
  contexts.setHandlers(new Handler[]{contextRoot,contextHelp,contextTest,contextTest1,new DefaultHandler()});
  server.setHandler(contexts);
  serverThread=new Thread(){
    public void run(){
      try {
        server.start();
        server.join();
      }
 catch (      Exception e) {
        e.printStackTrace();
      }
    }
  }
;
  serverThread.start();
}

Fixed version (ground truth):
/** 
 * initializes the jetty server
 */
public JettyServer(){
  System.out.println(System.getProperty("String_Node_Str"));
  server=new Server(8080);
  new ClientUpdater();
  ResourceHandler res=new ResourceHandler();
  res.setDirectoriesListed(true);
  res.setWelcomeFiles(new String[]{"String_Node_Str"});
  res.setResourceBase("String_Node_Str");
  WebSocketHandler wsHandler=new WebSocketHandler(){
    @Override public void configure(    WebSocketServletFactory factory){
      factory.register(WSHandler.class);
    }
  }
;
  GzipHandler gzip=new GzipHandler();
  HandlerList handlers=new HandlerList();
  handlers.setHandlers(new Handler[]{wsHandler,res,new DefaultHandler()});
  gzip.setHandler(handlers);
  ContextHandler contextRoot=new ContextHandler("String_Node_Str");
  contextRoot.setHandler(gzip);
  RootHandler help=new RootHandler();
  ContextHandler contextHelp=new ContextHandler("String_Node_Str");
  contextHelp.setHandler(help);
  ResourceHandler res1=new ResourceHandler();
  res1.setWelcomeFiles(new String[]{"String_Node_Str"});
  res1.setResourceBase("String_Node_Str");
  ContextHandler contextTest=new ContextHandler("String_Node_Str");
  contextTest.setHandler(res1);
  ResourceHandler res11=new ResourceHandler();
  res11.setWelcomeFiles(new String[]{"String_Node_Str","String_Node_Str"});
  res11.setResourceBase("String_Node_Str");
  ContextHandler contextTest1=new ContextHandler("String_Node_Str");
  contextTest1.setHandler(res11);
  ContextHandlerCollection contexts=new ContextHandlerCollection();
  contexts.setHandlers(new Handler[]{contextRoot,contextHelp,contextTest,contextTest1,new DefaultHandler()});
  server.setHandler(contexts);
  serverThread=new Thread(){
    public void run(){
      try {
        server.start();
        server.join();
      }
 catch (      Exception e) {
        e.printStackTrace();
      }
    }
  }
;
  serverThread.start();
}