output: #fixed code
                                  public void run() throws Exception {
          TChannel tchannel = new TChannel.Builder("ping-server")
                  .register("ping", new PingRequestHandler())
                  .setServerPort(this.port)
                  .build();
  
          tchannel.listen().channel().closeFuture().sync();
      }
input: #vulnerable code 
                                  public void run() throws Exception {
          TChannel tchannel = new TChannel.Builder("ping-server")
                  .register("ping", new PingRequestHandler())
                  .setPort(this.port)
                  .build();
  
          tchannel.listen().channel().closeFuture().sync();
      } 
                              #location 7 
                              #vulnerability type RESOURCE_LEAK