code: @Override
    public void closeWrite() throws IOException
    {
      if (_isCloseWrite) {
        return;
      }
      
      _isCloseWrite = true;
      
      //OutputStream os = _os;
      //_os = null;
      
      boolean isShutdownOutput = false;
  
      // since the output stream is opened lazily, we might
      // need to open it
      if (_s != null) {
        try {
          _s.shutdownOutput();
          
          isShutdownOutput = true;
        } catch (UnsupportedOperationException e) {
          log.log(Level.FINEST, e.toString(), e);
        } catch (Exception e) {
          log.finer(e.toString());
          log.log(Level.FINEST, e.toString(), e);
        }
      }
  
      /*
      // SSLSocket doesn't support shutdownOutput()
      if (! isShutdownOutput && os != null) {
        os.close();
      }
      */
    }
docs: Closes the write half of the stream.