return (type);
return type;
  public String getContentTypeFor(String filename)  {		int index = filename.lastIndexOf(".");    if (index != -1)      {			if (index == filename.length())				return ("application/octet-stream");			else				filename = filename.substring(index + 1);		}		String type = (String) mime_types.get(filename);		if (type == null)			return ("application/octet-stream");		else			return (type);	}