I’m sending a JSON object of the same class from a servlet to an

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Asked: June 17, 20262026-06-17T06:50:20+00:00 2026-06-17T06:50:20+00:00

I’m sending a JSON object of the same class from a servlet to an

0

I’m sending a JSON object of the same class from a servlet to an applet, but
all strings variables in this class are missing some characters like: ‘ą’, ‘ę’, ‘ś’, ‘ń’, ‘ł’.
However, ‘ó’ is displayed normally (?). For example:
“Zaznacz prawid?ow? operacj? porównywania dwóch zmiennych typu”

Solution
I wish I could explain it more thoroughly, but as Henry noticed, it’s IDE causing this issue. I solved it using farmer1992’s class from the google ticket. It prints escaped unicode characters (\u…) – the only way my applet could encode characters correctly. Also I have to restart NetBeans IDE from time to time to force the Tomcat servlet to work correctly (I have no idea why 🙂 ).

Servlet code (updated with solution):

//begin of the servlet code extract
public void sendToApplet(HttpServletResponse response, String path) throws IOException
{
    TestServlet x = new TestServlet();
    x.load(path);

    String json = new Gson().toJson(x);
    response.setCharacterEncoding("UTF-8");
    response.setContentType("application/json;charset=UTF-8");

    PrintWriter out = response.getWriter();
    //out.print(json);
    //out.flush();
    GhettoAsciiWriter out2 = new GhettoAsciiWriter(out);
    out2.write(json);
    out2.flush();

}
//end of the servlet code extract

Applet code:

//begin of the applet code extract
public void retrieveFromServlet(String path) throws MalformedURLException, IOException
{
    String encoder = URLEncoder.encode(path, "UTF-8");
    URL urlServlet = new URL("http://localhost:8080/ProjektServlet?action=" + encoder);
    URLConnection connection = urlServlet.openConnection();
    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setUseCaches(false);
    connection.setRequestProperty("Content-Type", "application/json;charset=UTF-8");

    InputStream inputStream = connection.getInputStream();
    BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
    String json = br.readLine();
    Test y = new Gson().fromJson(json, Test.class);
    inputStream.close();
}
//end of the applet code extract