Frida http post request from java/android

httpPostRequest.js

function javaPost(url, data) {
    const thread = Java.use("java.lang.Thread").$new();
    const Tjava = Java.ClassFactory.get(thread.getContextClassLoader());
    const Url = Tjava.use("java.net.URL").$new(url);
    let connection = Url.openConnection();
    connection = Java.cast(connection, Tjava.use("java.net.HttpURLConnection"));
    connection.setRequestMethod("POST");
    connection.setDoOutput(true);
    connection.setRequestProperty("Content-Type", "application/json;");
    const postData = Tjava.use("java.lang.String").$new(data);
    connection.getOutputStream().write(postData.getBytes());
    const stream = connection.getInputStream();
    const utf8 = Tjava.use("java.nio.charset.StandardCharsets").UTF_8.value;
    const isreader = Tjava.use("java.io.InputStreamReader").$new(stream, utf8);
    const bufReader = Tjava.use("java.io.BufferedReader").$new(isreader);
    const res = bufReader.lines().collect(Tjava.use("java.util.stream.Collectors").joining(Tjava.use("java.lang.String").$new("\n")));
    return res;
}
console.log(javaPost("http://example.com", "hi"));