HttpURLConnection disconnect doesn't work in Android

The method disconnect from HttpURLConnection seems not to work properly. If I execute the following code:

url = new URL("http:// ...");
connection = (HttpURLConnection) url.openConnection ();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencod开发者_高级运维ed");
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
connection.connect();
// Some code
connection.disconnect();
connection.setDoInput(false); // -> IllegalStateException

I get an IllegalStateException when I call the method setDoInput. The exception says:

Already connected

It sounds like you're trying to reuse the connection? i.e. altering the request properties after you've disconnected from the server, ready to make another connection.

If that is the case, then just create a new HttpURLConnection object.