java.io.IOException: Received authentication challenge is null in ICS 4.0.3

Question

I\'m trying to logoff from the server. But it returns \"0\" response code with this exception. I\'m using GET verb to do this.

LogCat

10-17 14         


        

Answer 1

You can get the response code after an exception if you call .getResponseCode() a second time on the connection object. This is because the first time you call .getResponseCode() an internal state is set that enables .getResponseCode() to return without throwing an exception.

Example:

HttpURLConnection connection = ...;
try {
    // Will throw IOException if server responds with 401.
    connection.getResponseCode(); 
} catch (IOException e) {
    // Will return 401, because now connection has the correct internal state.
    int responsecode = connection.getResponseCode(); 
}

I have also answered this question here: https://stackoverflow.com/a/15972969/816017