NegativeArraySizeException Blog Reader App

no one? :/

Hi @Fabian,

So the original app is requesting JSON data of a specific format from the Treehouse blog. The code you pasted should get and log data from a web request:

InputStream inputstream = connection.getInputStream();
Reader reader = new InputStreamReader(inputstream); 
int contentLength = connection.getContentLength(); 
char[] charArray = new char[contentLength]; 
reader.read(charArray); 
String responseData = new String(charArray); 
Log.v(TAG, responseData);

Where you'll likely run into trouble is trying to do anything else with that data. The rest of the app is based on the data format being returned by the Treehouse blog, so you'd need to adjust how you parse the data if you request from a different URL like the ones you posted.

Now, as to why you're getting a NegativeArraySizeException...can you see in Eclipse which line of code is throwing the exception? What you posted seems okay, so it might be somewhere else in your code where it's failing. Depending on how far you are in the Blog Reader course, code added later (parsing the data returned from the web) would definitely cause it to break if the format is different. But you should be able to simply write the data to the log.

I am having the same problem. It works fine with the treehouse url, but no others. For some reason getContentLength() is return -1. (I have commented code after reader.read(), so the problem isn't with the format of the JSON data.

ah, the server isn't setting Content-Length in the header... I think that should fix it.