getting strange exception trying to implement asynchronous http in google app engine for java

Question

I\'m trying to implement async http in java. Here is the important part of the code:

for (String urlString : urls) 
{ 
    // TODO: try and get rid of the         


        

Answer 1

My only guess is that it's due to a Future not completing before attempting to access its response. But that's a complete and utter guess!

Maybe check each of the futureResponses .isDone() and .isCancelled() before accessing its .get().