Sometimes HttpURLConnection.getInputStream executes too slowly

Question

We have next code.
Sometimes we should wait 10-20-40 seconds on the last line.
What can be the problem?

Java 1.4

URL url = ...;
HttpURLConn         


        

Answer 1

Had the same problem, found out it was caused by IPv6.

You Disable it from code using:

System.setProperty("java.net.preferIPv4Stack" , "true");

You can also disable it via the command line using : g-Djava.net.preferIPv4Stack=true