I don't see anything too unusual here, since sun.net.www.protocol.http.HttpURLConnection.getInputStream() and java.io.BufferedInputStream.read() are both synchronized methods. Rather than a lock problem, I would guess that jrockit.net.SocketNativeIO.readBytesPinned() is hanging, waiting for something to read, though I don't have the source for the jrockit classes. You could try setting the value of "timeout" to see if the call times out. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4219340#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...