Added timeout waiting for ACK when in syncrhonous mode. JM-993

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/branches@7531 b35dd754-fafc-0310-a699-88a17e54d16e

3_2_branch/src/java/org/jivesoftware/wildfire/nio/NIOConnection.java

@@ -236,7 +236,12 @@ public class NIOConnection implements Connection {
                     ioSession.write(buffer);
                 }
                 else {
-                    ioSession.write(buffer).join();
+                    // Send stanza and wait for ACK (using a 2 seconds default timeout)
+                    boolean ok =
+                            ioSession.write(buffer).join(JiveGlobals.getIntProperty("connection.ack.timeout", 2000));
+                    if (!ok) {
+                        Log.warn("No ACK was received when sending stanza to: " + this.toString());
+                    }
                 }
             }
             catch (Exception e) {