Certain situations could cause quite a bit of noise in the log file

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@3967 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/filetransfer/ProxyConnectionManager.java

@@ -93,8 +93,13 @@ public class ProxyConnectionManager {
                         socket = serverSocket.accept();
                     }
                     catch (IOException e) {
-                        Log.error("Error accepting procy connection", e);
-                        continue;
+                        if(!serverSocket.isClosed()) {
+                            Log.error("Error accepting proxy connection", e);
+                            continue;
+                        }
+                        else {
+                            break;
+                        }
                     }
                     executor.submit(new Runnable() {
                         public void run() {