Backport synchronous sends patch

[tresf]

There was a patch to 2.0 which helped synchronize the sends to avoid the Blocking message pending 10000 for BLOCKING message.

https://github.com/qzind/tray/commit/a6e71e92dcd46fef40d6e34110a7e3a240e7e4b6

This fix should be evaluated and ported to 1.9 if applicable.

-    private static void send(Session session, JSONObject reply) {
+    private static synchronized void send(Session session, JSONObject reply) {
         try {
             session.getRemote().sendString(reply.toString());
         }
-        catch(WebSocketException e) {
+        catch(Exception e) {
             log.error("Could not send message", e);
         }
-        catch(IOException e) {
-            log.error("Send failed", e);
-        }
     }

[akberenz]

Backported in fdbfff48ab4e792a3170fb4b764575788486becf It looks like the catch all block was already there, so this doesn't seem like the cause behind the client needing to reload the software.

[tresf]

Closed via fdbfff4.