code: protected void sendMessage(String handler, List<?> arguments) {
          final SharedObjectEvent event = new SharedObjectEvent(Type.CLIENT_SEND_MESSAGE, handler, arguments);
          if (ownerMessage.addEvent(event)) {
              syncEvents.add(event);
              sendStats.incrementAndGet();
              if (log.isTraceEnabled()) {
                  log.trace("Send message: {}", arguments);
              }
          }
      }
docs: Broadcast event to event handler
  
  @param handler
  Event handler
  @param arguments
  Arguments