code: public void deliverAsyncException(Throwable e)
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "deliverAsyncException", e);
  
        if (proxyQueue != null)
        {
           proxyQueue.deliverException(e);
        }
        else
        {
           if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) SibTr.debug(this, tc, "** Odd - we are not async?!");
        }
  
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "deliverAsyncException");
     }
docs: This method is used when an asynchronous exception occurs and we want to send a message to
  any associated exception listeners on this connection.
  
  @param e The exception