clientOptions.setProperty(MessageContextConstants.TRANSPORT_URL,toEPR);
clientOptions.setProperty(Sandesha2ClientAPI.SEQUENCE_KEY,"sequence1"); //Optional
clientOptions.setSoapAction("test:soap:action");
clientOptions.setProperty(Sandesha2ClientAPI.OFFERED_SEQUENCE_ID,SandeshaUtil.getUUID()); //Optional
Callback callback1 = new TestCallback ("Callback 1");
call.invokeNonBlocking("echoString", getEchoOMBlock("echo1"),callback1);
Callback callback2 = new TestCallback ("Callback 2");
call.invokeNonBlocking("echoString", getEchoOMBlock("echo2"),callback2);
clientOptions.setProperty(Sandesha2ClientAPI.LAST_MESSAGE, "true");
Callback callback3 = new TestCallback ("Callback 3");
call.invokeNonBlocking("echoString", getEchoOMBlock("echo3"),callback3);