Sending an arbitrary soap message with Axis2

Axis2 code generation strictly follows the WS-I profile which prohibits sending soap messages with two child elements in the soap body. Even normal Service client API allows only one omElement to be send at the soap body.
One work around to send two elements is to use an operation client which allows a user to set whole SoapEnvelope hence sending any arbitrary one.

ServiceClient serviceClient = new ServiceClient();
OperationClient opClient = serviceClient.createClient(ServiceClient.ANON_OUT_IN_OP);
//creating message context
MessageContext outMsgCtx = new MessageContext();
Options opts = outMsgCtx.getOptions();
//setting properties into option
opts.setTo(new EndpointReference("http://localhost:8088/axis2/services/TestInOutService"));
opts.setAction("urn:TestInOutService");

SOAPFactory soapFactory = OMAbstractFactory.getSOAP11Factory();
SOAPEnvelope soapEnvelope = soapFactory.getDefaultEnvelope();

OMElement omElement1 = soapFactory.createOMElement(new QName("http://axis2.test","firstElement"));
OMElement omElement2 = soapFactory.createOMElement(new QName("http://axis2.test","secondElement"));

soapEnvelope.getBody().addChild(omElement1);
soapEnvelope.getBody().addChild(omElement2);

outMsgCtx.setEnvelope(soapEnvelope);
opClient.addMessageContext(outMsgCtx);
opClient.execute(true);

MessageContext inMsgtCtx = opClient.getMessageContext("In");

SOAPEnvelope response = inMsgtCtx.getEnvelope();
System.out.println(response);