MessageContext messageContext = new MessageContext();
sessionNumber = getSessionTurn(envelopes.length);
messageContext.setEnvelope(envelopes[sessionNumber]);
OperationClient op = client.createClient(ServiceClient.ANON_OUT_IN_OP);
op.addMessageContext(messageContext);
op.execute(true);
MessageContext responseContext =
op.getMessageContext(WSDLConstants.MESSAGE_LABEL_IN_VALUE);
SOAPEnvelope responseEnvelope = responseContext.getEnvelope();