FactoryRegistry.getFactory(XMLStringBlockFactory.class);
// Create a Block using the sample string as the content. This simulates
// what occurs on the outbound JAX-WS dispatch<String> client
// In this case the sample string contains 2 elements a and aa
Block block = f.createFrom(this.sampleDouble, null, null);
// Add the block to the message as normal body content.
m.setBodyBlock(block);
// If there is a JAX-WS handler, the Message is converted into a SOAPEnvelope