Java JAX-WS web-service client: how log request & response xml?

Question

I created an implementation of LoggingHandler that implements SOAPHandler

It should log whenever handleMess

Answer 1

If anyone is wondering the 'why' of @EugeneP excellent answer.

In the Interface javax.xml.ws.Binding, there is the following comment.

/**
 * Gets a copy of the handler chain for a protocol binding instance.
 * If the returned chain is modified a call to 
 setHandlerChain
 * is required to configure the binding instance with the new chain.
 *
 *  @return java.util.List<Handler> Handler chain
 */
 public java.util.List getHandlerChain();

So the getHandlerChain() method returns a copy of the List not the list itself. So you have to use setHandlerChain to update the actual List.