This took me quite a long time to figure out. I\'m asking this question so I can answer it for others:
How do you get useful logging info from the CXF Rest Client?
Using the JAX-RS 2.0 client from CXF 3.1.x I am having some trouble getting the LoggingInInterceptor and LoggingOutInterceptor to work. I changed to use the LoggingFeature as described at http://cxf.apache.org/docs/message-logging.html and it worked first try:
Client client = ClientBuilder.newBuilder().register(LoggingFeature.class).build()