Check out example codes for "debug cxf". It will help you in understanding the concepts better.

Code Example 1

// jvm args
// log4j
-Dorg.apache.cxf.Logger=org.apache.cxf.common.logging.Log4jLogger
// slf4j
-Dorg.apache.cxf.Logger=org.apache.cxf.common.logging.Slf4jLogger

// log4j example
    <Logger name="org.apache.cxf" level="debug"  additivity="false">
    	<AppenderRef ref="Console"/>
    	<AppenderRef ref="File"/>
    </Logger>
// logback
	<logger name="org.apache.cxf" level="debug"/>

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