and in the configuration file (soap_properties.cfg) define.
java.property.com.tibco.plugin.soap.trace.inbound=true
java.property.com.tibco.plugin.soap.trace.outbound=true
java.property.com.tibco.plugin.soap.trace.filename=c:/soap.txt
java.property.com.tibco.plugin.soap.trace.pretty=true
Trace.Task.*=true
Trace.Debug.*=true
This is helpful in doing junit testing for any webservice integration from designer