Debugging with Java
Fault Handlers
For details on how to inspect any SOAP Faults that are raised as a result of a server or transport error, see Fault Handling.
Tracing
For full SOAP tracing, run your Control API application by typing the following command:
java –Djavax.net.debug=all listVS
Alternatively, enable debugging within your application by adding the following line:
System.setProperty( "javax.net.debug", "all" );