Jack,
Hope bellow points will help you to solve your Problem.
You can process in 3 ways.
1) IN your client code you need an catch block for AxisFault and U need to
retrieve the message from that exception
try{
//Client code
}catch(AxisFault af){
if(af!=null){
String faultMsg = af.getMessage();
System.out.println("FaultString :: "+faultMsg );
}
}
2) If it is coming as a string, then you can do some String operation.
3) You can also take the help of dom parser or sax parse to retrieve the
specific value, because it is coming as a xml format.
Thanks,
Satya