XPATH QUESTION - SOAPFaultException

[prince davies]

I am getting SOAPFaultException on the fly and getting cause of the exception. This cause contains XML string to find out respective fault string.

How do i parse and feed soapfaultexception or cause into xpath methods?

How do I get value from the following node faultstring which is 3 layers down
detail
ReceivedFaultDetail
faultstring

soa = (SOAPFaultException)fe.getCause();

Parent and Children elements inside SOAP FAULT EXCEPTION 
[ <con:errorCode>BEA-382500</con:errorCode>, <con:reason>yyyyyy</con:reason>, 
<con:details> 
<con1:ReceivedFaultDetail xmlns:con1="<http://www.bea.com/wli/sb/stages/transform/config>"> 
<con1:faultcode>soapenv:Server</con1:faultcode> 
<con1:faultstring>ERR-666666 : error messsage here</con1:faultstring> 
<con1:detail> 
<ns7:ServiceException xmlns:S="<http://xsi:nil="true"> 
</ns7:ServiceException> 
</con1:detail> <con1:http-response-code>500</con1:http-response-code> </con1:ReceivedFaultDetail> 
</con:details>, <con:location><con:node>PipelinePairNode1</con:node><con:pipeline>PipelinePairNode1_request</con:pipeline><con:stage>checkAndDetermineBillingCycles1</con:stage><con:path>request-pipeline</con:path> </con:location>]