How to parse a soap response in java -

i want parse soap response (xml file) in java. example want extract value cv2 last operation in file (event.xml). used xpath in code have error compilation:

"exception in thread "main" java.lang.classcastexception: org.apache.xerces.dom.deferredtextimpl cannot cast javax.xml.soap.node"

if have ideas, please me :) please see below soap xml

<?xml version='1.0' encoding='utf-8'?> <soapenv:envelope xmlns:soapenv="...">     <soapenv:body>         <ns1:commandresponsedata xmlns:ns1="...">             <ns1:commandresult>                 <ns1:transactionresult>                     <ns1:operationresult>                         <ns1:operation name="operationname" modifier="modify">                             <ns1:parameterlist>                                 <ns1:stringparameter name="n1">v1</ns1:stringparameter>                                 <ns1:datetimeparameter name="d1">value</ns1:datetimeparameter>                             </ns1:parameterlist>                         </ns1:operation>                          <ns1:operation name="operationname" modifier="modify">                             <ns1:parameterlist>                                 <ns1:structparameter name="ratingoutput">                                     <ns1:listparameter name="c1">                                         <ns1:structelement>                                             <ns1:stringparameter name="b1">bal1</ns1:stringparameter>                                             <ns1:longparameter xsi:type="ns1:longparameter" name="cv1"                                                                xmlns:xsi="http://www.w3.org/2001/xmlschema-instance">80                                             </ns1:longparameter>                                             <ns1:longparameter xsi:type="ns1:longparameter" name="nb1"                                                                xmlns:xsi="http://www.w3.org/2001/xmlschema-instance">                                                 1920                                             </ns1:longparameter>                                         </ns1:structelement>                                     </ns1:listparameter>                                 </ns1:structparameter>                             </ns1:parameterlist>                         </ns1:operation>                          <ns1:operation name="operationname" modifier="modify">                             <ns1:parameterlist>                                 <ns1:structparameter name="ratingoutput">                                     <ns1:listparameter name="c1">                                         <ns1:structelement>                                             <ns1:stringparameter name="b2">bal2</ns1:stringparameter>                                             <ns1:longparameter xsi:type="ns1:longparameter" name="cv2"                                                                xmlns:xsi="http://www.w3.org/2001/xmlschema-instance">60                                             </ns1:longparameter>                                             <ns1:longparameter xsi:type="ns1:longparameter" name="nb2"                                                                xmlns:xsi="http://www.w3.org/2001/xmlschema-instance">                                                 1860                                             </ns1:longparameter>                                         </ns1:structelement>                                     </ns1:listparameter>                                 </ns1:structparameter>                             </ns1:parameterlist>                         </ns1:operation>                      </ns1:operationresult>                 </ns1:transactionresult>             </ns1:commandresult>         </ns1:commandresponsedata>     </soapenv:body>  </soapenv:envelope> 

... , code

import java.io.ioexception;  import javax.xml.parsers.parserconfigurationexception; import javax.xml.xpath.xpathexpressionexception;  import org.xml.sax.saxexception;  import javax.xml.parsers.documentbuilder; import javax.xml.parsers.documentbuilderfactory; import javax.xml.soap.node; import javax.xml.xpath.xpath; import javax.xml.xpath.xpathconstants; import javax.xml.xpath.xpathfactory;  import org.w3c.dom.document;   public class parseevent {      static final string file = "src/xml/event.xml";      public static void main(string[] args) throws parserconfigurationexception, saxexception, ioexception, xpathexpressionexception {         documentbuilderfactory dbf = documentbuilderfactory.newinstance();         dbf.setnamespaceaware(false);         documentbuilder db = dbf.newdocumentbuilder();         document doc = (document) db.parse(file);         xpath xpath = xpathfactory.newinstance().newxpath();          node cv2 = (node) xpath.evaluate("//operation [last()]/parameterlist/structparameter[@name='ratingoutput']/listparameter[@name='c1']/structelement/longparameter[@name='cv2']/text()",                 doc.getdocumentelement(), xpathconstants.node);          system.out.println("the charged value of test :" + cv2.getnodevalue());     } }