Java EE (Java Enterprise Edition) General Discussion

I am using XPathAPI from xalan. I get NoMethod error on getNameSpaceURI at the line where I call XPathAPI. Just to check I tried calling getNameSpaceURI method on Node to find out.
The order in which JARs appear is
dom.jar;jaxp.jar;jaxp-api.jar;xercesImpl.jar;xalan.jar;xsltc.jar;crimson.jar;saxon-jdom.jar;xml.jar;xmlParserAPIs.jar;xml-apis.jar;

Most them seem to have Node.class. I tried altering the order it did not help much. If don't call getNameSpaceURI I do not get the comilation error but the run time error as after the code below.

Please help


Document doc = null;
try {
StringReader str = new StringReader(XMLField);
InputSource input = new InputSource(str);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
doc = db.parse(input);
}
catch (Exception e) {
e.printStackTrace();
}

Node contact = null;
try {
Node n = (Node) doc;
// System.out.println("Name Space is " + n.getNameSpaceURI());
contact = XPathAPI.selectSingleNode((Node)doc, "/contact");
}
catch (Exception e) {
ServletUtility.log(e);
throw new ServletException(e.toString());
}



Sun Jul 07 22:38:37 GMT+10:00 2002:<E> <ServletContext-General> Servlet failed w
ith Exception
java.lang.NoSuchMethodError: org.w3c.dom.Node: method getNamespaceURI()Ljava/lan
g/String; not found
at org.apache.xml.dtm.ref.dom2dtm.DOM2DTM.addNode(DOM2DTM.java:293)
at org.apache.xml.dtm.ref.dom2dtm.DOM2DTM.<init>(DOM2DTM.java:162)
at org.apache.xml.dtm.ref.DTMManagerDefault.getDTM(DTMManagerDefault.jav
a:291)
at org.apache.xml.dtm.ref.DTMManagerDefault.getDTMHandleFromNode(DTMMana
gerDefault.java:606)
at org.apache.xpath.XPathContext.getDTMHandleFromNode(XPathContext.java:
219)
at org.apache.xpath.XPathAPI.eval(XPathAPI.java:283)
at org.apache.xpath.XPathAPI.selectNodeIterator(XPathAPI.java:172)
at org.apache.xpath.XPathAPI.selectSingleNode(XPathAPI.java:133)
at org.apache.xpath.XPathAPI.selectSingleNode(XPathAPI.java:113)
at company.ProcessCompanyServlet.doGet(ProcessCompanyServlet.java:127)
at company.ProcessCompanyServlet.doPost(ProcessCompanyServlet.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:106)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:907)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:851)
at weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:252)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:364)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:252)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:129)