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Help with xml parsing xml stream getting this see below code and exception

 
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import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.net.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import jcifs.smb.*;
import java.util.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import org.apache.xerces.parsers.*;
//import javax.xml.parsers.*;
//import org.xml.sax.*;
public class pleasework extends HttpServlet {

URL url;
URLConnection urlConn;
DataOutputStream printout;
BufferedReader input;
String str;
String testing ="hello son";
Vector trade = new Vector(1,1);


public void init() throws ServletException {

System.out.println("TestServlet : init");
}
public void destroy() {
System.out.println("TestServlet : destroy");
}


public void doPost(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException {
try
{
String user = req.getParameter("username");
String password = req.getParameter("password");

PrintWriter out = res.getWriter();


// URL of asp page.

url = new URL ("http://ssteward:5000");
// URL connection channel.
urlConn = url.openConnection();
// Let the run-time system (RTS) know that we want input.
urlConn.setDoInput (true);
// Let the RTS know that we want to do output.
urlConn.setDoOutput (true);
// No caching, we want the real thing.
urlConn.setUseCaches (false);
// Specify the content type.
urlConn.setRequestProperty("Content-Type", "application/InScope");

// Send POST output.
printout = new DataOutputStream (urlConn.getOutputStream ());

//send the content to the server.
// <InScopeLogin><UserName>"+user+"</UserName><Password>"+password+"</Password></InScopeLogin>
// <person sex="female"><firstname>Anna</firstname><lastname>Smith</lastname></person>


String content = "<?xml version=\"1.0\"?><methodCall><methodName>getFibonacci</methodName><params><param><value><i4>4</i4></value></param>< ;/params></methodCall>";
printout.writeBytes (content);
printout.flush ();
printout.close ();


// Get response data.


input = new BufferedReader(new InputStreamReader(urlConn.getInputStream()));
InputStream in = urlConn.getInputStream();
while (null != ((str = input.readLine())))
{
System.out.println (str);
out.println(str);
}
System.out.println ("outside of while "+str);

InputSource source = new InputSource(in);
DOMParser parser = new DOMParser();
parser.parse(source);
Document document = parser.getDocument();

Element methodCall = document.getDocumentElement();
if (!methodCall.getTagName().equals("methodCall")) {
fault("Root element must be methodCall", 1);
return;
}

NodeList methodNames = methodCall.getElementsByTagName("methodName");
if (methodNames.getLength() != 1) {
fault("There must be exactly one method name element", 1);
return;
}

Node methodName = methodNames.item(0).getFirstChild();
if (methodName == null | | methodName.getNodeType() != Node.TEXT_NODE ) {
fault("No method name", 1);
return;
}

Text methodNameText = (Text) methodName;
if (!methodNameText.getData().trim().equals("Fibonacci")) {
fault("Unrecognized method name: " + methodNameText.getData(), 1);
return;
}

NodeList paramsList = methodCall.getElementsByTagName("params");
if (paramsList.getLength() != 1) {
fault("There must be exactly one params element", 1);
return;
}

Element params = (Element) paramsList.item(0);
NodeList paramList = params.getElementsByTagName("param");
if (paramList.getLength() != 1) {
fault("There must be exactly one param element", 1);
return;
}

Element param = (Element) paramList.item(0);
NodeList valueList = param.getElementsByTagName("value");
if (valueList.getLength() != 1) {
fault("There must be exactly one value element", 1);
return;
}

Element value = (Element) valueList.item(0);
NodeList intList = value.getChildNodes();
if (intList.getLength() != 1) {
fault("There must be exactly one int or i4 element", 1);
return;
}

String intString = intList.item(0).getFirstChild().getNodeValue();
System.out.println("Int string: " + intString);

// close the Input Stream
//input.close ();
in.close();

}
catch (SAXException e)
{
System.err.println(e.getMessage());
}
catch (IOException ioe)
{
System.out.println("11");
System.err.println(ioe.getMessage());
}

System.out.println ("-----------------------");

//doGet(req, res);
}

private void fault(String errorMessage, int code)throws IOException
{
System.out.println("Fault: " + errorMessage);
}

public void doGet(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException {

res.setContentType("text/html");

PrintWriter out = res.getWriter();

// print content

out.println("<?xml version=\"1.0\" encoding=\"utf-8\"?><pwCmdXML><Command>SubmitJob</Command><CommandPassword>aPwd</CommandPassword><ProjectName>TheProject</ProjectName>& lt;ProjectType>pType</ProjectType><ObjectClass>stuff</ObjectClass><ObjectList>1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28, 29,30,31,32,33,34,35,36</ObjectList></pwCmdXML>");
out.flush();
out.close();

}


}
//////////////////Servlet Exception any ideas thansk///////////

A Servlet Exception Has Occurred
Exception Report:
javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at filters.ExampleFilter.doFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContext.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.valves.AccessLogValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.connector.http.HttpProcessor.process(Unknown Source)
at org.apache.catalina.connector.http.HttpProcessor.run(Unknown Source)
at java.lang.Thread.run(Thread.java:484)
Root Cause:
java.lang.LinkageError: Class org/xml/sax/InputSource violates loader constraints
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:484)
at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:303)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:860)
at pleasework.doPost(pleasework.java:110)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at filters.ExampleFilter.doFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContext.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.valves.AccessLogValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.connector.http.HttpProcessor.process(Unknown Source)
at org.apache.catalina.connector.http.HttpProcessor.run(Unknown Source)
at java.lang.Thread.run(Thread.java:484)

------------------
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