problem with a java class converting in web service

Hi,

I've created a java class that download in a local folder a csv file from
yahoo (containing the mib30 value) and then extract this value and return
it... Ive tried running this class and it works fine

now I want to transform this java class in a web service... I've got
eclipse, wtp and axis2 plugins, and I'm following this tutorial
(http://wso2.org/library/1719) to make the conversion of the java class in a
web service

My problem is that after i make aar file for the service and import this
into axis2, when I call http://localhost:8080/axis2/services I see that my
service is faulty, and clicking on link I see these errors

Error: org.apache.axis2.deployment.DeploymentException: Processing
Operations Modules Error in schema generating FornisciValore; nested
exception is: java.lang.ClassNotFoundException: FornisciValore; nested
exception is: org.apache.axis2.deployment.DeploymentException: Error in
schema generating FornisciValore; nested exception is:
java.lang.ClassNotFoundException: FornisciValore; nested exception is:
org.apache.axis2.deployment.DeploymentException: Processing Operations
Modules Error in schema generating FornisciValore; nested exception is:
java.lang.ClassNotFoundException: FornisciValore; nested exception is:
org.apache.axis2.deployment.DeploymentException: Error in schema generating
FornisciValore; nested exception is: java.lang.ClassNotFoundException:
FornisciValore at
org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(ArchiveReader.java:139)
at
org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:528)
at
org.apache.axis2.deployment.repository.util.WSInfoList.update(WSInfoList.java:196)
at
org.apache.axis2.deployment.RepositoryListener.update(RepositoryListener.java:227)
at
org.apache.axis2.deployment.RepositoryListener.checkServices(RepositoryListener.java:174)
at
org.apache.axis2.deployment.RepositoryListener.startListener(RepositoryListener.java:219)
at
org.apache.axis2.deployment.scheduler.SchedulerTask.checkRepository(SchedulerTask.java:61)
at
org.apache.axis2.deployment.scheduler.SchedulerTask.run(SchedulerTask.java:68)
at
org.apache.axis2.deployment.scheduler.Scheduler$SchedulerTimerTask.run(Scheduler.java:76)
at java.util.TimerThread.mainLoop(Timer.java:512) at
java.util.TimerThread.run(Timer.java:462) Caused by:
org.apache.axis2.deployment.DeploymentException: Processing Operations
Modules Error in schema generating FornisciValore; nested exception is:
java.lang.ClassNotFoundException: FornisciValore; nested exception is:
org.apache.axis2.deployment.DeploymentException: Error in schema generating
FornisciValore; nested exception is: java.lang.ClassNotFoundException:
FornisciValore at
org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:332)
at
org.apache.axis2.deployment.repository.util.ArchiveReader.buildServiceGroup(ArchiveReader.java:91)
at
org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(ArchiveReader.java:133)
.... 10 more Caused by: org.apache.axis2.deployment.DeploymentException:
Error in schema generating FornisciValore; nested exception is:
java.lang.ClassNotFoundException: FornisciValore at
org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:307)
.... 12 more Caused by: java.lang.ClassNotFoundException: FornisciValore at
java.net.URLClassLoader$1.run(URLClassLoader.java:200) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:188) at
java.lang.ClassLoader.loadClass(ClassLoader.java:306) at
java.lang.ClassLoader.loadClass(ClassLoader.java:251) at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at
java.lang.Class.forName0(Native Method) at
java.lang.Class.forName(Class.java:247) at
org.apache.ws.java2wsdl.SchemaGenerator.(SchemaGenerator.java:92) at
org.apache.axis2.deployment.util.Utils.fillAxisService(Utils.java:272) at
org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:297)
.... 12 more

Now I can't understand because my java class works fine, and when I convert
it in a web service doesn't work

Could you please help me? thanks a lot

This is the source code of my java class:

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

public class FornisciValore {

 /**
  * @param args
  */

   public static int returnValore () throws IOException
   {

       try
       {
           URL url = new URL("http://tinyurl.com/2ttw75");
           InputStream is = url.openStream();
           System.out.flush();
           FileOutputStream fos=null;
           fos = new FileOutputStream("C:\\WSmib30\\quotes.csv");
           int oneChar, count=0;
           while ((oneChar=is.read()) != -1)
           {
              fos.write(oneChar);
              count++;
           }
           is.close();
           fos.close();
       }
       catch (MalformedURLException e)
       { System.err.println(e.toString()); }
       catch (IOException e)
       { System.err.println(e.toString()); }

       BufferedReader filebuffer = new BufferedReader(new
FileReader("C:\\WSmib30\\quotes.csv"));
       String next,ultimo;
       next=filebuffer.readLine();
       filebuffer.close();
       ultimo=next.substring(7,12);
       System.out.println(ultimo); //print on screen mib30 value
       int valore = Integer.parseInt(ultimo); //convert mib30 string in an
integer value
       return(valore); // returns mib30 value

   }

}