Why am I getting this error?

Hello,
I am trying to call my Java class from a JSP page. I am getting this error:
Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\em\jsp\Test_0005fSummarySBU_0005fscreen$jsp.java:82: Wrong number of arguments in constructor.
strQuery=new ListReturn(strEssUser, strProcessingMonth, strProcessingYear);
I don't understand why I am getting this error as I pass three paramters to the Java class, and I accept three parameters in the constructor.
JSP:

<META Http-Equiv="Expires" Content="0">
<META Http-Equiv="Pragma" Content="no-cache">
<HTML>

<%@ page import="com.home.tool.reporting.*" %>
<%@ page errorPage="run_error.jsp" %>
<%@ page import="java.util.List,
                 java.util.Collection,
            java.net.URLDecoder" %>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<TITLE>Economic Model - Summary SBU Report</TITLE>

<BODY bgcolor=#ffffff>
<%
                Collection strQuery = null;
                String strEssUser = "test";
                String strProcessingMonth = "JUL";
                String strProcessingYear = "2002";
                strQuery=new ListReturn(strEssUser, strProcessingMonth, strProcessingYear);
                System.out.println(strQuery);
%>
</BODY>
</HTML>Java class:
package com.home.tool.reporting;
import java.net.URL;
import java.sql.*;
import java.io.*;
import java.util.*;
public class ListReturn extends ReportQueryBuilder
        public void ListReturn()
        public Collection ListReturn(String userID, String pMonth, String pYear)
            throws ReportQueryBuilderException
            //declare Collection store Value-Object pairs
            Collection c = new ArrayList();
            //declare and initialize variables
            CallableStatement cs = null;
            ResultSet rs = null;
            // declare call for stored procedure to pass in three parameters
            String pass = "{Call dbo.p_rep_srSbuList(?, ?, ?)}";
            try
                //open CallableStatement using JDBC connection to SQL database
                cs = con.prepareCall(pass);
                //set IN parameters
                cs.setString(1, userID);
                cs.setString(2, pMonth);
                cs.setString(3, pYear);
                //execute call and return result set
                rs = cs.executeQuery();
                //loop through result set storing each record as a Value-Object pair
                while(rs.next())
                    c.add(new ListBoxValueObjects(rs.getString(1), rs.getString(2)));
            catch (SQLException sqle)
          throw new ReportQueryBuilderException(replaceToken("Problems executing query: "+sqle.getMessage(), "'", "\\'"));
            finally
                try
                    //close the Result Set and CallableStatement
                    rs.close();
                    cs.close();
                catch(Exception e)
                    System.out.print("\nFATAL   : " + e);
                    System.out.print("\nFATAL   : " + e);
            return c;
}Does anyone see whay I am getting this error??
I can't figure out the problem!

change this:
<%
     Collection strQuery = null;
     String strEssUser = "test";
     String strProcessingMonth = "JUL";
     String strProcessingYear = "2002";
     strQuery=new ListReturn(strEssUser, strProcessingMonth, strProcessingYear);
     System.out.println(strQuery);
%>To this:
<%
     Collection strQuery=null;
     String strEssUser="test";
     String strProcessingMonth="JUL";
     String strProcessingYear="2002";
     lr=new ListReturn(strEssUser, strProcessingMonth, strProcessingYear);
     System.out.println(lr.getQuery())
%>Then make a new public method in your Java called getQuery()
public Collection getQuery();Do what you need to do to process it and return the value in getQuery. You will also probably need to make private variables in you declaration to do the processing on.

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