Plz help me out of this problem

Question

Hey guys i dont know where to post this topic questions,
I am using JasperReports and IReport to desgin jrxml. I am having a problem while executing the java program which generates the html file to the local folder as per the design. It was worked well yester day. But When working today with some other data it shows exception. The code is
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.data.*;
import net.sf.jasperreports.engine.fill.*;
import net.sf.jasperreports.engine.export.*;
import net.sf.jasperreports.engine.util.*;
import net.sf.jasperreports.view.*;
import java.sql.*;
import java.util.*;
import java.io.*;
import java.net.*;
public class CountryTest{
public static void main(String arg[]){
String filename = "f:/iReport-0.4.1/iReport-0.4.1/countrynew.jasper";
String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
String connectString = "jdbc:odbc:abcddf";
String user = "sfddf";
String password = "sfsdfdddd";
HashMap param = new HashMap();
try{
     Class.forName(driver);
     Connection conn = DriverManager.getConnection(connectString, user, password);
JasperExportManager.exportReportToHtmlFile(JasperFillManager.fillReportToFile(filename,param,conn));
File reportFile = new File("f:/iReport-0.4.1/iReport-0.4.1/Country.jasper");
System.out.println(reportFile);
JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());
System.out.println(jasperReport);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport,param,conn);
System.out.println(jasperPrint);
catch (Exception e)
     e.printStackTrace();
     //System.exit(1);
The same code is worked fine yesterday(23/02/2005). But the same is shows some exception when i execute today (i just change the jasper file product.jasper instead of Country.jasper). The exception is
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/jdt/internal/compiler/env/INameEnvironment
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at net.sf.jasperreports.engine.design.JRDefaultCompiler.loadCalculator(JRDefaultCompiler.java:192)
at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:370)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:126)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:118)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:111)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:291)
at net.sf.jasperreports.engine.JasperFillManager.fillReportToFile(JasperFillManager.java:182)
at net.sf.jasperreports.engine.JasperFillManager.fillReportToFile(JasperFillManager.java:138)
at JustTest.main(JustTest.java:27)
reply me immedtly
san

Answer 1

i'm already over this issue, now i'm face to face with the next:
java.lang.NoSuchMethodException: Unknown property 'appat'
at org.apache.commons.beanutils.PropertyUtils.getSimpleProperty(PropertyUtils.java:1175)
at org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUtils.java:772)
at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:801)
at net.sf.jasperreports.engine.data.JRBeanArrayDataSource.getFieldValue(JRBeanArrayDataSource.java:148)
at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:890)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:160)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:691)
at net.sf.jasperreports.engine.fill.JRFillSubreport.run(JRFillSubreport.java:427)
at java.lang.Thread.run(Thread.java:534)
NESTED BY :
net.sf.jasperreports.engine.JRException: Error retrieving field value from bean : appat
at net.sf.jasperreports.engine.data.JRBeanArrayDataSource.getFieldValue(JRBeanArrayDataSource.java:160)
at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:890)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:160)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:691)
at net.sf.jasperreports.engine.fill.JRFillSubreport.run(JRFillSubreport.java:427)
at java.lang.Thread.run(Thread.java:534)
any idea to solve it???
sorry about my english, i know isn't good enought