Hi there....
I got above error and below are my java files....Pls help me to see what is wrong with my script?

I know that my points currently not enough, but i do hope someone will entertain me in this problem........

thanks very much

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DataMirror.java(1st file)
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package com.db.util;


import java.sql.*;
import java.io.*;
import java.util.Calendar;

import org.apache.log4j.PropertyConfigurator;                                                                
import org.apache.log4j.Logger;

import com.db.util.ConfigProperties;

public class DataMirrorAgentWap {
      static Logger logger = Logger.getLogger( DataMirror.class.getName() );
      
      protected final static String CONFIG_FILE       = "wdb_mir.properties";
      private static String log_config      = "2w_por_log4j.properties";
      
      private final static String db_source_driver      = "org.gjt.mm.mysql.Driver";
      private final static String db_source_url            = "jdbc:mysql://localhost/content";
      private final static String db_source_username      = "content";
      private final static String db_source_password      = "content";
      
      // Target DB
      private final static String db_target_driver      = "org.gjt.mm.mysql.Driver";
      private final static String db_target_url            = "jdbc:mysql://localhost/content_w";
      private final static String db_target_username      = "content";
      private final static String db_target_password      = "content";
      
      private String sDB_Source_Driver      = null;
      private String sDB_Source_Url            = null;
      private String sDB_Source_Username      = null;
      private String sDB_Source_Password      = null;
      private String sDB_Target_Driver      = null;
      private String sDB_Target_Url            = null;
      private String sDB_Target_Username      = null;
      private String sDB_Target_Password      = null;

      private Connection dbSourceConnection      = null;
      private Connection dbTargetConnection      = null;
      

      private String chargeid;
    private String contentid;
    private String providerid;
    private String thumbnail;
    private int contenttype;
    private int contenttype_;
    private String timestamp_;    
    private String timestamp_2;
    private int artistid_;
    private String artist_desc;
      
      public DataMirror() {
            init();
      }
      
      private void init() {
            sDB_Source_Driver      = ConfigProperties.getProperty( db_source_driver );
            sDB_Source_Url            = ConfigProperties.getProperty( db_source_url );
            sDB_Source_Username      = ConfigProperties.getProperty( db_source_username );
            sDB_Source_Password      = ConfigProperties.getProperty( db_source_password );

            sDB_Target_Driver      = ConfigProperties.getProperty( db_target_driver );
            sDB_Target_Url            = ConfigProperties.getProperty( db_target_url );
            sDB_Target_Username      = ConfigProperties.getProperty( db_target_username );
            sDB_Target_Password      = ConfigProperties.getProperty( db_target_password );
            
      }
      
      public void connectDBSource() {
            logger.info( "Connecting Database Source..." );
            try {
                  Class.forName(sDB_Source_Driver);
                  dbSourceConnection      = DriverManager.getConnection( sDB_Source_Url,
                        sDB_Source_Username, sDB_Source_Password );
                  logger.info( "Connecting Database Source...done" );
            }
            catch(SQLException sqle) {
                  logger.error( "SQLException in connectDBSource(): " + sqle );
            }
            catch(Exception e) {
                  logger.error( "Exception in connectDBSource(): " + e );
            }
      }

      public void connectDBTarget() {
            logger.info( "Connecting Database Target..." );
            try {
                  Class.forName(sDB_Target_Driver);
                  dbTargetConnection      = DriverManager.getConnection( sDB_Target_Url,
                        sDB_Target_Username, sDB_Target_Password );
                  logger.info( "Connecting Database Target...done" );
            }
            catch(SQLException sqle) {
                  logger.error( "SQLException in connectDBTarget(): " + sqle );
            }
            catch(Exception e) {
                  logger.error( "Exception in connectDBTarget(): " + e );
            }
      }

      public void disconnectDBSource() {
            logger.info( "Disconnecting Database Source..." );

            if( dbSourceConnection != null ) {
                  try {      
                        dbSourceConnection.close();
                        logger.info( "Disconnecting Database Source...done" );
                  }
                  catch(SQLException sqle) {
                        logger.error( "SQLException in disconnectDBSource(): " + sqle );
                  }
            }
      }

      public void disconnectDBTarget() {
            logger.info( "Disconnecting Database Target..." );

            if( dbTargetConnection != null ) {
                  try {      
                        dbTargetConnection.close();
                        logger.info( "Disconnecting Database Target...done" );
                  }
                  catch(SQLException sqle) {
                        logger.error( "SQLException in disconnectDBTarget(): " + sqle );
                  }
            }
      }
      
      public boolean updateContent( ResultSet rs ) {
            boolean bUpdateResult      = false;

            if( rs == null ) {
                  return bUpdateResult;
            }

            String sUpdateSQL      = "INSERT INTO content_2 "
                  + " (CONTENT_ID, TITLE, CONTENT_DESC, ARTIST, CHARGE_ID, CONTENT_TYPE, CATEGORY_ID, PROVIDER_ID,"
                  + " FILE_REF, THUMBNAIL, OTHER_ID, OTHER_OWNER, UPD_TIMESTAMP)"
                  + " VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)";

            PreparedStatement stmt      = null;
            
            int iResult      = 0;

            try {
                  if( dbTargetConnection == null ) {
                        connectDBTarget();
                  }

            //Get Artist Description
            contenttype = Integer.parseInt(rs.getString(6));
            timestamp_ = rs.getString(9);
            artistid_ = rs.getInt(10);  
            providerid = "CP0001";
           
            convert_Content_Type();
            determine_Charge_ID();
            determine_Thumbnail();
            trim_Timestamp();
            search_Artist_Desc();


                  stmt      = dbTargetConnection.prepareStatement( sUpdateSQL );
                  stmt.setString( 1, rs.getString(1) );
                  stmt.setString( 2, rs.getString(2) );
                  stmt.setString( 3, rs.getString(3) );
                  stmt.setString( 4, artist_desc );
                  stmt.setString( 5, chargeid );
                  stmt.setInt( 6, contenttype_ );
                  stmt.setInt( 7, rs.getInt(7) );
                  stmt.setString( 8, providerid );
                  stmt.setString( 9, rs.getString(9) );
                  stmt.setString( 10, thumbnail );
                  stmt.setString( 11, rs.getString(11) );
                  stmt.setString( 12, rs.getString(12) );
                  stmt.setString( 13, timestamp_2 );
                  

                  iResult        = stmt.executeUpdate();

                  if( iResult > 0 ) {
                        bUpdateResult      = true;
                  }
            }
            catch( SQLException sqle ) {
                  logger.error( "SQLException in updateContent: " + sqle );
            }
            catch( Exception e ) {
                  logger.error( "Exception in updateContent: " + e );
            }

            return bUpdateResult;
      }
      
      //populate the database based on the timeframe
      public int populateContent2( java.util.Date date, int Index, int Limit ) {
            logger.info( "Populating Data Incoming..." );


            long lStartTime      = System.currentTimeMillis();

            int iTotalRead            = 0;
            int iTotalUpdate      = 0;
            

            if( date == null ) {
                  date      = new java.util.Date();
            }

            java.sql.Date sqlDate      = new java.sql.Date( date.getTime() );

            String sSQL      = "SELECT CONTENT_REF,TITLE,CONTENT_DESC,CATEGORY_ID,FILE_REF,content_type,"
                          +"OTHER_ID,OTHER_OWNER,UPDATE_TIME,ARTIST_ID"
                          +"FROM content WHERE UPDATE_TIME>= ? LIMIT ?,?";

            ResultSet rs                  = null;
            PreparedStatement stmt      = null;

            try {
                  if( dbSourceConnection == null ) {
                        connectDBSource();
                  }

                  stmt      = dbSourceConnection.prepareStatement( sSQL );
                  stmt.setDate( 1, sqlDate );
                  stmt.setInt( 2, Index );
                  stmt.setInt( 3, Limit );
                  rs        = stmt.executeQuery();

                  boolean bUpdateResult      = false;
                  while( rs.next() ) {
                        iTotalRead++;
                        bUpdateResult      = updateContent(rs);

                        if( bUpdateResult ) {
                              iTotalUpdate++;      
                        }
                  }
            }
            catch( SQLException sqle ) {
                  logger.error( "SQLException in populateContent: " + sqle );
            }
            catch( Exception e ) {
                  logger.error( "Exception in populateContent: " + e );
            }

            long lElapsedTime      = (System.currentTimeMillis() - lStartTime) / 1000;

            logger.info( "Transaction Date: " + date );
            logger.info( "Total Read: " + iTotalRead + " record(s)" );
            logger.info( "Total Update: " + iTotalUpdate + " record(s)" );
            logger.info( "Process time: " + lElapsedTime + " sec(s)" );

            logger.info( "Populating content_2...done" );

            return iTotalRead;
      }
      
      /*Determine static Data for content_2*/
      private void convert_Content_Type(){
            
      if(contenttype == 11)
      
         contenttype_ = 1;
             
         else if(contenttype == 12)
        
             contenttype_ = 6;
             
               else if(contenttype == 15)
               
                    contenttype_ = 4;
                    
                         else if(contenttype == 18)
                         
                              contenttype_ = 5;      
      }      

      private void determine_Charge_ID(){
            
      if(contenttype == 11)
      
         chargeid = "MONOCHG1";
        
         else if(contenttype == 12)
        
             chargeid = "POLYCHG1";
             
               else if(contenttype == 15)
               
                    chargeid = "MMSCHG1";
                    
                         else if(contenttype == 18)
                         
                              chargeid = "JAVACHG1";
      }                

      private void determine_Thumbnail() {            
      //content type: mono/poly ringtones
      if(contenttype == 11 || contenttype == 12)
      
         thumbnail = "NULL";
        
              //content type: wallpapers
              else if(contenttype == 15)
               
                  thumbnail = "NULL";
                    
                         //content type: JAVA games            
                         else if(contenttype == 18)
                         
                              thumbnail = "NULL";      
      }


      private void trim_Timestamp(){            
        timestamp_2 = timestamp_.substring(1,14);
      }
      
      
      private void search_Artist_Desc(){            
            ResultSet rs                  = null;
            Statement statement          = null;
      
            try {
                        if( dbSourceConnection == null ) {
                              connectDBSource();
                        }
             
             statement      = dbSourceConnection.createStatement();
      
             String query = "SELECT artist_name FROM artist "
                                    +"WHERE ARTIST_ID = '"
                                    +artistid_+ "'";
             rs = statement.executeQuery( query );
             getArtist( rs );
             statement.close();
             }
             catch( SQLException sqle ) {
                        logger.error( "SQLException in search_Artist_Desc: " + sqle );
             }
             catch( Exception e ) {
                        logger.error( "Exception in search_Artist_Desc: " + e );
             }
      }

       public void getArtist( ResultSet rs )
         {
             try {        
                  
               rs.next();
            
               artist_desc = rs.getString(1);
              }
               catch( SQLException sqle ) {
                        logger.error( "SQLException in getArtist: " + sqle );
              }
               catch( Exception e ) {
                        logger.error( "Exception in getArtist: " + e );
              }
       }

      public static void main( String[] args ) throws Exception{            
            try {
                  ConfigProperties.getInstance( CONFIG_FILE );
                  
                  /* Get Log4j  LogConfig */
                  String sLogFile      = ConfigProperties.getProperty( log_config );
                  if( sLogFile != null ) {
                        PropertyConfigurator.configure( sLogFile );
                  }
            }
            catch( IOException ioe ) {
                  System.out.println( "IOException: " + ioe );
            }
            
            String sDate                  = null;
            java.util.Date trxDate      = null;
            if( args.length == 1 ) {
                  sDate      = args[0];
                  //trxDate      = GenericUtility.getDateFromString(
                  //      GenericUtility.DATE_FORMAT, sDate );
            }
            
            logger.info( "Starting Data Mirroring" );

            DataMirror agent = new DataMirror();
            // Connect DB
            agent.connectDBSource();
            agent.connectDBTarget();
            
            // Populate content_2
            int iIndex      = 0;
            int iLimit      = 1000;
            int iResult      = 0;
            do {
                  iResult      = agent.populateContent( trxDate, iIndex, iLimit );
                  logger.info( "content_2: " + iResult );                  
                  iIndex      = iIndex + iLimit;
            }
            while( iResult == iLimit );
            
            // Disconnect DB
            agent.disconnectDBSource();
            agent.disconnectDBTarget();
            logger.info( "Data Mirroring done" );
      }
}

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ConfigProperties.java (2nd file)
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package com.db.util;

import java.util.Properties;
import java.io.*;

public final class ConfigProperties {
      private static ConfigProperties instance;

        //private static String file_properties       = null;
        private static String file_properties       = "wdb_mir.properties";
        private static Properties ppty                   = null;

      private ConfigProperties() {
            // private constructor            
      }

        /*
          * Get the instance of the SMSGatewayProperties.
          */
        public static ConfigProperties getInstance( String filename )
                  throws FileNotFoundException, IOException {
                              
            if( instance == null ) {

                if ( null == ppty ) {
                        try {
                          System.out.println( "LOADING properties......" );
                          ppty = new Properties();
                          FileInputStream in = new FileInputStream( filename );
                          ppty.load( in );
                          in.close();

                        }
                        catch( FileNotFoundException e ) {
                          throw new FileNotFoundException(
                                    "File - " + filename + " not found in the working directory" );
                        }
                  }
               }

            return instance;
        }

        static public String getProperty( String key ) {
                  
          String str = ppty.getProperty( key );
            
          if ( null == str ) {
                  System.out.println(
                  "Warning: attempt to get an non-existant value in property file: " + key );
            }

          return str;
        }
}