Problem etablishing connection between oracle SQL and JDBC

Question

Hi friends i have been trying this code from two days i donno whats wrong please try to sort the problem thank u in advance this is my program:
//This is my Connection class
package com.java.jdbc.util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class EmployeeUtil {
     public EmployeeUtil()
     public static Connection getconnection()
          Connection con=null;
          try {
               Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
               //DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
               con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORANT","system","manager");
          // Class.forName("sun.jdbc.odbc.OracleDriver").newInstance();
          // con = DriverManager.getConnection("jdbc:odbc:Javatut","System","manager");
          } catch (ClassNotFoundException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (SQLException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (InstantiationException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IllegalAccessException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          return con;
//This is my DB class:
package com.java.jdbc.DB;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import com.java.jdbc.info.EmployeeInfo;
import com.java.jdbc.util.EmployeeUtil;
public class EmployeeDB {
     Connection connection=null;
     public EmployeeDB()
          //this.connection=EmployeeUtil.getconnection();
     public void select(EmployeeInfo empinfo)
          this.connection=EmployeeUtil.getconnection();
          String stb = "select * from employee";
     try {
               Statement stmt = connection.createStatement();
               ResultSet rs = stmt.executeQuery(stb);
               System.out.println(rs);
               //EmployeeInfo empinfo = new EmployeeInfo();
               while(rs.next())
                    empinfo.setEmpId(rs.getString(1));
                    empinfo.setEmpfName(rs.getString(2));
                    empinfo.setEmplName(rs.getString(3));
                    empinfo.setEmpAge(rs.getString(4));
                    empinfo.setEmpSalary(rs.getString(5));
                    System.out.println("The EmployeeID is : "+empinfo.getEmpfName());
                    System.out.println("The Employee First Name is : "+empinfo.getEmpfName());
                    System.out.println("The Employee Last Name is : "+empinfo.getEmplName());
                    System.out.println("The Employee Age is : "+empinfo.getEmpAge());
                    System.out.println("The Employee Salary is : "+empinfo.getEmpSalary());
               connection.commit();
          } catch (SQLException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
//This is my info object
package com.java.jdbc.info;
public class EmployeeInfo {
     private String empId;
     private String empfName;
     private String emplName;
     private String empAge;
     private String empSalary;
     public String getEmpAge() {
          return empAge;
     public void setEmpAge(String empAge) {
          this.empAge = empAge;
     public String getEmpfName() {
          return empfName;
     public void setEmpfName(String empfName) {
          this.empfName = empfName;
     public String getEmpId() {
          return empId;
     public void setEmpId(String empId) {
          this.empId = empId;
     public String getEmplName() {
          return emplName;
     public void setEmplName(String emplName) {
          this.emplName = emplName;
     public String getEmpSalary() {
          return empSalary;
     public void setEmpSalary(String empSalary) {
          this.empSalary = empSalary;
//This is my Controller class:
package com.java.jdbc.controller;
import com.java.jdbc.DB.EmployeeDB;
import com.java.jdbc.info.EmployeeInfo;
public class EmployeeController {
     public static void main(String args[])
          EmployeeDB empdb = new EmployeeDB();
          EmployeeInfo emp = new EmployeeInfo();
          empdb.select(emp);     
// I got these errors:
java.sql.SQLException: Io exception: Got minus one from a read call
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:156)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
     at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:210)
     at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
     at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
     at java.sql.DriverManager.getConnection(Unknown Source)
     at java.sql.DriverManager.getConnection(Unknown Source)
     at com.java.jdbc.util.EmployeeUtil.getconnection(EmployeeUtil.java:18)
     at com.java.jdbc.DB.EmployeeDB.select(EmployeeDB.java:20)
     at com.java.jdbc.controller.EmployeeController.main(EmployeeController.java:11)
Exception in thread "main" java.lang.NullPointerException
     at com.java.jdbc.DB.EmployeeDB.select(EmployeeDB.java:23)
     at com.java.jdbc.controller.EmployeeController.main(EmployeeController.java:11)

Answer 1

Are you using Oracle 10.2 in shared server configuration under Windows?
If so it's a driver bug (BUG - Connection pooling with 10g 10.1.3 Preview 4 App Server Oracle suggest to use OCI driver.