AbstractMethodError

[nitishjtm]

Hi, I have written the following servlet:

package com.nitish.servlets;
import javax.servlet.*;
import java.io.*;
import java.sql.*;
import javax.sql.*;
import oracle.sql.*;

public class RequestServlet extends GenericServlet{
	public void init(ServletConfig sc)throws ServletException{
		try{
			Class.forName("oracle.jdbc.driver.OracleDriver");
		}//try
		catch(Exception e){
			throw new ServletException("Unable to load the driver");
		}//catch
	}//init
	public void service(ServletRequest req,ServletResponse res)throws ServletException,IOException{
		String name=req.getParameter("name");
		String college=req.getParameter("college");
		String university=req.getParameter("university");
		String contactno=req.getParameter("contactno");
		String[] course=req.getParameterValues("Course");
		String photo=req.getParameter("photo");
		byte []b=photo.getBytes();
		//ByteArrayInputStream bis=new ByteArrayInputStream(b);
		Blob b1=new SerialBlob(b);
		PrintWriter out =res.getWriter();
		Connection con=null;
		PreparedStatement ps=null;
        try{
			con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","system","nitish");
			ps=con.prepareStatement("insert into stenquiry values(?,?,?,?,?)");
			ps.setString(1,name);
			ps.setString(2,college);
			ps.setString(3,university);
			ps.setString(4,contactno);
			ArrayDescriptor ad=ArrayDescriptor.createDescriptor("COURSEARRAY",con);
			ARRAY a=new ARRAY(ad,con,course);
			ps.setArray(5,a);
			ps.setBlob(6,b1);
			//ps.setBlob(6,bis);
                        ps.executeUpdate();
			out.println("Records Inserted Successfully");
		}//try
		catch(Exception e){}
		finally{
			try{
				ps.close();
				con.close();
			}//try
			catch(Exception e){
				e.printStackTrace();
			}//catch
		}//finally
	}//service
}//class

The problem I am facing is when I tried to compile the code, it gave me error saying that cannot find symbol:SerialBlob(); , while I have set the classpath for ojdbc14.jar prior to compilation.

And instead of using blob object in setBlob(), I also tried to use input stream. It compiled successfully, but when I executed the program, it gave me error as follows:

java.lang.AbstractMethodError: oracle.jdbc.driver.T4CPreparedStatement.setBlob(IL java/io/InputStream;)V
com.stech.servlets.RequestServlet.service(RequestS ervlet.java:40)
I am not getting why is this happening.

[Tolls]

You haven't imported SerialBlob.
Don't rely on using '*' to pick everything up. It's lazy.
It also doesn't pick up sub-packages.

Anyway, it should work with the InputStream.
Show us the code for using the InputStream.