JDBC,Oracle - java.lang.ClassNotFoundException: oracle.jdbc.driver.Oracle

Question

I am using JBuilder5 which comes with jdk1.3. I have installed oracle 8.1.7 Enterprise version.
I am using Win NT 4.0.
I have set the PATH variable as E:\oracle\ora81\lib; and
CLASSPATH as : E:\oracle\ora81\jdbc\lib\classes12.zip;E:\oracle\ora81\jdbc\lib\nls_charset12.zip;
My JDBC code is
package sample2;
import java.sql.*;
public class Two {
Connection con;
Statement st;
public Two() {
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("jdbc:oracle:oci8:@First","scott","tiger");
st = con.createStatement();
ResultSet rs = st.executeQuery("Select * from Book");
while(rs.next())
System.out.print(rs.getInt("ID")+"\t");
System.out.print(rs.getString("title")+"\t");
System.out.print(rs.getString("author")+"\t");
System.out.print(rs.getString("subject")+"\t");
System.out.println(rs.getInt("copies")+"\t");
st.close();
con.close();
catch(Exception ex)
System.out.println("Exception : " + ex.toString());
public static void main(String[] args) {
Two two1 = new Two();
I am getting this exception:
Exception : java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
I can understand that the classpath for the driver is the problem here.
Also, I tried to run this file without JBuilder as a independent file on a notepad. Even then this exception is thrown.
I have set the PATH to E:\oracle\ora81\bin and also to E:\oracle\ora81\lib.
I ran "echo %classpath%" from my command prompt and this is what i am getting.
E:\JBuilder5\jdk1.3\lib\tools.jar;E:\JBuilder5\jdk1.3\dt.jar;E:\oracle\ora81\jdbc\lib\classes12.zip;E:
\oracle\ora81\jdbc\lib\nls_charset12.zip;
I searched solution for this probldem in Sun JDC Forum itself. Many of them suggested to unzip classes12.zip and create jar file and add it in the classpath. Alos, some have suggested to copy the classes12.zip in home directory and then include this path in the classpath. I tried those solutions also. But, nothing seem to work.
Somebody help me fix this problem.
Thanks in advance.

Answer 1

Jbuilder5 uses a different means of loading dependent classes. Use menu : Tools -->Configure Libraries - Click New and setup a new named library that points to classes12.zip .
Then include this in u'r required Libraries of your project using menu Project --> Project Properties - required Libraries tab.
I don't thnk Jbuilder5 even refers to CLASSPATH set in Windows NT environement. Path may need to be set to include oracle/ora81/bin directory though.
Hope this helps.