Duplicate class definition: oracle/jdbc/driver/OracleDriver

Hi
I using Jdeveloper 10.1.3.3 and I tried to add jdbc driver version 11.1.0.6.0 to Project by add Library to the project property. And I tried to run my application when step to connect database the program will occur the error.
This below is the error
500 Internal Server Error
oracle.classloader.util.AnnotatedLinkageError: duplicate class definition: oracle/jdbc/driver/OracleDriver
     Invalid class: oracle.jdbc.driver.OracleDriver
     Loader: current-workspace-app.root:0.0.0
     Code-Source: /D:/oracle/jdbc/11/ojdbc5.jar
     Configuration: <library> in /D:/Jdev10133/jdev/mywork/Trainning/Trainning-oc4j-app.xml
     Dependent class: java.sql.DriverManager
     Loader: jre.bootstrap:1.5.0_06
     Code-Source: unknown
     Configuration: jre bootstrap
     at oracle.classloader.PolicyClassLoader.findLocalClass (PolicyClassLoader.java:1462) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.SearchPolicy$FindLocal.getClass (SearchPolicy.java:167) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.SearchSequence.getClass (SearchSequence.java:119) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.SearchPolicy.loadClass (SearchPolicy.java:645) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.PolicyClassLoader.askParentForClass (PolicyClassLoader.java:1289) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.SearchPolicy$AskParent.getClass (SearchPolicy.java:68) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.SearchSequence.getClass (SearchSequence.java:119) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.PolicyClassLoader.internalLoadClass (PolicyClassLoader.java:1674) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.java:1635) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.java:1620) [D:/Jdev10133/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@17332331]     at java.lang.ClassLoader.loadClassInternal (ClassLoader.java:319) [jre bootstrap, by jre.bootstrap:1.5.0_06]     at java.lang.Class.forName0 (Native method) [unknown, by unknown]     at java.lang.Class.forName (Class.java:242) [jre bootstrap, by jre.bootstrap:1.5.0_06]     at java.sql.DriverManager.getCallerClass (DriverManager.java:442) [jre bootstrap, by jre.bootstrap:1.5.0_06]     at java.sql.DriverManager.getConnection (DriverManager.java:519) [jre bootstrap, by jre.bootstrap:1.5.0_06]     at java.sql.DriverManager.getConnection (DriverManager.java:171) [jre bootstrap, by jre.bootstrap:1.5.0_06]     at com.util.Util.getConnection (Util.java:14) [D:/Jdev10133/jdev/mywork/Trainning/DBProgramming/classes/ (from <classpath> in D:\Jdev10133\jdev\mywork\Trainning\DBProgramming\public_html), by current-workspace-app.web.dbprogram:0.0.0]     at com.blob.BLOBTest.uploadFileToDB (BLOBTest.java:37) [D:/Jdev10133/jdev/mywork/Trainning/DBProgramming/classes/ (from <classpath> in D:\Jdev10133\jdev\mywork\Trainning\DBProgramming\public_html), by current-workspace-app.web.dbprogram:0.0.0]     at com.upload.doPost (upload.java:28) [D:/Jdev10133/jdev/mywork/Trainning/DBProgramming/classes/ (from <classpath> in D:\Jdev10133\jdev\mywork\Trainning\DBProgramming\public_html), by current-workspace-app.web.dbprogram:0.0.0]     at javax.servlet.http.HttpServlet.service (HttpServlet.java:763) [D:/Jdev10133/j2ee/home/lib/servlet.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by api:1.4.0]     at javax.servlet.http.HttpServlet.service (HttpServlet.java:856) [D:/Jdev10133/j2ee/home/lib/servlet.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by api:1.4.0]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.ServletRequestDispatcher.invoke (ServletRequestDispatcher.java:713) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.ServletRequestDispatcher.forwardInternal (ServletRequestDispatcher.java:370) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.doProcessRequest (HttpRequestHandler.java:871) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.processRequest (HttpRequestHandler.java:453) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.serveOneRequest (HttpRequestHandler.java:221) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run (HttpRequestHandler.java:122) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run (HttpRequestHandler.java:111) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run (ServerSocketReadHandler.java:260) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run (ReleasableResourcePooledExecutor.java:303) [D:/Jdev10133/j2ee/home/lib/oc4j-internal.jar (from <code-source> in META-INF/boot.xml in D:\Jdev10133\j2ee\home\oc4j.jar), by oc4j:10.1.3]     at java.lang.Thread.run (Thread.java:595) [jre bootstrap, by jre.bootstrap:1.5.0_06]
Please help to suggest me. How should I do to let out this error?
Thanks

many people use the two interchangeably, though technically it can mean something different.
What you get back from a call to newInstance() is the same as what you'd get when using the new keyword and no constructor arguments, a reference to an instance of a class (there are other ways to dynamically create an instance using other constructors).
"Creating a class object" technically means loading the class which causes a Class instance (so an instance of the class Class) to be created for that particular class, making the class available to the JVM for instantiation of instances.
newInstance() and its sisters are useful for when the class to be instantiated is not known (or even doesn't exist) when compiling the class that needs to instantiate it.
This is of course the case with JDBC. The people creating the JVM can't know what driver classes will be out there at some point in the future (and if they did know and have access to all of them in the past it would still be foolish to have them all hardwired into the JVM).

Similar Messages

Error class not found with Class.forName("oracle.jdbc.driver.OracleDriver")

sorry Got the solution...!!!!
Hi
I am trying to connect to oracle database on the server, oracle client installed on working m/c, I have placed classes111.zip (from oracle 8) in jdk1.1.8demojrelibext folder and I have set the classpath to the ext folder. The code
try
Class.forName("oracle.jdbc.driver.OracleDriver");
catch(Exception e)
when I run this code , error as
[[ java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver ]]
Please reply what are settings I should to to load this oracle driver,
Thanks
Mayank
Message was edited by:
user560333

I currently have this same problem. How did you solve yours see my post Cant find suitable driver.

JDBC driver - Class oracle.jdbc.driver.OracleDriver not found.

Greetings:
When I tried to compile an test script (as attached below) to test the driver, I always ended up with the following error message:
....java:17: Class oracle.jdbc.driver.OracleDriver not found.
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Could somebody shine some light on it? I would very much appreciate it.
By the way, I have an Oracle DBMS (8.1.7) with jre1.1.7. My Java is jdk1.2 and the driver is ocijdbc8.dll
Wil
*************** The test script *************
import java.sql.*;
class Users
public static void main (String args [])
throws SQLException, ClassNotFoundException
// Load the Oracle JDBC driver
Class.forName ("oracle.jdbc.driver.OracleDriver");
// Connect to the database
// You can put a database name after the @ sign in the connection URL.
Connection conn =
DriverManager.getConnection ("jdbc:oracle:oci8:@US10", "QM24202E", "QM24202E");
// Create a Statement
Statement stmt = conn.createStatement ();
// Select ... table
ResultSet rset = stmt.executeQuery ("select USERID from USERS");
// Iterate through the result and print the ... names
while (rset.next ())
System.out.println (rset.getString (1));

check out what thomas Fly wrote on another discussion forum about connection with JDBC, i tried it and i haven't gotten it
to work yet but at least i don't have the "... not found" error,
you should try it too, and i think it's good to tell you that i
still haven't installed the oracle client on my windows Me PC.
Hope this help you
This may help also... I have Oracle installed on a Linux PC at 192.168.1.4 on my LAN, listening on port 1521. I can connect from another PC (Linux / Windows ME dual boot, though running Windows at the time of this experiment) using the following program:
import java.sql.*;
public class sqlLookup {
public static void main(String[] args) throws SQLException, ClassNotFoundException {
String dbUrl = "jdbc:oracle:thin:@192.168.1.4:1521:ORA8";
String user = "thomasfly";
String password = "maverick";
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection c = DriverManager.getConnection(dbUrl, user, password);
Statement s = c.createStatement();
// SQL code:
ResultSet r = s.executeQuery("select * from members");
while(r.next()) {
// Capitalization doesn't matter:
System.out.println(r.getString("Name") + ", " + r.getString("id") + ": " + r.getString("email") );
s.close(); // Also closes ResultSet
I downloaded classes12.zip for Oracle 8.1.7 and put it into the C:\Windows directory, and mounted C:\Windows\classes12.zip in Forte for Java (equivalent to adding it to the classpath if I were running the program from a DOS window, rather than in Forte).
ORA8... capitalization may be important... is the name of my database, which may be found in the tnsnames.ora file in $ORACLE_HOME/resources.
The query gets the Name, id, and email fields from the table "members" in the database.
This is just a barebones program, and each time it's run, the Oracle listener has to be stopped and restarted before the program can be successfully run again.

Javax.servlet.ServletException: oracle.jdbc.driver.OracleDriver

Hi.
I've got this piece of code into a servlet:
<%@page language="java" import="java.sql.*"%>
<%
Driver DriverRecordset1 = (Driver)Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
Connection Conn = DriverManager.getConnection("jdbc:oracle:thin:@myserver:1521:SID","system","manager");
When starting Tomcat, I included into startup.bat:
set CLASSPATH=%CLASSPATH%;d:\orant\jdbc\classes102.zip (it exists)
But when executing the code, I get this error message:
javax.servlet.ServletException: oracle.jdbc.driver.OracleDriver
What am I doing wrong?
Thank you very much.

The whole message:
javax.servlet.ServletException: oracle.jdbc.driver.OracleDriver
     at org.apache.jasper.runtime.PageContextImpl.handlePageException(Unknown Source)
     at mypage_1._jspService(mypage_1.java:112)
     at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java)
     at org.apache.tomcat.facade.ServletHandler.doService(Unknown Source)
     at org.apache.tomcat.core.Handler.invoke(Unknown Source)
     at org.apache.tomcat.core.Handler.service(Unknown Source)
     at org.apache.tomcat.facade.ServletHandler.service(Unknown Source)
     at org.apache.tomcat.core.ContextManager.internalService(Unknown Source)
     at org.apache.tomcat.core.ContextManager.service(Unknown Source)
     at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Unknown Source)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(Unknown Source)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Unknown Source)
     at java.lang.Thread.run(Thread.java:484)
================
If I write only:
Class.forName("oracle.jdbc.driver.OracleDriver");
I get the same error.

Error : java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver

Hi,
I am writing an application and am trying to open a connection to Oracle database that is on a server. I am using the following test code to check if it connects to the database.
import java.sql.*;
class dbAccess {
public static void main (String args []) throws SQLException
        String DBurl = "jdbc:oracle:thin:@local:1522:DBORA";
        String user = "test";
        String pwd = "test123";
        Class.forName("oracle.jdbc.driver.OracleDriver");
        con = DriverManager.getConnection(DBurl, user, pwd);
}On running the above program I keep on getting the following error:
Error : java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
java.lang.NullPointerException
If I open the connection using JDeveloper wizard I can see the DB. But if running the above program in the JDev, JCreator or commandline keep on getting the error. Any help is appreciated. Thanks

How do I set the path for the Oracle Driver. ThanksI dunno. You're supposed to know where that class is (what jar it lives in). You set it up in JDeveloper in the first place, so you must have known where it is. After you know that, it's up to you to figure out how JCreator projects are set up to include jars in a project (just like JDeveloper projects do). For the command-line way, you set the classpath on the command-line arguments:
java -cp (your classpath here, which must include the jars it needs) ...

IPlanet Web Server gives classnot found "oracle.jdbc.driver.OracleDriver "

I have installed iplaet web server 6 eval. copy on red hat linux 6.2 , oracle 8i 8.1.6 having default classpath with
/usr/local/jdk1.2.2:/usr/local/jsdk.jar:/usr/local/jdk1.2.2/oracle.jar
when we run a servlet it gives classnot found "oracle.jdbc.driver.OracleDriver "
Any one can give me where to place oracle.jar or how to overcome from this error
the code is
import java.util.*;
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import oracle.jdbc.driver.*;
* This is a simple example of an HTTP Servlet. It responds to the GET
* and HEAD methods of the HTTP protocol.
public class Hello2 extends HttpServlet
public void doGet (HttpServletRequest request,HttpServletResponse response) throws ServletExc
eption, IOException
PrintWriter out;
String title = "12Example iPlanet JServ Servlet";
response.setContentType("text/html");
out = response.getWriter();
Statement stmt=null;
ResultSet rs=null;
Connection con;
out.println("<H2> iPlanet is working!!</H2>");
try
// String url = "jdbc:oracle:thin:@80.0.0.2:1521:sahara";
// Class.forName("oracle.jdbc.driver.OracleDriver");
con=DriverManager.getConnection("jdbc:oracle:thin:@(description=(address=(host=80
.0.0.2)(protocol=tcp)(port=1521))(connect_data=(sid=star)))","zigma","zigma");
// con = DriverManager.getConnection(url, "rahul", "rahul");
String sQuery2="select zrsbname from zrsbmast where zrsbcode=9999";
stmt=con.createStatement();
rs = stmt.executeQuery(sQuery2);
rs.next();
/*String sQuery="{call shift20()}";
cstmt=con.prepareCall(sQuery);
cstmt.executeQuery(); */
out.println("<HTML><HEAD><TITLE>");
out.println(title);
out.println("</TITLE></HEAD><BODY bgcolor=\"#FFFFFF\">");
out.println("<H1>"+iCount+"</H1>");
out.println("<H1>" + title + "</H1>");
out.println("<H2> Congratulations, iPlanet is working!1<br>");
out.println("</BODY></HTML>");
out.close();
catch(SQLException e1)
out.println("<p> Error in ");
out.println("<p> Errmsg="+ e1.getMessage());
catch(Exception e)
out.println("<p> Error in ");
out.println("<p> Errmsg="+ e.getMessage());

you must be having an administrative console for iplanet
there the classpath can be set to the required location
Open the Administrative console for it..

Unable to load oracle.jdbc.driver.OracleDriver class

i want to connect my java application with oracle database but i m getting an error -"class not found exception oracle.jdbc.driver.OracleDriver " which is written in Class.forName() to register the driver for DriverManager.
plz help me..

This is an old class, not included with the JDK anymore. It was made obsolete by
DataSource which is a connection pool and not a single connection.

Class Not found : oracle.jdbc.driver.OracleDriver when calling web service

Hi,
I have installed the Oracle Data Integrator Public Web Services on Apache Tomcat 5.5 application server with Apache Axis2
When I try to call the web service OdiInvoke using the operation "listScenario" using only the JdbcDriver as input parameter, the response I get back from the web service call is:
java.lang.ClassNotFoundException: Class Not found : oracle.jdbc.driver.OracleDriver
Using the operator "getWebServiceVersion" I get a successfull response back som the connection seems fine.
Obviously the error has to do with the driver not beeing available but where should I put the driver? Or how do I make it available? When working from Topology Manager, all connections are fine.
Best regards
M

Solved it on my own by putting ojdbc14.jar in the following directory: <Apache-Tomcat install dir>/webapps/axis2/WEB-INF/lib/
Thought I'd share in case some one else has same issue
/M

Class Not Found: JDBC driver oracle.jdbc.driver.OracleDriver

Does anyone can help?
When I install the OpenBravo, I get the error shown below:
Class Not Found: JDBC driver oracle.jdbc.driver.OracleDriver could not be loaded.
I am using the Oracle XE, jdk1.5.0_06, Apache Tomcat 5.5.17.

include the jar file classes111.jar in your classpath, it will work
The location would be like
C:\Applns\oracle9204\jdbc\lib\classes111.jar;
set the classpath with this jar in command prompt
set CLASSPATH=%CLASSPATH%;C:\Applns\oracle9204\jdbc\lib\classes111.jar;

Oracle.jdbc.driver.OracleDriver cannot be found !

Hi,
I'm using VisualAge 4.0 and WebSphere Application Server 3.5.5
I have an error when i execute my application (with java -jar myapp.jar) :
"Impossible to find jdbc driver class oracle.jdbc.driver.OracleDriver which has been specified"
I have installed an Oracle driver in WebSphere, so what is the problem ??
It's working very well if i start my application in VisualAge
Thanks in advance
Steve

If you use the -jar Option with your application No classpath setting is used. Either place the classes12.zip in the ext directory or class your application without the -jar option.
See also:
http://java.sun.com/j2se/1.3/docs/tooldocs/win32/java.html#options
Uwe

Oracle.jdbc.driver.OracleDriver

Hi,
i am new webservice. i had develop the one webservice example. in this example i am retrieving the data from the database and retreive it as string format(all the rows). when i am calling the webseriveclient as passing the parameter query as string , its giving the error. while i am calling the same from the main method its coming fine.
the error is
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1340)
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:140)
     at com.hcl.test.webservice.HelloService.getAccounts(HelloService.java:36)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:388)
     at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:283)
     at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
     at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
     at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
     at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
     at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:453)
     at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
     at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
     at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
     at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
     at java.lang.Thread.run(Thread.java:536)
i already added the classes111.jar file in tomcat lib as well as jdk lib. still its givng the same error.....
what can i do to solve this problem
regards
ram

The class is present in the classes12.jar file. Add that to your classpath.
cheers,
vidyut

Web Server 6.1 and ClassNotFoundException: oracle.jdbc.driver.OracleDriver

I am trying to set up the Oracle jdbc on Sun ONE Web Server Enterprise Edition 6.1 but do not seem to be having any luck. It seems that OCI and thin fails.
I have installed the Oracle client in the folder c:\oracle\ora92. I have selected the following items to install in the Oracle client: Oracle 9i Client 9.2.0.1.0, Common files, JDBC/OCI, JDBC/Thin, and Internet Directory Client. (I then downloaded ojdbc14.jar and placed it in jdbc\lib folder.)
I am seeing the following error: ClassNotFoundException: oracle.jdbc.driver.OracleDriver
From the following web page:
<code>
<%@page language="java"
import="java.sql.*,
oracle.jdbc.driver.*,
oracle.sql.*
"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>
Hello World
</title>
</head>
<body>
<%
//connections to ops2
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection("jdbc:oracle:oci8:@wydot-ops2","username","password");
Statement stmt = conn.createStatement();
ResultSet rset = null;
rset = stmt.executeQuery("SELECT AGENCY_NUMID,AGENCY_NAME FROM flightsch.state_agencies ORDER BY agency_name");
while(rset.next())
String ag_name = rset.getString("agency_name");
%>
<%= ag_name%>
<%
} //end of while loop
rset.close();
stmt.close();
conn.close();
%>
</body>
</html>
</code>
I have made the following entries into the Sun One Administration pages:
Java Tab
JVM path Settings
Classpath suffix = c:\oracle\ora92\jdbc\lib
Ignore Env Class Path = on
Native Lib Path Prefix = c:\j2sdk1.4.2_02\lib
Native Lib Path Suffix =
JDBC Connection Pools
Pool = jdbc-oracle-pool
DataSource Classname = oracle.jdbc.pool.Oracle.DataSource
URL = wydot-ops2
User = username
Password = password
(Rest of items = defaults)

oracle.jdbc.driver.OracleDriver is deprecated, you may be having an issue with that. Try oracle.jdbc.OracleDriver instead.
Typically you don't need to registerDriver, just load the classes:
Class.forName("oracle.jdbc.OracleDriver");
WEB-INF/lib is the correct place to place application jar files, it is part of the automatic CLASSPATH for typical containers.

Java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver

When I run java servlet test_ora.java with IE6.0 I get the following error page:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Servlet execution threw an exception
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2349)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:376)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:518)
     at java.lang.Thread.run(Thread.java:536)
root cause
java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver
     at test_ora.doGet(test_ora.java:21)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2349)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:376)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:518)
     at java.lang.Thread.run(Thread.java:536)
Java Web Services Developer Pack/1.0-fcs
I thought it is about JDBC configuration. But when I run JdbcCheckup.java everything works fine. Can anybody help me, please?
test_ora.java looks like this:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class test_ora extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
String str_dok_numer, str_f_inkraft;
int int_dok_wal_id;
Connection conn=null;
Statement s = null;
response.setContentType("text/html;charset=iso-8859-2");
PrintWriter out = response.getWriter();
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
conn = DriverManager.getConnection(
"jdbc:oracle:thin:@192.168.15.2:1521:DB2","janusz","kimono");
s = conn.createStatement();
} catch (SQLException e) {
out.println("Blad polaczenia z baza danych: " + e.getMessage());
try {
ResultSet r =s.executeQuery("select dok_numer, f_inkraft, dok_wal_id from gndlf_umowy_inkraft");
out.println("DOK_NUMER\tF_INKRAFT\tDOK_WAL_ID");
while(r.next()){
out.println (r.getString (1) +"\t" + r.getString (2) + "\t" +r.getString (3));
conn.close();
} catch (Exception e) {
out.println("Wystapil problem z wyslaniem SQL do bazy danych: " + e.getMessage());
finally {
try { conn.close(); }
catch(SQLException e) {}
and here is code for JdbcCheckup.java (I get it from Internet and made some modifications):
* This sample can be used to check the JDBC installation.
* Just run it and provide the connect information. It will select
* "Hello World" from the database.
// You need to import the java.sql package to use JDBC
import java.sql.*;
// We import java.io to be able to read from the command line
import java.io.*;
class JdbcCheckup {
public static void main(String args[])
throws SQLException, IOException
// Load the Oracle JDBC driver
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
// Prompt the user for connect information
System.out.println("Please enter information to test connection to the database");
String user;
String password;
String database;
user = readEntry("user: ");
int slash_index = user.indexOf('/');
if (slash_index != -1)
password = user.substring(slash_index + 1);
user = user.substring(0, slash_index);
else
password = readEntry("password: ");
database = readEntry("database(a TNSNAME entry): ");
System.out.print("Connecting to the database...");
System.out.flush();
System.out.println("Connecting...");
//Connection conn = DriverManager.getConnection("jdbc:oracle:oci8:@" + database, user, password);
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.15.2:1521:" + database, user, password);
System.out.println("connected!!!");
// Create a statement
Statement stmt = conn.createStatement();
// Do the SQL "Hello World" thing
ResultSet rset = stmt.executeQuery("select 'Hello World' from dual");
while (rset.next())
System.out.println(rset.getString(1));
// close the result set, the statement and connect
rset.close();
stmt.close();
conn.close();
System.out.println("Your JDBC installation is correct.");
// Utility function to read a line from standard input
static String readEntry(String prompt)
try
StringBuffer buffer = new StringBuffer();
System.out.print(prompt);
System.out.flush();
int c = System.in.read();
while (c != '\n' && c != -1)
buffer.append((char)c);
c = System.in.read();
return buffer.toString().trim();
catch(IOException e) {
return "";
I use Java Web Service Developer Pack 1.0 on Win98 SE, database Oracle 8.1.7 is installed on dedicated IBM server (AIX 4.x).
I put these lines in autoexec.bat:
set PATH=C:\Perl\bin\;"C:\j2sdk1.4.0\bin";%PATH%
set CLASSPATH=.;C:\j2sdk1.4.0\lib\tools.jar;C:\j2sdk1.4.0\lib\classes12.zip;C:\j2sdk1.4.0\lib\classes111.zip;%CLASSPATH%
set CLASSPATH=C:\jwsdp_1_0\common\lib\servlet.jar;C:\jwsdp_1_0\common\lib\jasper-compiler.jar;C:\jwsdp_1_0\common\lib\jasper-runtime.jar;%CLASSPATH%
set JAVA_HOME=C:\j2sdk1.4.0

I have the same problem. I created a JSP page that uses a class to retrieve database information. I added a main method to the class so I would be able to test it. When I test the class using the main method the method returns all the information from the database. When I try it using Tomcat, I get the following error: java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver
Does anyone have an idea of what is going on?
My CLASSPATH configuration is the same.

Oracle.jdbc.driver.OracleDriver() problem

Hi guys. I am taking a dbsystems class at school. We are required to connect to the schools oracle db using this package: oracle.jdbc.driver
the code provided by the profesor is meant to be used by logging into unix accounts on the schools servers and running our java programs remotely. I've been trying to connect by running the java program localy.
i'm using netbeans 4, with java5. netbeans tells me that this oracle.jdbc.driver package doesn't exist.
here is the connection part of the code:
//create the oracle driver
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//create a connection object
Connection conn = DriverManager.getConnection("jdbc:oracle:oci:@<blahblahblah>", "<myusername>", "<mysuperduperprivatepassword>");
I have followed many forums and threads on the web. Most of them seem to be fixed just by renaming the classes12.zip file to .jar, placing them in the jre/lib folder and setting the path, but they all seem to be running the java program on the same computer as the database, where as i'm trying to connect remotely. i still tried following the instructions, and this still hasn't worked for me. so, my question is, will this even work since i am trying to connect remotely? and if not, how can i connect remotely to a database using only java? thanks
gyro

when you say build path, do u mean the same folder as my .java source? because it is. I don't know if u need to know this, but it will compile, but not run, and then it will print the above mentioned error. but in netbeans, it just tells you ahead of time why it wont run if u try to run it.
anyways, from what i understand from what u wrote, i will need to use the thin driver...now that comes with the oracle.jdbc.driver package, but i just need to use a different call, right? like, instead of oracle.jdbc i would need oracle.thin, is this what u mean? and if it doesn't contain the thin driver, where can i find it? i found it onces before, but that was completely by accident. can someone supply a url? thanks
jay

SchemaTool() throws ClassNotFoundException: oracle.jdbc.driver.OracleDriver

KODO 2.5.3
I am trying to use the SchemaTool java class for schema manipulations. When
I try to construct a SchemaTool object I get the following exception:
com.solarmetric.kodo.runtime.FatalUserException:
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
NestedThrowables:
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
I am passing an instance of MultiLoaderClassResolver (constructed using a
custom URLClassLoader) as the ClassResolver argument to the SchemaTool
constructor. The orcale jar "classes12.jar" is one of the URLs in the
URLClassResolver. Before constructing a SchemaTool object, a call to
canResolveClass("oracle.jdbc.driver.OracleDriver") on the class resolver
returns true. So why is SchemaTool not able to find this class?
Thanks
Vijay

Marc,
It might well be problems with my custom class loader (which are a pain to
debug indeed) or my lack of understanding of some of your schema tool
classes, but the basic problem I encountered (before getting to the Logger
issue) is as follows:
I have an instance of MultiLoaderClassResolver constructed using my custom
class loader.
A call to resolveClass("orcale.jdbc.driver.OrcaleDriver") on this instance
returns the correct Class (does not throw a ClassNotFound exception).
The same MultiLoaderClassResolver instance is passed as an argument to
SchemaTool(). SchemaTool.refresh() throws an exception:
ClassNotFound: orcale.jdbc.driver.OrcaleDriver
So it seems to me that somewhere in the SchemaTool code you are trying to
resolve orcale.jdbc.driver.OrcaleDriver using something other than the
instance of MultiLoaderClassResolver that I passed in. From the stack trace
in my earlier message, it seems like that is happening in:
com.solarmetric.kodo.impl.jdbc.ormapping.ClassMapping.createPKColumns(ClassM
apping.java:1584)where an instance of ConfigurationConnector is constructed. BTW, this is how
I construct and pass a ConfigurationConnector to SchemaTool:
JDBCConfiguration conf = new JDBCSimpleConfiguration(someProps);
ClassResolver resolver = new MultiLoaderClassResolver(myCustomClassLoader);
Connector connector = new ConfigurationConnector(conf, resolver, false);
SchemaTool sTool = new SchemaTool(conf, resolver, connector);
Vijay
"Marc Prud'hommeaux" <[email protected]> wrote in message
news:[email protected]...
Vijay-
Custom ClassLoader problems are often very hairy to debug. The first
error message you are receiving indicates a problem:
org.apache.commons.logging.LogConfigurationException: Class
org.apache.commons.logging.impl.Log4JLogger does not implement LogThis indicates to me that the
"org.apache.commons.logging.impl.Log4JLogger" and
"org.apache.commons.logging.Log" classes are being loaded in different
ClassLoaders, which is generally a bad thing. Is your URLClassLoader
deferring to the parent ClassLoader?
I think that the first step is to identify why the class loaders are
different for these two classes (which should be easy to do with some
printlns in a test program that uses your URLClassLoader).
Bear in mind that this isn't technicall a Kodo issue, but a general
ClassLoader issue. However, we are happy to try to provide hints and
guidance about how to isolate the source of the problem.
In article <[email protected]>, Vijay Ganesan wrote:
After trying out some combinations, the stack trace at the bottom of
this
message gives a better clue of what my problem is:
Looks like a new ConfigurationConnector is created in ClassMapping.javathat
ignores my class resolver (based on my custom class loader) that Icreated
as follows:
JDBCConfiguration conf = new JDBCSimpleConfiguration(someProps);
ClassResolver resolver = newMultiLoaderClassResolver(myCustomClassLoader);
>>
Connector connector = new ConfigurationConnector(conf, resolver, false);
SchemaTool sTool = new SchemaTool(conf, resolver, connector);
Adding the following line before the schema related code solves theproblem:
Thread.currentThread().setContextClassLoader(myCustomClassLoader);
However, that causes another error which, from a brief look at
LogFactoryImpl, seems surely related to custom class loaders. Don't knowhow
to get past this one:
org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: Class
org.apache.commons.logging.impl.Log4JLogger does not implement Log
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.ja
va:532)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.ja
va:272)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:414)
at
com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.createConnecti
onFactory(ConfigurationConnector.java:140)
--------Stack trace------------
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
at
com.solarmetric.util.classes.LoaderClassResolver.resolveClass(LoaderClassRes
olver.java:34)
at
com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.createConnecti
onFactory(ConfigurationConnector.java:113)
at
com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.<init>(Configu
rationConnector.java:67)
at
com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.<init>(Configu
rationConnector.java:59)
at
com.solarmetric.kodo.impl.jdbc.runtime.ConfigurationConnector.<init>(Configu
rationConnector.java:39)
at
com.solarmetric.kodo.impl.jdbc.ormapping.ClassMapping.createPKColumns(ClassM
apping.java:1584)
at
com.solarmetric.kodo.impl.jdbc.ormapping.ClassMapping.install(ClassMapping.j
ava:1416)
at
com.solarmetric.kodo.impl.jdbc.ormapping.Mapping.createMapping(Mapping.java:
169)
at
com.solarmetric.kodo.impl.jdbc.ormapping.Mapping.createMappings(Mapping.java
:116)
at
com.solarmetric.kodo.impl.jdbc.ormapping.Mapping.createMappings(Mapping.java
:86)
at
com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.createMappings(SchemaTool.j
ava:831)
at
com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.refresh(SchemaTool.java:333
at
com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.refresh(SchemaTool.java:321
at
com.solarmetric.kodo.impl.jdbc.schema.SchemaTool.refresh(SchemaTool.java:311
"Stephen Kim" <[email protected]> wrote in message
news:[email protected]...
My guess is that your custom classloader is preventing instanceof. Can
you try using the system classloader or see if java.sql.Driver is
assignable from oracle.jdbc.dirver.OracleDriver?
Vijay Ganesan wrote:
KODO 2.5.3
I am trying to use the SchemaTool java class for schema
manipulations.
When
I try to construct a SchemaTool object I get the following exception:
com.solarmetric.kodo.runtime.FatalUserException:
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
NestedThrowables:
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
I am passing an instance of MultiLoaderClassResolver (constructed
using
a
custom URLClassLoader) as the ClassResolver argument to the
SchemaTool
constructor. The orcale jar "classes12.jar" is one of the URLs in the
URLClassResolver. Before constructing a SchemaTool object, a call to
canResolveClass("oracle.jdbc.driver.OracleDriver") on the classresolver
returns true. So why is SchemaTool not able to find this class?
Thanks
Vijay
Steve Kim
[email protected]
SolarMetric Inc.
http://www.solarmetric.com
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com

Duplicate class definition: oracle/jdbc/driver/OracleDriver

Similar Messages

Maybe you are looking for