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.

Similar Messages

Help - Could not load 'oracle.jdbc.driver.OracleDriver ...

I'm using oci8 to connect to the Oracle database.
URL: jdbc:oracle:oci8:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(PORT=1527)(HOST=testhost)))(CONNECT_DATA=(SID=fnoe2pa)))
When I tried to start the weblogic server, I got the following errors:
Can you suggest what I should do next (step-wise)??? Thanks, Bobby
<Sleeping in createResource()>
####<15/08/2002 14:09:43> <Error> <JDBC> <qawebmethods> <myserver>
<main> <system> <> <001060> <Cannot startup connection pool
"pool/test_myapp" weblogic.common.ResourceException:
Could not load 'oracle.jdbc.driver.OracleDriver
If this is a type-4 JDBC driver, it could occur if the JDBC
driver is not in the system CLASSPATH.
If this is a type-2 JDBC driver, it may also indicate that
the Driver native layers(DBMS client lib or driver DLL)
have not been installed properly on your system
or in your PATH environment variable.
This is most likely caused by one of the following:
1. The native layer SO, SL, or DLL could not be found.
2. The file permissions on the native layer SO, SL, or DLL
have not been set properly.
3. The native layer SO, SL, or DLL exists, but is either
invalid or corrupted.
For more information, read the installation documentation
for your JDBC Driver, available from:
http://e-docs.bea.com
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(ConnectionEnvFactory.java:212)
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(ConnectionEnvFactory.java:134)
     at weblogic.common.internal.ResourceAllocator.makeResources(ResourceAllocator.java:705)
     at weblogic.common.internal.ResourceAllocator.<init>(ResourceAllocator.java:282)
     at weblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.java:650)
     at weblogic.jdbc.common.JDBCService.addDeployment(JDBCService.java:107)
     at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:360)
     at weblogic.management.mbeans.custom.DeploymentTarget.addDeployments(DeploymentTarget.java:285)
     at weblogic.management.mbeans.custom.DeploymentTarget.updateServerDeployments(DeploymentTarget.java:239)
     at weblogic.management.mbeans.custom.DeploymentTarget.updateDeployments(DeploymentTarget.java:199)
     at java.lang.reflect.Method.invoke(Native Method)
     at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
     at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
     at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:360)
     at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
     at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
     at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
     at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
     at $Proxy31.updateDeployments(Unknown Source)
     at weblogic.management.configuration.ServerMBean_CachingStub.updateDeployments(ServerMBean_CachingStub.java:2977)
     at weblogic.management.mbeans.custom.ApplicationManager.startConfigManager(ApplicationManager.java:372)
     at weblogic.management.mbeans.custom.ApplicationManager.start(ApplicationManager.java:160)
     at java.lang.reflect.Method.invoke(Native Method)
     at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
     at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
     at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:360)
     at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
     at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
     at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
     at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
     at $Proxy42.start(Unknown Source)
     at weblogic.management.configuration.ApplicationManagerMBean_CachingStub.start(ApplicationManagerMBean_CachingStub.java:480)
     at weblogic.management.Admin.startApplicationManager(Admin.java:1234)
     at weblogic.management.Admin.finish(Admin.java:644)
     at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:524)
     at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:207)
     at weblogic.Server.main(Server.java:35)
>
####<15/08/2002 14:09:43> <Info> <JDBC> <qawebmethods> <myserver>
<main> <system> <> <001082> <Creating Data Source named
jdbc/test_myapp for pool pool/test_myapp>
####<15/08/2002 14:09:43> <Info> <JDBC> <qawebmethods> <myserver>
<main> <system> <> <001070> <Checking existence of connection pool
pool/test_myapp requested by user system>
####<15/08/2002 14:09:43> <Error> <JDBC> <qawebmethods> <myserver>
<main> <system> <> <001059> <Error during Data Source creation:
weblogic.common.ResourceException: DataSource(jdbc/test_myapp) can't
be created with non-existent Pool (connection or multi)
(pool/test_myapp)>
####<15/08/2002 14:09:50> <Info> <EJB> <qawebmethods> <myserver>
<main> <system> <> <010008> <EJB Deploying file: myapp-ejb.jar>
####<15/08/2002 14:09:50> <Warning> <J2EE> <qawebmethods> <myserver>
<main> <system> <> <160007> <You are running WebLogic Server with J2EE
1.3 features enabled. The implementation of specific J2EE 1.3 features
(EJB 2.0, JSP 1.2, Servlet 2.3, and J2EE Connector Architecture 1.0)
in BEA WebLogic Server 6.1 is of a non-final version of the
appropriate specification. It is subject to change in future releases
once the specification becomes finalized. This may cause application
code developed for BEA WebLogic Server 6.1 that uses the new features
of J2EE 1.3 to be incompatible with the J2EE 1.3 platform supported in
future releases of BEA WebLogic Server.>
####<15/08/2002 14:09:59> <Error> <J2EE> <qawebmethods> <myserver>
<main> <system> <> <160001> <Error deploying application myapp-ejb:
Unable to deploy EJB: Counter from myapp-ejb.jar:
The DataSource with the JNDI name: jdbc/test_myapp could not be
located. Please ensure that the DataSource has been deployed
successfully and that the JNDI name in your EJB Deployment descriptor
is correct.
>
####<15/08/2002 14:09:59> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101053> <[HTTP myserver] Loading web app: myapp>
####<15/08/2002 14:09:59> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101059> <[myserver] Loading myapp from WAR file:
C:\bea\wlserver6.1\.\config\mydomain\applications\.wlnotdelete\wlap31483\myapp.war>
####<15/08/2002 14:09:59> <Warning> <J2EE> <qawebmethods> <myserver>
<main> <system> <> <160007> <You are running WebLogic Server with J2EE
1.3 features enabled. The implementation of specific J2EE 1.3 features
(EJB 2.0, JSP 1.2, Servlet 2.3, and J2EE Connector Architecture 1.0)
in BEA WebLogic Server 6.1 is of a non-final version of the
appropriate specification. It is subject to change in future releases
once the specification becomes finalized. This may cause application
code developed for BEA WebLogic Server 6.1 that uses the new features
of J2EE 1.3 to be incompatible with the J2EE 1.3 platform supported in
future releases of BEA WebLogic Server.>
####<15/08/2002 14:09:59> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101031>
<[WebAppServletContext(1412030,myapp,/myapp)] extracting classfiles to
C:\bea\wlserver6.1\config\mydomain\applications\.wlnotdelete\wlap31483\WEB-INF\_tmp_war_myapp:>
####<15/08/2002 14:10:04> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101032>
<[WebAppServletContext(1412030,myapp,/myapp)] extracted classfiles
successfully...>
####<15/08/2002 14:10:04> <Info> <HTTP Session> <qawebmethods>
<myserver> <main> <system> <> <100037> <Creating SessionContext of
type: memory for webapp: /myapp>
####<15/08/2002 14:10:04> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101047>
<[WebAppServletContext(1412030,myapp,/myapp)] registering classpath
servlet with initArgs 'null'>
####<15/08/2002 14:10:04> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101047>
<[WebAppServletContext(1412030,myapp,/myapp)] registering getior
servlet with initArgs 'null'>
####<15/08/2002 14:10:04> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101047>
<[WebAppServletContext(1412030,myapp,/myapp)] registering tunneling
servlets with initArgs 'wl-dispatch-policy=direct'>
####<15/08/2002 14:10:04> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101047>
<[WebAppServletContext(1412030,myapp,/myapp)] registering JSPServlet
with initArgs '[JspConfig:
verbose=true,packagePrefix=jsp_servlet,-compiler=javac,compileFlags=,workingDir=C:\bea\wlserver6.1\config\mydomain\applications\.wlnotdelete\wlap31483\WEB-INF\_tmp_war_myapp,pageCheckSeconds=1,superclass=null,keepgenerated=false,precompileContinue=false,compilerSupportsEncoding=true,encoding=null,defaultfilename=index.jsp,compilerclass=null,noTryBlocks=false]'>
####<15/08/2002 14:10:04> <Debug> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101097> <Registering ServletContext:
"myapp:/myapp">
####<15/08/2002 14:10:04> <Info> <J2EE> <qawebmethods> <myserver>
<main> <system> <> <160003> <Deployed : myapp>
####<15/08/2002 14:10:04> <Info> <HTTP> <qawebmethods> <myserver>
<main> <system> <> <101133> <Initializing WEB server myserver>
####<15/08/2002 14:10:04> <Notice> <Management> <qawebmethods>
<myserver> <main> <system> <> <141052> <Application Poller started for
development server.>
####<15/08/2002 14:10:04> <Notice> <WebLogicServer> <qawebmethods>
<myserver> <ListenThread> <system> <> <000202> <ListenThread listening
on port 7001>
####<15/08/2002 14:10:04> <Info> <NT Performance Pack> <qawebmethods>
<myserver> <ListenThread> <system> <> <000000> <NATIVE: NTSocketMuxer
was built on Nov 1 2001 16:39:28
>
####<15/08/2002 14:10:04> <Notice> <WebLogicServer> <qawebmethods>
<myserver> <SSLListenThread> <system> <> <000202> <SSLListenThread
listening on port 7002>
####<15/08/2002 14:10:05> <Notice> <Management> <qawebmethods>
<myserver> <main> <system> <> <141030> <Starting discovery of Managed
Server... This feature is on by default, you may turn this off by
passing -Dweblogic.management.discover=false>
####<15/08/2002 14:10:05> <Notice> <WebLogicServer> <qawebmethods>
<myserver> <main> <system> <> <000331> <Started WebLogic Admin Server
"myserver" for domain "mydomain" running in Development Mode>
####<15/08/2002 14:10:11> <Info> <NT Performance Pack> <qawebmethods>
<myserver> <ExecuteThread: '14' for queue: 'default'> <> <> <000000>
<Allocating: '2' NT reader threads>
####<15/08/2002 14:10:13> <Info> <HTTP> <qawebmethods> <myserver>
<ExecuteThread: '1' for queue: '__weblogic_admin_html_queue'> <system>
<> <101047> <[WebAppServletContext(5367844,console,/console)] actions:
init>
####<15/08/2002 14:10:18> <Info> <HTTP> <qawebmethods> <myserver>
<ExecuteThread: '1' for queue: '__weblogic_admin_html_queue'> <system>
<> <101047> <[WebAppServletContext(5367844,console,/console)]
FileServlet: init>
####<15/08/2002 14:10:18> <Info> <HTTP> <qawebmethods> <myserver>
<ExecuteThread: '1' for queue: '__weblogic_admin_html_queue'> <system>
<> <101047> <[WebAppServletContext(5367844,console,/console)]
FileServlet: Using standard I/O>

"thorick" <[email protected]> wrote in message news:<[email protected]>...
Most likely, the OCI libraries could not be loaded.
Before continuing down this path, is there any reason
why you want to use an OCI based Driver as opposed to the
all Java Oracle thin driver ?There is indeed a valid reason for my choice.
I am currently connecting to the Oracle "Rdb" 7.0 database (located on
VMS) - not Oracle Oracle.
The SQL Service software we're currently using is version 7.1. This
version works well with the OCI8 driver (when connecting to the
database from Windows NT). This version of SQL Service however does
NOT work for the THIN driver (unless we upgrade the SQL Service to
version 7.1.5.5 - which we're not prepared to do so because it is not
stable enough from our previous test/trials). SQLSRV Version 7.1.5.5
works for THIN driver but it will result in uncommitted
transactions/unresolved connection/stopping of listener issues and
there is a need to restart the service from time to time. Oracle has
since confirmed that this is a bug that they have yet to resolve...
So we have to stick to OCI8 (THICK) for the time being. I would really
appreciate it very much if you can tell me the various OCI libraries
that I need to load (in terms of WebLogic Server config file settings
etc..).
By the way I have already installed the Oracle 8 client software on
the NT server (where WebLogic Server is) and I have also set up the
relevant SID (using the Net8 Assistant) that points to the Oracle Rdb
database on the VMS. I have also tried using SQL*Plus to connect to
the database and I can connect properly to the database. But WebLogic
simply doesn't seem to load the software.
Help...
Regards,
Bobby Brown, writing from Australia.

Win2000+weblogic510+oracle8i,Could not load 'oracle.jdbc.driver.OracleDriver'

星期四 三月 23 20:30:17 GMT+08:00 2000:<E> <JDBC Pool>
Failed to create connection pool "ejavaPool"
weblogic.common.ResourceException: Could not load 'oracle.jdbc.driver.OracleDriver'
because
System.loadLibrary threw java.lang.UnsatisfiedLinkError
with the message 'oracle.jdbc.driver.OracleDriver'.
This could occur if the JDBC driver is not in the weblogic.class.path.
If this is a type-2 JDBC driver, it may also indicate that
the Driver native layers(DBMS client lib or driver DLL)
have not been installed properly on your system or in your environment.
This is most likely caused by one of the following:
1. The native layer SO, SL, or DLL could not be found.
2. The file permissions on the native layer SO, SL, or DLL
have not been set properly.
3. The native layer SO, SL, or DLL exists, but is either
invalid or corrupted.
For more information, read the installation documentation
for your JDBC Driver, available from:
http://www.weblogic.com/docs/install/install_jdbc.html
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.loadDriver(ConnectionEnvFactory.java:82)
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.<init>(ConnectionEnvFactory.java:97)
     at weblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.java:328)
     at weblogic.jdbc.common.internal.JdbcInfo.initPools(JdbcInfo.java, Compiled Code)
     at weblogic.jdbc.common.internal.JdbcInfo.startup(JdbcInfo.java:220)
     at weblogic.jdbc.common.internal.JdbcStartup.main(JdbcStartup.java:11)
     at java.lang.reflect.Method.invoke(Native Method)
     at weblogic.t3.srvr.StartupThread.runMain(StartupThread.java:219)
     at weblogic.t3.srvr.StartupThread.doWork(StartupThread.java, Compiled Code)
     at weblogic.t3.srvr.PropertyExecuteThread.run(PropertyExecuteThread.java:62)
any idea?

If you are trying to use the thin driver you need to make sure you have the
classes12.zip file in the weblogic server classpath. You can download this
driver from Oracle website.
hth
sree
"meijunyong" <[email protected]> wrote in message
news:[email protected]...
>
星期四 三月 23 20:30:17 GMT+08:00 2000:<E><JDBC Pool>
Failed to create connection pool "ejavaPool"
weblogic.common.ResourceException: Could not load'oracle.jdbc.driver.OracleDriver'
because
System.loadLibrary threw java.lang.UnsatisfiedLinkError
with the message 'oracle.jdbc.driver.OracleDriver'.
This could occur if the JDBC driver is not in the weblogic.class.path.
If this is a type-2 JDBC driver, it may also indicate that
the Driver native layers(DBMS client lib or driver DLL)
have not been installed properly on your system or in your environment.
This is most likely caused by one of the following:
1. The native layer SO, SL, or DLL could not be found.
2. The file permissions on the native layer SO, SL, or DLL
have not been set properly.
3. The native layer SO, SL, or DLL exists, but is either
invalid or corrupted.
For more information, read the installation documentation
for your JDBC Driver, available from:
http://www.weblogic.com/docs/install/install_jdbc.html
atweblogic.jdbc.common.internal.ConnectionEnvFactory.loadDriver(ConnectionEnvF
actory.java:82)
atweblogic.jdbc.common.internal.ConnectionEnvFactory.<init>(ConnectionEnvFacto
ry.java:97)
atweblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.java:328
at weblogic.jdbc.common.internal.JdbcInfo.initPools(JdbcInfo.java,Compiled Code)
at weblogic.jdbc.common.internal.JdbcInfo.startup(JdbcInfo.java:220)
at weblogic.jdbc.common.internal.JdbcStartup.main(JdbcStartup.java:11)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.t3.srvr.StartupThread.runMain(StartupThread.java:219)
at weblogic.t3.srvr.StartupThread.doWork(StartupThread.java, CompiledCode)
atweblogic.t3.srvr.PropertyExecuteThread.run(PropertyExecuteThread.java:62)
any idea?

Oralce 10G2 JDBC Driver - Error Loading oracle.jdbc.driver.OracleDriver

When attemping to use the 10G2 jdbc driver the following NoClassDefFoundError is encountered:
Exception in thread "main" java.lang.NoClassDefFoundError: while resolving class: oracle.jdbc.driver.OracleDriver
<<No stacktrace available>>
Caused by: java.lang.ClassNotFoundException: oracle.security.pki.OracleWallet not found in [file:./, file:ojdbc1410g2.jar, file:/usr/share/java/libgcj-3.4.4.jar, file:./, core:/]
<<No stacktrace available>>
The error does not occur when reverting back to the 9 jdbc driver. Does anyone know what is causing this behavior?
Regards,
Paul

Paul,
Actually, class "oracle.jdbc.OracleDriver" extends class "oracle.jdbc.driver.OracleDriver".
So check the JAR files in the list displayed by your error message and see if any of them contain the [missing] class, for example:
jar tvf ojdbc1410g2.jar oracle/jdbc/driver/OracleDriver.classGood Luck,
Avi.

A sign Applet unable to load "oracle.jdbc.OracleDriver" class

hi,
i am chiranjit , i am now working in a web based ERP. where i am using a signed applet which unable to load "oracle.jdbc.OracleDriver" class but it easily loading "sun.jdbc.odbc.JdbcOdbcDriver", i am also giving my code:
import java.sql.*;
import java.math.*;
import java.io.*;
import java.awt.*;
class JdbcTest extends Applet{
public static void main (String args[]) throws SQLException {
// Load Oracle driver
DriverManager.registerDriver (new oracle.jdbc.OracleDriver());
// Connect to the local database
Connection conn =
DriverManager.getConnection
("jdbc:oracle:thin:@192.168.16.7:1521:kris",
"plsql", "oracle");
// Query the employee names
Statement stmt = conn.createStatement ();
ResultSet rset = stmt.executeQuery ("SELECT FIRST_NAME FROM
AUTHORS");
// Print the name out
while (rset.next ())
System.out.println (rset.getString (1));
// Close the result set, statement, and the connection
rset.close();
stmt.close();
conn.close();
}

Hint: The sun.jdbc.odbc.JdbcOdbcDriver is available in any JRE distribution. The Oracle driver is not.

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;

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).

Couldnt load database driver: oracle.jdbc.driver.OracleDriver

Hi,
I could appreciate some help here.
I have saved my classes12.zip and nls_charset12.zip in my c:\work\WebDev and I have added this to my classpath. But when I run my servlet, I still get the error of "Couldnt load database driver: oracle.jdbc.driver.OracleDriver"
I also tried using jar files but still got the same error.
Any sggestions to solve this?
Thanks!!

If it is Tomcat, extract the classes12.zip and place
in the tomcat-home\common\classes folder.
I am rather certain that it does not need to be extracted. I am also rather certain that the documentation for Tomcat points out the correct way to install it (which includes changing the extension from zip to jar.)

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.

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

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.

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

Unable to load oracle.jdbc.driver.OracleDriver class

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