Java.lang.NoClassDefFoundError: Weblogic looks for wrong drivers

Hi all,
I have a strange problem with weblogic. I use weblogic7.0 with MS SQLServer database.
All my jdbc related code from anywhere within my web application works without
a problem.
But when I try to access the database as a client using weblogic's datasource(obtained
by JNDI lookup), I get the NoClassDefFoundError. Weblogic seems to be looking
for some Oracle drivers strangely, where as I don't have any thing related to
Oracle at all. It breaks on getConnection() call on data source. My connection
pool and data source are defined properly and I have the JDBC drivers for SQLServer
in weblogic's classpath and also in client's classpath(although not required).
Again, all the database access code within my session beans using the same datasource
works fine. Weblogic server and the client application are running on the same(local)
machine.
Any help would be appreciated.
Thanks in advance.
Vas
Here's the stack trace.
java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleStatement
     at java.lang.Class.getMethods0(Native Method)
     at java.lang.Class.getMethods(Class.java:737)
     at weblogic.rmi.utils.Utilities.getRemoteMethods(Utilities.java:382)
     at weblogic.rmi.internal.StubGenerator.<init>(StubGenerator.java:79)
     at weblogic.rmi.internal.StubGenerator.<init>(StubGenerator.java:60)
     at weblogic.rmi.internal.StubGenerator.getStubClass(StubGenerator.java:637)
     at weblogic.rmi.internal.StubGenerator.generateStub(StubGenerator.java:656)
     at weblogic.rmi.internal.StubGenerator.generateStub(StubGenerator.java:651)
     at weblogic.rmi.extensions.StubFactory.getStub(StubFactory.java:59)
     at weblogic.common.internal.RemoteObjectReplacer.resolveObject(RemoteObjectReplacer.java:249)
     at weblogic.rmi.internal.StubInfo.readResolve(StubInfo.java:134)
     at java.lang.reflect.Method.invoke(Native Method)
     at java.io.ObjectStreamClass.invokeMethod(ObjectStreamClass.java:1610)
     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:388)
     at java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2258)
     at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:514)
     at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1407)
     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:381)
     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:231)
     at weblogic.common.internal.ChunkedObjectInputStream.readObject(ChunkedObjectInputStream.java:140)
     at weblogic.rjvm.MsgAbbrevInputStream.readObject(MsgAbbrevInputStream.java:91)
     at weblogic.rmi.internal.ObjectIO.readObject(ObjectIO.java:56)
     at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:161)
     at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:128)
     at weblogic.jdbc.common.internal.RmiDataSource_WLStub.getConnection(Unknown Source)
     at com.actiontech.jmetro.server.core.DBSession.executeQuery(DBSession.java:109)
     at com.actiontech.jmetro.server.query.NamespaceMappings.loadMappings(NamespaceMappings.java:76)
     at com.actiontech.jmetro.server.query.NamespaceMappings.<init>(NamespaceMappings.java:56)
     at com.actiontech.jmetro.server.query.NamespaceMappings.getInstance(NamespaceMappings.java:50)
     at com.actiontech.jmetro.server.query.NamespaceMappingsTest.testSave(NamespaceMappingsTest.java:21)
     at java.lang.reflect.Method.invoke(Native Method)
     at junit.framework.TestCase.runTest(TestCase.java:154)
     at junit.framework.TestCase.runBare(TestCase.java:127)
     at junit.framework.TestResult$1.protect(TestResult.java:106)
     at junit.framework.TestResult.runProtected(TestResult.java:124)
     at junit.framework.TestResult.run(TestResult.java:109)
     at junit.framework.TestCase.run(TestCase.java:118)
     at junit.framework.TestSuite.runTest(TestSuite.java:208)
     at junit.framework.TestSuite.run(TestSuite.java:203)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:360)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:246)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:146)

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The solution in this thread
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Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode)
Starting WLS with line:
D:\oracle\MIDDLE~1\JDK160~1.5-3\bin\java -client -Xms256m -Xmx512m -XX:CompileThreshold=8000 -XX:PermSize=128m -XX:MaxPermSize=512m -Dweblogic.Name=DefaultServer -Djava.security.policy=D:\oracle\MIDDLE~1\WLSERV~1.3\server\lib\weblogic.policy -Djavax.net.ssl.trustStore=D:\oracle\Middleware\wlserver_10.3\server\lib\DemoTrust.jks -Dweblogic.nodemanager.ServiceEnabled=true -Xverify:none -da -Dplatform.home=D:\oracle\MIDDLE~1\WLSERV~1.3 -Dwls.home=D:\oracle\MIDDLE~1\WLSERV~1.3\server -Dweblogic.home=D:\oracle\MIDDLE~1\WLSERV~1.3\server -Djps.app.credential.overwrite.allowed=true -Ddomain.home=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1 -Dcommon.components.home=D:\oracle\MIDDLE~1\oracle_common -Djrf.version=11.1.1 -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.Jdk14Logger -Djrockit.optfile=D:\oracle\MIDDLE~1\oracle_common\modules\oracle.jrf_11.1.1\jrocket_optfile.txt -Doracle.domain.config.dir=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1\config\FMWCON~1 -Doracle.server.config.dir=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1\config\FMWCON~1\servers\DefaultServer -Doracle.security.jps.config=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1\config\fmwconfig\jps-config.xml -Djava.protocol.handler.pkgs=oracle.mds.net.protocol -Digf.arisidbeans.carmlloc=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1\config\FMWCON~1\carml -Digf.arisidstack.home=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1\config\FMWCON~1\arisidprovider -Dweblogic.alternateTypesDirectory=\modules\oracle.ossoiap_11.1.1,\modules\oracle.oamprovider_11.1.1 -Dweblogic.jdbc.remoteEnabled=false -Dwsm.repository.path=C:\Users\admin\AppData\Roaming\JDEVEL~1\SYSTEM~1.36\DEFAUL~1\oracle\store\gmds -Dweblogic.management.discover=true -Dwlw.iterativeDev= -Dwlw.testConsole= -Dwlw.logErrorsToConsole= weblogic.Server
java.lang.NoClassDefFoundError: weblogic/Server
Caused by: java.lang.ClassNotFoundException: weblogic.Server
     at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: weblogic.Server. Program will exit.
Exception in thread "main" Process exited.
regards,

I am having the same issues as koloo, I am willing to provide any other debugging information that you may need.
I am running Windows 7, 64 bit, 8gigs
Jdeveloper 11.1.1.2.0 the studio edition with embedded jdk
I can start the integrated appserver outside of jdev using the cmd script that is supplied but it fails to run if I kick it off from inside of jdeveloper.
Thanks

Java.lang.NoClassDefFoundError: src/myproject/myapp (wrong name: myproject/

Hi
I was trying to build an app using JBuilder personal. It would build and run fine. Then i realised that i could not use the api from jdk1.4 as JBuilder would only work with jdk1.3.
So, i moved the project from JBuilder to Forte thinking that Forte would allow me to use the jdk1.4 api. After significant trouble porting the project, i got the project to build successfully.
But when i try to run it , i get the following error
What could be causing it and how do i fix it? these errors are very frustrating. searching this site or the forte help, hasnt given me any tips yet. Thanks
java.lang.NoClassDefFoundError: src/myproject/myapp (wrong name: myproject/myapp )
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
Exception in thread "main"

But when i try to run from Forte, it still gives the same dumb errors ..
Could it be a Forte settings problem??Definitely. Choose the Project menu, then the Settings... at the bottom. That brings you up a new dialog. On the left, select the "Execution types", and the "external execution" within. On the right pane, click on the "expert" tab on the bottom. There you have a field named classpath; add your classpath directories there. Then your program will probably run from Forte.
For compiling, you also should set the classpath; you need "Compiler types" on the left pane, and you have to set the classpath for the fastJavac compilation and/or for the external compilation, depending which one you use.
On the left also a "Java Sources" node - click on it, and check if the "default compilation" is either external or (preferable) fastJavac; and that the default execution is external.
How Forte works with internal compilation, and internal execution, I don't know, never tried that.
Best Regards,
Ivan

Problem invoking WLST - java.lang.NoClassDefFoundError: weblogic.management

Hi Guys!
I want craete the new user 'jdoe' for domain 'tst2_domain' (WebLogic Server Version: 10.3.5.0)
For it I have script 'create_user.sh':
# Set the Environment Variables
/home/testuser/Oracle/Middleware/user_projects/domains/tst2_domain/bin/setDomainEnv.sh
export JAVA_HOME=/home/testuser/Oracle/Middleware/jdk160_24/
export PATH=$PATH:$JAVA_HOME/bin/
export CLASSPATH=/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic.jar:/home/testuser/Oracle/Middleware/Oracle_OSB1/modules/com.bea.common.configfwk_1.5.0.0.jar:/home/testuser/Oracle/Middleware/Oracle_OSB1/lib/sb-kernel-api.jar:/home/testuser/Oracle/Middleware/Oracle_OSB1/lib/sb-kernel-impl.jar:/home/testuser/Oracle/Middleware/Oracle_OSB1/lib/sb-kernel-common.jar:/home/testuser/Oracle/Middleware/Oracle_OSB1/lib/sb-kernel-resources.jar
# Execute the WLST script..
cd resources
java weblogic.WLST createUsers.py.../resources/createUsers.py:
url = 'localhost:7001'
username = 'weblogic'
password = 'welcome1'
print 'Adding users to DefaultAuthenticator.'
connect(username, password, url)
# Check if user already exists
cd('/')
authProvider = cmo.getSecurityConfiguration().getDefaultRealm().lookupAuthenticationProvider("DefaultAuthenticator")
if authProvider.userExists('jdoe'):
     print 'User jdoe already exists'
     exit()
else:
     # Create users
     print 'Creating new user: jdoe'
     authProvider.createUser('jdoe','welcome2','a sample service bus administrator')
     authProvider.addMemberToGroup('Administrators','jdoe')
print 'Users created successfully.'
exit()Domain 'tst2_domain' is running...
I started the create_user.sh and then i had the error:
$ ./create_user.sh
Initializing WebLogic Scripting Tool (WLST) ...
Problem invoking WLST - java.lang.NoClassDefFoundError: weblogic.management.scripting.WLScriptContext
Could you please help me? Which the problem in the script?
$ ./setWLSEnv.sh
CLASSPATH=/home/testuser/Oracle/Middleware/patch_wls1035/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/patch_oepe1050/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/patch_ocp360/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/lib/tools.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic_sp.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic.jar:/home/testuser/Oracle/Middleware/modules/features/weblogic.server.modules_10.3.5.0.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/webservices.jar:/home/testuser/Oracle/Middleware/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/home/testuser/Oracle/Middleware/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar:
PATH=/home/testuser/Oracle/Middleware/wlserver_10.3/server/bin:/home/testuser/Oracle/Middleware/modules/org.apache.ant_1.7.1/bin:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/jre/bin:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/testuser/bin
Your environment has been set.
$ java weblogic.WLST
Exception in thread "main" java.lang.NoClassDefFoundError: weblogic.WLST
   at gnu.java.lang.MainThread.run(libgcj.so.7rh)
Caused by: java.lang.ClassNotFoundException: weblogic.WLST not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:./], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
   at java.net.URLClassLoader.findClass(libgcj.so.7rh)
   at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.7rh)
   at java.lang.ClassLoader.loadClass(libgcj.so.7rh)
   at java.lang.ClassLoader.loadClass(libgcj.so.7rh)
   at gnu.java.lang.MainThread.run(libgcj.so.7rh)

But if run script as $ ./wlst.sh /home/testuser/create_user/resources/createUsers.py - its ok!
$ ./wlst.sh /home/testuser/labs/Practice_05/create_user/resources/createUsers.py
CLASSPATH=/home/testuser/Oracle/Middleware/patch_wls1035/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/patch_oepe1050/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/patch_ocp360/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/lib/tools.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic_sp.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic.jar:/home/testuser/Oracle/Middleware/modules/features/weblogic.server.modules_10.3.5.0.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/webservices.jar:/home/testuser/Oracle/Middleware/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/home/testuser/Oracle/Middleware/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar:
PATH=/home/testuser/Oracle/Middleware/wlserver_10.3/server/bin:/home/testuser/Oracle/Middleware/modules/org.apache.ant_1.7.1/bin:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/jre/bin:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/testuser/bin
Your environment has been set.
CLASSPATH=/home/testuser/Oracle/Middleware/patch_wls1035/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/patch_oepe1050/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/patch_ocp360/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/testuser/Oracle/Middleware/jrockit_160_24_D1.1.2-4/lib/tools.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic_sp.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/weblogic.jar:/home/testuser/Oracle/Middleware/modules/features/weblogic.server.modules_10.3.5.0.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/server/lib/webservices.jar:/home/testuser/Oracle/Middleware/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/home/testuser/Oracle/Middleware/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar::/home/testuser/Oracle/Middleware/utils/config/10.3/config-launch.jar::/home/testuser/Oracle/Middleware/wlserver_10.3/common/derby/lib/derbynet.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/common/derby/lib/derbyclient.jar:/home/testuser/Oracle/Middleware/wlserver_10.3/common/derby/lib/derbytools.jar::
Initializing WebLogic Scripting Tool (WLST) ...
Welcome to WebLogic Server Administration Scripting Shell
Type help() for help on available commands
Adding users to DefaultAuthenticator.
Connecting to t3://localhost:7001 with userid weblogic ...
Successfully connected to Admin Server 'tst2_as_server' that belongs to domain 'tst2_domain'.
Warning: An insecure protocol was used to connect to the
server. To ensure on-the-wire security, the SSL port or
Admin port should be used instead.
Creating new user: jdoe
Users created successfully.
Exiting WebLogic Scripting Tool.

Exception in thread "Main Thread" java.lang.NoClassDefFoundError: weblogic/

hi,
I am getting error message when i run HttpClient in my java class. Will the HttpClient will work in weblogic.
HttpClient httpclient = new HttpClient();
I added "commons-httpclient-3.1.jar" in the class path also.
Exception in thread "Main Thread" java.lang.NoClassDefFoundError: weblogic/kernel/KernelLogManager
     at weblogic.logging.commons.LogImpl.<init>(LogImpl.java:14)
     at weblogic.logging.commons.LogFactoryImpl.getInstance(LogFactoryImpl.java:21)
     at weblogic.logging.commons.LogFactoryImpl.getInstance(LogFactoryImpl.java:18)
     at org.apache.commons.httpclient.HttpClient.<clinit>(HttpClient.java:66)
Thanks
Manu

Again you need to make a difference between what runs within the weblogic container to what runs in a vanilla JVM. Understanding this is crucial to your problem.
1. web service -> client -> another web service
The webservice will always run within the weblogic container and you should never get the ClassnotFound because weblogic.jar is always available there. Any subsequent clients loaded into the same JVM will presumably be in the same classloader and wont have problems either
2. client -> web service;
If you are using a standalone client in a JVM you shouldnt have any dependency on weblogic and commons-httpclient will work just fine as would commons-logging. However if you include some weblogic jars in the classpath, when you launch the client JVM you would need to include the jars mentioned in the other post because they reference other weblogic classes. But this isn't necessary if you just clean up your classpath to only have the jars you need.

Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/securit

Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/security/subject/AbstractSubject
hi i am trying to run ejb2 stateless session bean program but i am unable to solve the exception
can anybody please help me to solve this problem..
thanks in advance..
Edited by: 959687 on Sep 17, 2012 10:17 PM

E:\Oracle\Middleware\jdk160_35\bin>java weblogic.WLST E:\Oracle\Middleware\Oracl
e_SOA\bin\soa-createUDD.py --domain_home E:/Oracle/Middleware/user_projects/doma
ins/EPMSystem --soacluster soacluster
Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/WLST
Caused by: java.lang.ClassNotFoundException: weblogic.WLST
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: weblogic.WLST. Program will exit.

JMS error- Exception in thread "Main Thread" java.lang.NoClassDefFoundError

Hi guys,
I am new to JMS programming and i'm have the following error...I have set up a simple weblogic server on my local machine and i am trying to send a message to a queue i've created on a JMS server. I am trying to manually run an example provided by BEA WebLogic... the code follows.
//package examples.jms.queue;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;
import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
/** This example shows how to establish a connection
* and send messages to the JMS queue. The classes in this
* package operate on the same JMS queue. Run the classes together to
* witness messages being sent and received, and to browse the queue
* for messages. The class is used to send messages to the queue.
* @author Copyright (c) 1999-2006 by BEA Systems, Inc. All Rights Reserved.
public class QueueSend
// Defines the JNDI context factory.
public final static String JNDI_FACTORY="weblogic.jndi.WLInitialContextFactory";
// Defines the JMS context factory.
public final static String JMS_FACTORY="weblogic.examples.jms.QueueConnectionFactory";
// Defines the queue.
public final static String QUEUE="weblogic.examples.jms.exampleQueue";
private QueueConnectionFactory qconFactory;
private QueueConnection qcon;
private QueueSession qsession;
private QueueSender qsender;
private Queue queue;
private TextMessage msg;
   * Creates all the necessary objects for sending
   * messages to a JMS queue.
   * @param ctx JNDI initial context
   * @param queueName name of queue
   * @exception NamingException if operation cannot be performed
   * @exception JMSException if JMS fails to initialize due to internal error
public void init(Context ctx, String queueName)
    throws NamingException, JMSException
    qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
    qcon = qconFactory.createQueueConnection();
    qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
    queue = (Queue) ctx.lookup(queueName);
    qsender = qsession.createSender(queue);
    msg = qsession.createTextMessage();
    qcon.start();
   * Sends a message to a JMS queue.
   * @param message message to be sent
   * @exception JMSException if JMS fails to send message due to internal error
public void send(String message) throws JMSException {
    msg.setText(message);
    qsender.send(msg);
   * Closes JMS objects.
   * @exception JMSException if JMS fails to close objects due to internal error
public void close() throws JMSException {
    qsender.close();
    qsession.close();
    qcon.close();
/** main() method.
* @param args WebLogic Server URL
* @exception Exception if operation fails
public static void main(String[] args) throws Exception {
    if (args.length != 1) {
      System.out.println("Usage: java examples.jms.queue.QueueSend WebLogicURL");
      return;
    System.out.println(args[0]);
    InitialContext ic = getInitialContext(args[0]);
    QueueSend qs = new QueueSend();
    qs.init(ic, QUEUE);
    readAndSend(qs);
    qs.close();
private static void readAndSend(QueueSend qs)
    throws IOException, JMSException
    BufferedReader msgStream = new BufferedReader(new InputStreamReader(System.in));
    String line=null;
    boolean quitNow = false;
    do {
      System.out.print("Enter message (\"quit\" to quit): \n");
      line = msgStream.readLine();
      if (line != null && line.trim().length() != 0) {
        qs.send(line);
        System.out.println("JMS Message Sent: "+line+"\n");
        quitNow = line.equalsIgnoreCase("quit");
    } while (! quitNow);
private static InitialContext getInitialContext(String url)
    throws NamingException
    Hashtable<String,String> env = new Hashtable<String,String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
    env.put(Context.PROVIDER_URL, url);
    return new InitialContext(env);
}when i run the main method with args[0] = "t3://localhost:7001", i get the following errors:
Exception in thread "Main Thread" java.lang.NoClassDefFoundError: weblogic/security/subject/AbstractSubject
at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:117)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at QueueSend.getInitialContext(QueueSend.java:122)
at QueueSend.main(QueueSend.java:91)
Could someone please help. thanks.

when i run the main method with args[0] = "t3://localhost:7001", i get the following errors:
Exception in thread "Main Thread" java.lang.NoClassDefFoundError: weblogic/security/subject/AbstractSubject
at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:117)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at QueueSend.getInitialContext(QueueSend.java:122)
at QueueSend.main(QueueSend.java:91)
Could someone please help. thanks.This is Java 101:
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/rtrb_classload_viewer.html
You've got to have the WebLogic JAR that contains the necessary .class files in your CLASSPATH when you run.
Don't use a CLASSPATH environment variable; use the -classpath option when you run.
%

Exception in thread "main" java.lang.NoClassDefFoundError: utils.CertGen

I want to set the environment by using the setWLSEnv.sh shell in linux OS. Then execute the "java weblogic.utils.CertGen" the below error is occurred.
[root@loaclhost ~]# cd /oracle/Middleware_1033/wlserver_10.3/server/bin/
[root@loaclhost bin]# ll
total 16
drwxr-x--- 2 root root 4096 Dec 3 14:37 international
-rwxr-x--- 1 root root 3845 Dec 3 14:38 setWLSEnv.sh
-rwxr-x--- 1 root root 4150 Dec 3 14:38 startNodeManager.sh
[root@loaclhost bin]# sh setWLSEnv.sh
CLASSPATH=/oracle/Middleware_1033/patch_wls1033/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/oracle/Middleware_1033/patch_ocp353/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/oracle/Middleware_1033/patch_jdev1111/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/oracle/Middleware_1033/jdk160_18/lib/tools.jar:/oracle/Middleware_1033/wlserver_10.3/server/lib/weblogic_sp.jar:/oracle/Middleware_1033/wlserver_10.3/server/lib/weblogic.jar:/oracle/Middleware_1033/modules/features/weblogic.server.modules_10.3.3.0.jar:/oracle/Middleware_1033/wlserver_10.3/server/lib/webservices.jar:/oracle/Middleware_1033/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/oracle/Middleware_1033/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar:
PATH=/oracle/Middleware_1033/wlserver_10.3/server/bin:/oracle/Middleware_1033/modules/org.apache.ant_1.7.1/bin:/oracle/Middleware_1033/jdk160_18/jre/bin:/oracle/Middleware_1033/jdk160_18/bin:/usr/lib64/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin
Your environment has been set.
[root@loaclhost bin]# java weblogic.utils.CertGen welcome1 vinoth_MS1_cert vinoth_MS1_key domestic vinoth
Exception in thread "main" java.lang.NoClassDefFoundError: weblogic.utils.CertGen
at gnu.gcj.runtime.FirstThread.run() (/usr/lib64/libgcj.so.5.0.0)
at JvThreadRun(java.lang.Thread) (/usr/lib64/libgcj.so.5.0.0)
at JvRunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib64/libgcj.so.5.0.0)
at __gcj_personality_v0 (/oracle/Middleware_1033/wlserver_10.3/server/bin/java.version=1.4.2)
at __libc_start_main (/lib64/tls/libc-2.3.4.so)
at JvRegisterClasses (/oracle/Middleware_1033/wlserver_10.3/server/bin/java.version=1.4.2)
You have new mail in /var/spool/mail/root
But i use check the command " echo CLASSPATH " it's doesn't show any thing.
How to resolve this problem to execute the mentioned command "java weblogic.utils.CertGen welcome1 vinoth_MS1_cert vinoth_MS1_key domestic vinoth"
Regards,
S.Vinoth Babu
Edited by: Vinoth Babu on Dec 13, 2010 5:14 AM

You have to 'source' the call the setWLSEnv, for example,
source ./setWLSEnv.sh or the short version
. ./setWLSEnv.sh

Java.lang.NoClassDefFoundError when trying to create my first EJB

Hi All,
I am trying to learn EJB's on my own. I installed the WebLogic Server Trial version and then wrote the Home Interface, Component Interface and the Bean Class. Now I started the WebLogic server and tried and create the deployment descriptor.. I am getting the error below even after I set the classpath. Is there any other correct way to set the classpath?
C:\bea\jdk150_04\bin\ejb\demo>set classpath=C:\bea\weblogic92\server\lib\weblogic.jar;
C:\bea\jdk150_04\bin\ejb\demo>java weblogic.ejb.utils.DDCreator -dir dploymentDescriptor.txt
Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/ejb/utils/DDCreator
Please help me.
Thanks.

If you're just learning EJBs now I'd recommend you start with the EJB 3.0 API. It's much
easier to use than past releases and otherwise much of what you learn (e.g. Home/Component
interfaces) are not emphasized in EJB 3.0. You can start with the EJB chapters in the
Java EE 5 Tutorial :
http://java.sun.com/javaee/5/docs/tutorial/doc/
We have some additional resources here :
https://glassfish.dev.java.net/javaee5/ejb/
--ken

Java.lang.NoClassDefFoundError: Weblogic looks for wrong drivers

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