Unable to load a class specified in your ejb-jar.xml

I was trying an example on entity bean CMP, i created the bean and tried to deploy it.I got the following error :-
Exception:weblogic.management.ApplicationException: prepare failed for CMP Module: CMP Error: Exception preparing module: EJBModule(CMP,status=NEW) Unable to deploy EJB: C:\bea\user_projects\domains\Testdomain\applications\CMP.jar from CMP.jar: weblogic.ejb20.deployer.DeploymentDescriptorException: Unable to load a class specified in your ejb-jar.xml: pack.sams.ItemBean at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeBeanInfos(Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Lweblogic.utils.classloaders.GenericClassLoader;)V(MBeanDeploymentInfoImpl.java:550) at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.<init>(Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Lweblogic.utils.classloaders.GenericClassLoader;Ljava.lang.String;Ljava.lang.String;Ljava.lang.String;Lweblogic.utils.jars.VirtualJarFile;)V(MBeanDeploymentInfoImpl.java:232) at weblogic.ejb20.deployer.EJBDeployer.prepare(Lweblogic.utils.jars.VirtualJarFile;Ljava.lang.ClassLoader;Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Ljavax.naming.Context;Ljava.util.Map;)V(EJBDeployer.java:1302) at weblogic.ejb20.deployer.EJBModule.prepare(Ljava.lang.ClassLoader;)V(EJBModule.java:498) at weblogic.j2ee.J2EEApplicationContainer.prepareModule(Lweblogic.utils.classloaders.GenericClassLoader;Lweblogic.j2ee.J2EEApplicationContainer$Component;Z)V(J2EEApplicationContainer.java:3101) at weblogic.j2ee.J2EEApplicationContainer.prepareModules([Lweblogic.j2ee.J2EEApplicationContainer$Component;Ljava.lang.String;Z)V(J2EEApplicationContainer.java:1560) at weblogic.j2ee.J2EEApplicationContainer.prepare([Lweblogic.j2ee.J2EEApplicationContainer$Component;[Ljava.lang.String;Ljava.lang.String;Ljava.lang.String;)V(J2EEApplicationContainer.java:1208) at weblogic.j2ee.J2EEApplicationContainer.prepare(Ljava.lang.String;[Lweblogic.management.configuration.ComponentMBean;[Ljava.lang.String;)V(J2EEApplicationContainer.java:1051) at weblogic.management.deploy.slave.SlaveDeployer$ComponentActivateTask.prepareContainer()V(SlaveDeployer.java:2444) at weblogic.management.deploy.slave.SlaveDeployer$ActivateTask.createContainer()Z(SlaveDeployer.java:2394) at weblogic.management.deploy.slave.SlaveDeployer$ActivateTask.prepare()V(SlaveDeployer.java:2310) at weblogic.management.deploy.slave.SlaveDeployer.processPrepareTask(Lweblogic.management.deploy.OamVersion;Lweblogic.management.runtime.DeploymentTaskRuntimeMBean;Z)V(SlaveDeployer.java:866) at weblogic.management.deploy.slave.SlaveDeployer.prepareDelta(Lweblogic.management.deploy.OamDelta;Lweblogic.management.deploy.OamVersion;ZLjava.lang.StringBuffer;)Z(SlaveDeployer.java:594) at weblogic.management.deploy.slave.SlaveDeployer.prepareUpdate(Ljava.util.ArrayList;Z)V(SlaveDeployer.java:508) at weblogic.drs.internal.SlaveCallbackHandler$1.execute(Lweblogic.kernel.ExecuteThread;)V(SlaveCallbackHandler.java:25) at weblogic.kernel.ExecuteThread.execute(Lweblogic.kernel.ExecuteRequest;)V(ExecuteThread.java:219) at weblogic.kernel.ExecuteThread.run()V(ExecuteThread.java:178) at java.lang.Thread.startThreadFromVM(Ljava.lang.Thread;)V(Unknown Source)
[Deployer:149033]preparing application CMP on ejb
[Deployer:149033]failed application CMP on ejb
[Deployer:149034]An exception occurred for task [Deployer:149026]Deploy application CMP on ejb.: Exception:weblogic.management.ApplicationException: prepare failed for CMP Module: CMP Error: Exception preparing module: EJBModule(CMP,status=NEW) Unable to deploy EJB: C:\bea\user_projects\domains\Testdomain\applications\CMP.jar from CMP.jar: weblogic.ejb20.deployer.DeploymentDescriptorException: Unable to load a class specified in your ejb-jar.xml: pack.sams.ItemBean at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeBeanInfos(Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Lweblogic.utils.classloaders.GenericClassLoader;)V(MBeanDeploymentInfoImpl.java:550) at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.<init>(Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Lweblogic.utils.classloaders.GenericClassLoader;Ljava.lang.String;Ljava.lang.String;Ljava.lang.String;Lweblogic.utils.jars.VirtualJarFile;)V(MBeanDeploymentInfoImpl.java:232) at weblogic.ejb20.deployer.EJBDeployer.prepare(Lweblogic.utils.jars.VirtualJarFile;Ljava.lang.ClassLoader;Lweblogic.management.descriptors.toplevel.EJBDescriptorMBean;Ljavax.naming.Context;Ljava.util.Map;)V(EJBDeployer.java:1302) at weblogic.ejb20.deployer.EJBModule.prepare(Ljava.lang.ClassLoader;)V(EJBModule.java:498) at weblogic.j2ee.J2EEApplicationContainer.prepareModule(Lweblogic.utils.classloaders.GenericClassLoader;Lweblogic.j2ee.J2EEApplicationContainer$Component;Z)V(J2EEApplicationContainer.java:3101) at weblogic.j2ee.J2EEApplicationContainer.prepareModules([Lweblogic.j2ee.J2EEApplicationContainer$Component;Ljava.lang.String;Z)V(J2EEApplicationContainer.java:1560) at weblogic.j2ee.J2EEApplicationContainer.prepare([Lweblogic.j2ee.J2EEApplicationContainer$Component;[Ljava.lang.String;Ljava.lang.String;Ljava.lang.String;)V(J2EEApplicationContainer.java:1208) at weblogic.j2ee.J2EEApplicationContainer.prepare(Ljava.lang.String;[Lweblogic.management.configuration.ComponentMBean;[Ljava.lang.String;)V(J2EEApplicationContainer.java:1051) at weblogic.management.deploy.slave.SlaveDeployer$ComponentActivateTask.prepareContainer()V(SlaveDeployer.java:2444) at weblogic.management.deploy.slave.SlaveDeployer$ActivateTask.createContainer()Z(SlaveDeployer.java:2394) at weblogic.management.deploy.slave.SlaveDeployer$ActivateTask.prepare()V(SlaveDeployer.java:2310) at weblogic.management.deploy.slave.SlaveDeployer.processPrepareTask(Lweblogic.management.deploy.OamVersion;Lweblogic.management.runtime.DeploymentTaskRuntimeMBean;Z)V(SlaveDeployer.java:866) at weblogic.management.deploy.slave.SlaveDeployer.prepareDelta(Lweblogic.management.deploy.OamDelta;Lweblogic.management.deploy.OamVersion;ZLjava.lang.StringBuffer;)Z(SlaveDeployer.java:594) at weblogic.management.deploy.slave.SlaveDeployer.prepareUpdate(Ljava.util.ArrayList;Z)V(SlaveDeployer.java:508) at weblogic.drs.internal.SlaveCallbackHandler$1.execute(Lweblogic.kernel.ExecuteThread;)V(SlaveCallbackHandler.java:25) at weblogic.kernel.ExecuteThread.execute(Lweblogic.kernel.ExecuteRequest;)V(ExecuteThread.java:219) at weblogic.kernel.ExecuteThread.run()V(ExecuteThread.java:178) at java.lang.Thread.startThreadFromVM(Ljava.lang.Thread;)V(Unknown Source) .
Please suggest a solution to this error.
Note that the class specified in the error is in its package. So this doesn't seems to be exact error. Please suggest.

Hi,
I have faced same problem most of time and resolved ot by recompileing my all the classes and new deployment descriptors. First you should make new java files for all clases(copy contents fron old java files ) and make anew package same as old and then do all the required process and re deploy it. I think because of some problem in class generation.

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HI,
I am trying yo upgrade my application from weblogic 8.1 to weblogic 9.2.3. My application has both session and enitybeans. I updated weblogic related jars with 9.x version. But while running ejbgen, i am getting the following exception.
*[java] weblogic.ejb.container.deployer.DeploymentDescriptorException: Unable to set the transaction attribute for method 'updateService(abcTO)' on EJB 'AbcService'. No matching method could be found. Please verify the method signature specified in the ejb-jar.xml file matches that of your Local interface for this EJB.*
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Edited by: avn_venki on Mar 16, 2009 7:15 AM
Edited by: avn_venki on Mar 16, 2009 7:15 AM

ejb-jar.xml has always required fully-qualified class names. If some vendors have accepted unqualified class names unfortunately that
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Failed to load weblogic-ejb-jar.xml

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I try to deploy an EJB on Weblogic 9.1, but the weblogic-ejb-jar seems to cause this exception :
======================================================
[wlappc] <30 oct. 2006 12 h 13 CET> <Error> <J2EE> <BEA-160187> <weblogic.appc failed to compile your application. Recompile with the -verbose option for more details. Please see the error message(s) below.>
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[wlappc] at com.bea.staxb.runtime.internal.UnmarshalResult.getPojoBindingType(UnmarshalResult.java:325)
[wlappc] at com.bea.staxb.runtime.internal.UnmarshalResult.determineTypeForGlobalElement(UnmarshalResult.java:292)
[wlappc] at com.bea.staxb.runtime.internal.UnmarshalResult.determineTypeForGlobalElement(UnmarshalResult.java:302)
[wlappc] at com.bea.staxb.runtime.internal.UnmarshalResult.determineRootType(UnmarshalResult.java:283)
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[wlappc] at weblogic.descriptor.DescriptorManager.createDescriptor(DescriptorManager.java:271)
[wlappc] at weblogic.descriptor.DescriptorManager.createDescriptor(DescriptorManager.java:240)
[wlappc] at weblogic.descriptor.DescriptorManager.createDescriptor(DescriptorManager.java:300)
[wlappc] at weblogic.application.descriptor.AbstractDescriptorLoader.createDescriptor(AbstractDescriptorLoader.java:344)
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[wlappc] at weblogic.application.descriptor.AbstractDescriptorLoader.createDescriptor(AbstractDescriptorLoader.java:328)
[wlappc] at weblogic.application.descriptor.AbstractDescriptorLoader.getDescriptor(AbstractDescriptorLoader.java:237)
[wlappc] at weblogic.application.descriptor.AbstractDescriptorLoader.getRootDescriptorBean(AbstractDescriptorLoader.java:217)
[wlappc] at weblogic.ejb.spi.EjbJarDescriptor.parseWeblogicEjbJarBean(EjbJarDescriptor.java:171)
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[wlappc] at weblogic.ejb.container.dd.xml.DDUtils.parseWLDD(DDUtils.java:535)
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[wlappc] at weblogic.ejb.container.ejbc.EJBCompiler.parseDescriptors(EJBCompiler.java:1345)
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======================================================
Here is my weblogic-ejb-jar.xml file :
======================================================
<?xml version="1.0" encoding="ISO-8859-1"?>
<weblogic-ejb-jar xmlns="http://www.bea.com/ns/weblogic/910"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.bea.com/ns/weblogic/910
          http://www.bea.com/ns/weblogic/910/weblogic-ejb-jar.xsd">
<weblogic-enterprise-bean>
<ejb-name>MyMDB</ejb-name>
<message-driven-descriptor>
     <resource-adapter-jndi-name>ActiveMQRA</resource-adapter-jndi-name>
     <connection-factory-jndi-name>myQCF</connection-factory-jndi-name>
</message-driven-descriptor>
<resource-description>
<res-ref-name>jms/factory</res-ref-name>
<jndi-name>myQCF</jndi-name>
</resource-description>
<resource-env-description>
<resource-env-ref-name>jms/queue</resource-env-ref-name>
<jndi-name>queue.out</jndi-name>
</resource-env-description>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
======================================================
So, it looks like this problem : http://forums.bea.com/bea/message.jspa?messageID=600018030&tstart=0
I just need a confirmation :
- is the "res-ref-name" format incorrect with '/' character ?
- is the jndi-name format incorrect with '.' character ?
Else, what is the problem with this DD ?
Thanks,
Rudy

"shubha" <[email protected]> wrote:
>
hi ,
Ejb with ejb-name 'hellobean' in ejb-jar.xml
should be specified in weblogic-ejb-jar.xml with <weblogic-enterprise-bean></weblogic-enterprise-bean>
i am having problem in deploying the most simple bean on wls7.0 .
when i try to open the bean module with the weblogic builder i get the
following
message
weblogic.ejb20.WLDeploymentException: Could not locate bean with ejb-name
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     at weblogic.marathon.tasks.OpenModuleTask.figureOutModule(OpenModuleTask.java:76)
     at weblogic.marathon.tasks.OpenModuleTask.figureOutModule(OpenModuleTask.java:109)
     at weblogic.marathon.tasks.OpenModuleTask.runBackground(OpenModuleTask.java:64)
     at weblogic.jellybeans.core.task.TaskThread.execute(TaskThread.java:114)
     at weblogic.jellybeans.core.task.TaskThread.run(TaskThread.java:55)
Could not locate bean with ejb-name 'hellobean' in weblogic-ejb-jar.xml
Module hello1 descriptors failed to load
if anyone has come across the same problem and have debugged it please
help me
out
thanks in advance

ITunes was unable to load data class information from Sync Services. Reconnect or try again later AND Your iPhone has never been backed up to this computer AND always Not Responding

First: I get the message telling me that "iTunes was unable to load data class information from Sync Services. Reconnect or try again later."
Second: In the Summary Tab under Backups, iTunes is telling me that my iPhone has never been backed up to my computer - which is not true. It's also telling me that my iPhone has never been backed up to iCloud. Again, not true. Although my backups are all missing from iTunes, I can see what I think is them in their folder: C:\Users\*your user name here*\AppData\Roaming\Apple Computer\MobileSync.
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Fourth: I've been searching this "help" forum for a solution, and I've seen many other references, yet the only suggestion I've seen from someone from Apple is a reference to a solution that is over 2 years old - and DOESN'T WORK for anyone I can see who's tried it!
I've tried everything I could think of, and that others have suggested, including:
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Running around the house whilst pulling my hair and yelling obscenities
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Hmmm... Been a devoted Apple/iOS guy for years, but maybe it's time to switch to Android?

I've resolved the issue with iTunes constantly not responding. It's a bit embarrassing. I had a DVD in the drive that was corrupt, and once I was able to remove it - BAM - iTunes ran perfectly.
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Unable to load Driver Class

Hi There:
When I try to connect to the Oracle 8i via this applet , I get the following run time error.
Any help will be appreciated.
I am using j2sdkee1.3.1, jdk1.3.1_02 and Oracle8.
I also need your suggestion please. I have inserted some BLOB data in the Oracle table. I will need to display the BLOB data to the end users. I plan to convert this BLOB data into string format so that my applet can display the same. Further the string will have to be edited by the end users. I will then convert this modified string back to byte array so that I can insert the same as BLOB.
Please let me know applet or the servlet? Which is better option.
Users are reluctant to use any kind of WebServer because it will introduce the additional layer of complexity.
Any help will be greatly appreciated.
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C:\>AppletViewer JdbcApplet.html
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java.lang.ClassNotFoundException: java.io.FileNotFoundException: C:\oracle\jdbc\
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Hi,
maybe I'm too late but try the following :
It seems that Your IDE doesn't check the path to Your classesxxx.zip file.
Or Your classesxxx.zip file is corrupt.
We had this error after downloading the classes12.zip for Oracle versions
higher 8.1.6.
The original size of this file is 1.888kB.
Remember Windows FTP is downloading in ascii mode per default.
Or Your classpath isn't correct
( the Exception souns like this )
Regards

Help Please .... Unable to load Driver Class

Hi There:
When I try to connect to the Oracle 8i via this applet , I get the following run time error.
Any help will be appreciated.
I am using j2sdkee1.3.1, jdk1.3.1_02 and Oracle8.
I also need your suggestion please. I have inserted some BLOB data in the Oracle table. I will need to display the BLOB data to the end users. I plan to convert this BLOB data into string format so that my applet can display the same. Further the string will have to be edited by the end users. I will then convert this modified string back to byte array so that I can insert the same as BLOB.
Please let me know applet or the servlet? Which is better option.
Users are reluctant to use any kind of WebServer because it will introduce the additional layer of complexity.
Any help will be greatly appreciated.
Thanks in advance.
C:\>AppletViewer JdbcApplet.html
Unable to load Driver Class
java.lang.ClassNotFoundException: java.io.FileNotFoundException: C:\oracle\jdbc\
driver\OracleDriver.class (The system cannot find the path specified)
The following code snippet fails because it is unable to find the suitable driver.
if (conn == null)
     //make a connection to the db
     try {
          // conn = DriverManager.getConnection ("jdbc:oracle:thin:@"+"localhost:1521:sys", "system", "manager");
          // conn = DriverManager.getConnection ("jdbc:oracle:thin:system/manager@(description=(address_list= (address=(pro tocol=tcp)(host=localhost)(port=1521)))(source_route=yes)(connect_data=(sid=sys)))" );
          Class.forName("oracle.jdbc.driver.OracleDriver");
          String conurl="jdbc:oracle:thin:@localhost:1521:sys";
          Connection con=DriverManager.getConnection(conurl,"system","manager");
     } catch ( Exception e ) {
          System.out.println ("Unable to load Driver Class");
          e.printStackTrace (System.out);
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          return false;
} // End of if Statement from conn...

Hi,
maybe I'm too late but try the following :
It seems that Your IDE doesn't check the path to Your classesxxx.zip file.
Or Your classesxxx.zip file is corrupt.
We had this error after downloading the classes12.zip for Oracle versions
higher 8.1.6.
The original size of this file is 1.888kB.
Remember Windows FTP is downloading in ascii mode per default.
Or Your classpath isn't correct
( the Exception souns like this )
Regards

ITunes was unable to load data class information from Sync Services. Reconnect or try again later.

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I have uninstalled and completely purged all Apple data from my PC (including hidden files and folders under Common Files and in the Registry) and reinstalled iTunes. Yet after one or two syncs, the same problem resurfaces. The other weird part is that the Sync Services crap-out message will happen after I do a successful sync, leave the iPhone connected to the PC, and don't even touch the computer for several hours.
I've actually developed a very tedious work around that seems to restore syncing if for a short time.
- Undock/unconnect all Apple devices from the PC.
- Close iTunes, MobileMe control panel, and Safari (if you have it).
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- Open up a Windows Explorer window (like My Computer) and under Tools, Folder Options, View, toggle on Show Hidden Files and toggle off Hide Protected Operating System FIles
- In WIndows Explorer, navigate to "C:\Users\<your name>\App Data\Roaming\Apple Computer". Rename the folder Sync Services to something else, like Sync Services_Old.
- In WIndows Explorere, navigate to "C:\Program Files (x86)\Common Files\Apple\Mobile Device Support" and double-click on AppleSyncNotifier.exe.
- Go back to your Folder Options and turn off SHow Hidden Files and toggle on Hide Protected Operationg System Files
Now you can start up iTunes again and connect your device. It should sync properly again (at least, until it doesn't once more).
Does anyone at Apple have any idea about this error or a solution?

I actually spent a fair amount of time on the phone with a senior Apple tech last week. He directed me to this topic:
http://support.apple.com/kb/HT1923?viewlocale=en_US
It's important that you go through the steps EXACTLY as described here and in the proper order. Also make sure MobileMe control panel is uninstalled (if you have it).
Interestingly, when I went through this procedure and then reinstalled iTunes 10.4 64-bit (didn't do MobileMe or Safari at this stage, but QT is automatically installed) everything worked perfectly. The aforementioned error messages disappeared and all is working flawlessly, as it should.
I hope my expereince will help! Give it a try.

When I connect my iphone4s to itunes on my laptop I get this error...itunes was unable to load data class info from sync serv

When I connect my iphone4s to itunes on my laptop I get this error...itunes was unable to load data class info from sync serv

In the course of your troubleshooting to date, have you worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

HT1386 my ipad won't sink; I continually get message: itunes was unable to load data class information from Sync Services. Reconnect or try again later. I have done both several times and still receive same messaage.

My iPad won't sink with my computer. I continually receive this message: "iTunes was unable to load data class information from Sync Services. Reconnect or try again later." I have tried this over a number of days and receive the same message. Any suggestions??

IOS: Syncing with iTunes
http://support.apple.com/kb/HT1386
Apple - Support - iPad - Syncing
http://www.apple.com/support/ipad/syncing/
ITunes: Syncing media content to your iOS devices
http://support.apple.com/kb/ht1351
There are some similar posts on the right side of this page (More Like This). Look at those posts.
 Cheers, Tom

I'm trying to sync my i phone. I haven't synced it in a few months, but the notice that comes up is itunes was unable to load data class information from sync services..what does it mean?

I'm trying to sync my i phone. I haven't synced it in a few months, but the notice that comes up is itunes was unable to load data class information from sync services..what does it mean?

In the course of your troubleshooting to date, have you worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

Itunes unable to load data class information from Sync Services

Hi
I have an I Phone 4 , after upgradation to IOS 7.0.1 i tried to connect my phone to itunes, i showed that i need to upgrade my Itunes to version 11. I did the same even after both upgrading the phone and Itunes. Itunes is unable to detect my phone and continuously shows :Itunes unable to load data class information from Sync Services.
After this i upgraded my phone to IOS 7.0.2 still the problem persist. I have logged in as an administrator also , have uninstaaled itunes and have again installed it. Have even tried to change prferences and have reset the sync history, still Itunes is unable to detect my phone and sync it and comes up again and again with the same message :
Itunes unable to load data class information from Sync Services. I have a windows 7 PC.

Doublechecking. In the course of your troubleshooting to date, have you worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

When i try to sync my ipod i get the message "iTunes was unable to load data class information from sync services"

see title. wont sync

In the course of your troubleshooting to date, have you worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

I tried to sync my phone and received this message: "iTunes was unable to load data class info from sync services. Reconnect or try again later." Now it doesn't sync calendars because it says I need to download Outlook, which I already have

I have synced my phone to my computer several times. This time i received this message: "iTunes was unable to load data class infor from sync services. Reconnect or try again later." It says if I want to sync calendar I must install Outlook to my computer?? Why does iTunes not recongnize that I already have Outlook installed on my computer?

This worked for me...i did a restore on my computer to take it to a date prior to the last update i did on itunes and now it works just fine. Everytime i do a backup it syncs my Outlook! When a request comes up saying there's a new version of itunes click here to download the latest one DON'T do it.
Here's how to do a restore on your computer:
Create a restore point
A restore point is a representation of a stored state of your computer's system files. You can use a restore point to restore your computer's system files to an earlier point in time. Restore points are automatically created by System Restore weekly and when System Restore detects the beginning of a change to your computer, such as when you install a program or a driver.
System image backups stored on hard disks can also be used for System Restore, just like the restore points created by system protection. Even though system image backups contain both your system files and personal data, your data files won't be affected by System Restore. For more information about system images, see What is a system image? You can create a restore point manually at any time by following the steps below.
Go to the Windows website to watch the video. (1:08)
Click to open System.
In the left pane, click System protection. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
Click the System Protection tab, and then click Create.
In the System Protection dialog box, type a description, and then click Create.
For more information about System Restore, see What is System Restore?
I HOPE THIS WORKS!
Annette9114

Unable to load a class specified in your ejb-jar.xml

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