Random classcast exception - com.sun.jndi.cosnaming.CNCtxFactory

Hi,
I am trying to use a remote ejb (weblogic 8.1.5/ jdk 14) from a j2se 1.5 rmi-iiop client.
If I use com.sun.jndi.cosnaming.CNCtxFactory to look up the remote home & then use the remote interface, I get the following error RANDOMly (i.e only some calls succeed).
java.lang.ClassCastException
     at xxx.equals(xxxjava:129)
     at weblogic.corba.utils.IndirectionValueHashtable.get(IndirectionValueHashtable.java:119)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1471)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
     at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
     at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
     at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
     at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at weblogic.iiop.RMIMsgOutput.writeObject(RMIMsgOutput.java:117)
     at xxx.yyy_ehqjge_EOImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:492)
     at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108)
     at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:435)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
     at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:430)
     at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:35)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
I had a look at IndirectionValueHashtable class. It looks like the classcast is happening because the "handle-to-object" map has non String values.
Could this be a corba compatabilty issue?
The problem doesn't occur if I use weblogic initial context factory & t3 protocol.
What is the best way to overcome this problem? I dont want to distribute weblogic.jar [from 8.1.5 server]. wlclient is okay.
thanks

Tony Zimmer <> writes:
Certainly looks like a bug, in which case you need to go through
support to get it fixed. Do however check that your objects are in
fact serializable (including all their fields).
andy
Tried a few more combinations. No luck so far.
classcast exception for some objects at some times
server: WebLogic Server 10.0 / Sun 1.5.0_06/ WinNT 6
client: Sun jdk 1.5.0_11/1.4.2_14
java.lang.ClassCastException: java.lang.String
 at xxxpack.client.PaymentReceipt.equals(PaymentReceipt.java:881)
 at weblogic.corba.utils.IndirectionValueHashtable.get(IndirectionValueHashtable.java:119)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1836)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1992)
 at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2253)
 at weblogic.utils.io.ObjectStreamClass.writeFields(ObjectStreamClass.java:413)
 at weblogic.corba.utils.ValueHandlerImpl.writeValueData(ValueHandlerImpl.java:235)
 at weblogic.corba.utils.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:182)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1957)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1992)
 at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2253)
 at weblogic.utils.io.ObjectStreamClass.writeFields(ObjectStreamClass.java:413)
 at weblogic.corba.utils.ValueHandlerImpl.writeValueData(ValueHandlerImpl.java:235)
 at weblogic.corba.utils.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:182)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1957)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1992)
 at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2253)
 at xxxpack.server.ProcessPayment_ehqjge_EOImpl_WLSkel.invoke(Unknown Source)
 at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
 at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:224)
 at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:479)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(Unknown Source)
 at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:475)
 at weblogic.rmi.internal.BasicServerRef.access$300(BasicServerRef.java:59)
 at weblogic.rmi.internal.BasicServerRef$BasicExecuteRequest.run(BasicServerRef.java:1016)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
server: WebLogic Server 8.1 SP6 / Sun 1.4.2_11 / WinNT 6
client jdk 1.4.2_14/1.5.0_11:
java.lang.ClassCastException
 at xxxpack.client.PurchaseAmount.equals(PurchaseAmount.java:148)
 at weblogic.corba.utils.IndirectionValueHashtable.get(IndirectionValueHashtable.java:119)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1471)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
 at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
 at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
 at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
 at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
 at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
 at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
 at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
 at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
 at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
 at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
 at weblogic.iiop.RMIMsgOutput.writeObject(RMIMsgOutput.java:117)
 at xxxpack.server.ProcessPayment_ehqjge_EOImpl_WLSkel.invoke(Unknown Source)
 at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:491)
 at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:120)
 at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:434)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
 at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:429)
 at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:35)
 at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
 at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
Do you have a list/ martix of client-server versions used for the bug fixes?
Thanks

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please tell me what is faultcode means and how to solve this exception

Hi,
Whenever there is any error inside the WebService or while it's processing ...it throws Exceptions ..We can handle these exception by our own to make the Exception details more readable.....For that we can create our own SOAPFault message...
Please refer to the below Posts...
1). If you are using JAXWS Style of WebService then : http://middlewaremagic.com/weblogic/?p=713
2). If you are using JAXRPC Style of WebService then : http://middlewaremagic.com/weblogic/?p=721
Thanks
Jay SenSharma
http://middlewaremagic.com/weblogic (Middleware magic Is Here)

Com.sun.jndi.ldap.ctl.PagedResultsControl

Hi,
I was wondering if iPlanet Server Directory 5.0 SP1 supports the Page Result
Control?
I am developing a Java Client that will read more than 2 000 entries from
iPlanet.
I have an OperationNotSupportedException with iPlanet 5.0.
Thanks in advance.
Stephane Chauvin.

Hello Stephane,
No, it is not. You can list the supported controls by executing an ldapsearch on the root DSE. 
ldapsearch -h <serverhost> -p <serverport> -s base -b "" \ "objectclass=*" supportedcontrol 
Instead of the Page Result Control, you may want to consider using the Virtual List View control (see http://search.ietf.org/internet-drafts/draft-ietf-ldapext-ldapv3-vlv-04.txt)
Regards,
Bertold

Caught an unexpected exception! java.lang.ClassCastException at com.sun.cor

Hi,
Iam struggling with this problem from last 3days.
Any body could u help me to solve this problem.
error:
Caught an unexpected exception!
java.lang.ClassCastException at com.sun.corba.se.internal.javax.rmi.PortableRemoteObject.narrow (PortableRemoteObject.java:293)
at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:134)
at ConverterClient.main(ConverterClient.java:59)
Client Code is here:
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.util.Properties;
import javax.ejb.CreateException;
import java.util.Hashtable;
// NOT NECESSARY import Converter;
// NOT NECESSARY import ConverterHome;
public class ConverterClient {
public static void main(String[] args) {
try {
Properties env = new Properties();
          env.put("java.naming.factory.initial","com.sun.jndi.cosnaming.CNCtxFactory");
          env.put("java.naming.provider.url", "iiop://localhost:3700");
          Context initial = new InitialContext(env);
     ConverterHome home =(ConverterHome)PortableRemoteObject.narrow(initial.lookup("MyConverter"),ConverterHome.class);
// Create converter session bean
Converter currencyConverter = home.create();
// Calculate from dollars to yen
double amount = currencyConverter.dollarToYen(100.00);
System.out.println("100 Dollars is " + String.valueOf(amount) + " Yen");
// Calculate from yen to dollars
amount = currencyConverter.yenToEuro(100.00);
System.out.println("100 Yen is " + String.valueOf(amount) + " Dollars");
} catch (Exception ex) {
System.err.println("Caught an unexpected exception!");
ex.printStackTrace();

Hi,
I have a stateless bean and accessing it from a jsp page in Orion App Server. There is no problem in the deployment. of the application.
When I access the bean from the jsp page is throwing
java.lang.ClassCastException
at com.sun.corba.se.internal.javax.rmi.PortableRemoteObject.narrow(Unknown Source)
The code is :
Object homeObject = null;
homeObject = ctx.lookup("LoginHome");
out.println(homeObject.toString());
LoginHome ejbHome = (LoginHome)PortableRemoteObject.narrow(homeObject,LoginHome.class);
Login login = ejbHome.create();
when I use the statement
homeOject.toString() to print the object it prints
LoginHome EJBHome
I am not able to resolve this for th epast three days.
Thanks,
Vivek S

Javax.naming.NameNotFoundException. Root exception is org.omg.CosNaming.Na

Hello everyone:
I am having trouble in finding local entity bean using jndi lookup. I am using wsad5.1.1. Jndi looks up my entity bean successfully if the ejb is remote.
My local ejb lookup:
Properties env = new Properties();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL, "iiop://localhost:2809/");
Context initialContext = new InitialContext(env);
Object homeObject = initialContext.lookup("java:comp/env/ejb/DS_DLID_PORTRAIT");
EJB-REF :
<ejb-local-ref id="EJBLocalRef_1121106135046">
 <ejb-ref-name>ejb/DS_DLID_PORTRAIT</ejb-ref-name>
 <ejb-ref-type>Entity</ejb-ref-type>
 <local-home>state.il.sos.doit.ejb.DS_DLID_PORTRAITLocalHome</local-home>
 <local>state.il.sos.doit.ejb.DS_DLID_PORTRAITLocal</local>
 <ejb-link>DS_DLID_PORTRAIT</ejb-link>
 </ejb-local-ref>
Any help is appreciated.
Thanks.

Greetings,
javax.naming.NameNotFoundException. Root exception is
org.omg.CosNaming.NamingContextPackage.NotFound
=================
Below is the line of my LoginServlet class which is
referred to in the stack trace - Object object =
context.lookup
 ( "java:comp/env/ejb/WarehouseClerk" );The root of the naming context is 'java:comp/env' and this is where lookup automatically begins for EJBs and resources. IOW, by specifying "java:comp/env/ejb/WarehouseClerk" as the EJB lookup name the server is actually treating this as "java:comp/env/java:comp/env/ejb/WarehouseClerk". Specify only the ejb context ("ejb/WarehouseClerk") in your lookup and you should be fine.
Any help would be most appreciated.
SeanRegards,
Tony "Vee Schade" Cook

Random classcast exception - com.sun.jndi.cosnaming.CNCtxFactory

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