EJB 3.0 AutoIncrement

I have a requirement to use auto-increment support for my EJB / JPA persistent objects. The objects could be modified through a web interface, PDA interface, or service and the underlying database (developing in mysql 5) could be mysql, oracle, sql server, etc.
There doesn't appear to be any strong evidence that a standard approach to auto-increment exists in EJB so I'm wondering what the best practice is (several articles I read states that the support is not there) however it is in hibernate and other frameworks...so I would guess it would be in EJB 3.0.
I've seen one article that states to use a static class to query the underlying datasource (http://forums.sun.com/thread.jspa?forumID=13&threadID=5232947) while another to use some annotations on the entity beans (http://forums.sun.com/thread.jspa?forumID=13&threadID=734751).
So what should I use?
Thank you,
Kris

The @GeneratedValue annotation was introduced to make auto-generation of primary keys a breeze. This is the approach I have seen used on the web and in EJB3 books (there is a good section in Chapter 8 of EJB3 in Action by D Panda and co.) If you are looking for a standard approach I would opt for that. I have personally used it on Oracle, MySQL and SqlServer with no issues.
m

Similar Messages

Problems with EJB 2.0 et Auto Increment PK

How to implement EJB 2.0 Entity bean for auto increment DB filed, let's say I have table adress(ID, city,state), ID is auto-increment PK, I have ejbCreate(city,state) and it generates exception (Caused by: SQL Exception: Attempt to modify an autoincrement column 'ID'. ) even if i set ID to null in ejbCreate.
DB is Cloudscape 51, app. server is Websphere 5.1

Okay, maybe getID() makes sense if needed :) But I
thought I read
somewhere else that in case of autoincrement, the ID
field has to be
read-only... Am I wrong here? If I am, I beg your
pardon for giving a wrong
answer, Matthieu :)How does the container tell your entity bean what it's ID is when it gets created?
You start off with an entity bean which has not been persisted in the database, so your ID field is NULL or zero.
You say: "Hey container, this bean instance you gave me, can you make sure that it is persisted in your data store?"
The container goes and creates a new row, get's a new ID for the row, populates the row with the data from your bean and sets the ID property in your bean instance to the id of the newly created row and says "OK, I've done that, here's your bean back"
Now that was the simple answer why... there is a more complex answer which is that the container will only ever create a fixed number of your entity beans in RAM (it's configured in the XML deployment descriptor, let's pretend it's 2)
You say: "I want a new bean"
Container gives you bean #1
Joe says: "I want a new bean
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The container looks at Joe's bean and says... that hasn't been used recently, serializes the bean saves the serialized form in temporary storage and gives you bean #2.
You say: "I'm done with those bean #1"
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You need a setID because the container needs setID to function.

Insert multiple rows with autoincrement id

I need to insert multiple rows to a table which has an autoincrement PK (unique), e.g:
Entity:
public Class Entity{
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "id")
Private Long id;
Facade:
@PersistenceContext(unitName = "xx-enterprise-ejbPU")
protected EntityManager em;
public void create(Entity entity) {
em.persist(entity);
Service Class:
public Class Service implements ServiceLocal{
@EJB
private XxxFacadeLocal xxxFacade;
public void saveEntity(Entity entity){
xxxFacade.create(entity)
ManageBean:
public Class ManageBean
@EJB
private ServiceLocal service;
public void doSave(ActionEvent event)
service.saveEntity(entity1); //entity.id is set to null, suppose to be generated by DB auto_increment, i.e. insert 3 rows with 3 different ids
service.saveEntity(entity2);
service.saveEntity(entity3);
The result is: Key duplication error on inserting entity2, but entity1 is inserted into DB with id auto increased correctly.
If I insert only one row each time for test purpose, everything works as expected.
But what I need is to insert multiple rows. How to do it?
Thank you in advance.

Like this (although the @Basic annotation is very much unnecessary). So if it isn't happening you must have made a mistake somewhere. Are you sure the ID column actually has auto_increment?
Also if you are using Hibernate as the persistence provider and you put it on the classpath, check the packages of the annotations you are using; Hibernate and JPA share some with the same name unfortunately.

Error while calling a method on Bean (EJB 3.0)

I am getting an error while calling a method on EJB. I am using EJB3.0 and my bean is getting properly deployed(i am sure b'cos i can see the successfullly deployed message). Can any body help me
Error is -->
Error while destroying resource :An I/O error has occured while flushing the output - Exception: java.io.IOException: An established connection was aborted by the software in your host machine
Stack Trace:
java.io.IOException: An established connection was aborted by the software in your host machine
at sun.nio.ch.SocketDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:33)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
at sun.nio.ch.IOUtil.write(IOUtil.java:75)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:302)
at com.sun.enterprise.server.ss.provider.ASOutputStream.write(ASOutputStream.java:138)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at org.postgresql.PG_Stream.flush(PG_Stream.java:352)
at org.postgresql.core.QueryExecutor.sendQuery(QueryExecutor.java:159)
at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:70)
at org.postgresql.jdbc1.AbstractJdbc1Connection.ExecSQL(AbstractJdbc1Connection.java:482)
at org.postgresql.jdbc1.AbstractJdbc1Connection.ExecSQL(AbstractJdbc1Connection.java:461)
at org.postgresql.jdbc1.AbstractJdbc1Connection.rollback(AbstractJdbc1Connection.java:1031)
at org.postgresql.jdbc2.optional.PooledConnectionImpl$ConnectionHandler.invoke(PooledConnectionImpl.java:223)
at $Proxy34.close(Unknown Source)
at com.sun.gjc.spi.ManagedConnection.destroy(ManagedConnection.java:274)
at com.sun.enterprise.resource.LocalTxConnectorAllocator.destroyResource(LocalTxConnectorAllocator.java:103)
at com.sun.enterprise.resource.AbstractResourcePool.destroyResource(AbstractResourcePool.java:603)
at com.sun.enterprise.resource.AbstractResourcePool.resourceErrorOccurred(AbstractResourcePool.java:713)
at com.sun.enterprise.resource.PoolManagerImpl.putbackResourceToPool(PoolManagerImpl.java:424)
at com.sun.enterprise.resource.PoolManagerImpl.resourceClosed(PoolManagerImpl.java:393)
at com.sun.enterprise.resource.LocalTxConnectionEventListener.connectionClosed(LocalTxConnectionEventListener.java:69)
at com.sun.gjc.spi.ManagedConnection.connectionClosed(ManagedConnection.java:618)
at com.sun.gjc.spi.ConnectionHolder.close(ConnectionHolder.java:163)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.closeDatasourceConnection(DatabaseAccessor.java:379)
at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.closeConnection(DatasourceAccessor.java:367)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.closeConnection(DatabaseAccessor.java:402)
at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.afterJTSTransaction(DatasourceAccessor.java:100)
at oracle.toplink.essentials.threetier.ClientSession.afterTransaction(ClientSession.java:104)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.afterTransaction(UnitOfWorkImpl.java:1816)
at oracle.toplink.essentials.transaction.AbstractSynchronizationListener.afterCompletion(AbstractSynchronizationListener.java:161)
at oracle.toplink.essentials.transaction.JTASynchronizationListener.afterCompletion(JTASynchronizationListener.java:87)
at com.sun.ejb.containers.ContainerSynchronization.afterCompletion(ContainerSynchronization.java:174)
at com.sun.enterprise.distributedtx.J2EETransaction.commit(J2EETransaction.java:467)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:357)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3653)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3431)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1247)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:197)
at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:110)
at $Proxy84.addDepartment(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:121)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:650)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:193)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1705)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1565)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:947)
at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:178)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:717)
at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.dispatch(SocketOrChannelConnectionImpl.java:473)
at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.doWork(SocketOrChannelConnectionImpl.java:1270)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:479)
End of Stack Trace
|#]
RAR5035:Unexpected exception while destroying resource. To get exception stack, please change log level to FINE.
EJB5018: An exception was thrown during an ejb invocation on [DepartmentSessionBean]
javax.ejb.EJBException: Unable to complete container-managed transaction.; nested exception is: javax.transaction.SystemException
javax.transaction.SystemException
at com.sun.enterprise.distributedtx.J2EETransaction.commit(J2EETransaction.java:452)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:357)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3653)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3431)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1247)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:197)
at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:110)
at $Proxy84.addDepartment(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Means theres an error in XML/ABAP conversion probably due a syntax error...
Regards
Juan

How can connect different ejb server in one client program

hi , every
i want to make connect ejb server into one client program.
for that , but i try to change PROVIDER_URL property , it's not correct
who solve this problem for novice? :(

You need to create separate initialContext to each of the different servers
and lookup up the different ejbs.
-Sabha
"inking" <[email protected]> wrote in message
news:[email protected]..
hi , every
i want to make connect ejb server into one client program.
for that , but i try to change PROVIDER_URL property , it's not correct
who solve this problem for novice? :(

How can i design a EJB application using session Beans?

Hello,
I am designing a Find application using EJB. Here a user is prompted a search page, where he can enter the search criteria's. Then on click of submit, the query is formed at the server side depending on what criteria's were selected. Then a jdbc query is performed and the results are returned back to the user. Here no session is maintained for the users. Can anyone suggest me how to design this application using EJB. Should i use entity beans for this or session beans will suffice? Should the jdbc query be performed in the bean itself or should it be outside in a helper class? Please kindlu suggest me the design for this application...
Regards,
Subbu

Hi,
First of all, I'm unable to figure out why you need to use EJB for this scenario. You can write a helper class to frame and execute the query.
If you really want to use EJB, then I suggest you use a stateless Session Bean with transaction attribute as TX_NOT_SUPPORTED. From the session bean, you can call the helper class. But, by avoiding the session bean, you can eliminate remote calls, thus improving your performance. Also, check if the database & the db driver you are using supports sql caching.
Regards,
Raj.

Error connecting to an EJB 3.0 Remote on OC4J 10.1.3.2 from Tomcat

Hi, I want to connect to a Remote Session Bean running on the OC4J 10.1.3 and it doesn´t work.
I have connected to it from a java standalone application using:
public static void main(String [] args) {
try {
final Context context = getInitialContext();
SessionEJB sessionEJB = (SessionEJB)context.lookup("java:comp/env/ejb/SessionEJB");
System.out.println(sessionEJB.mergeEntity(""));
System.out.println( "hola" );
} catch (Exception ex) {
ex.printStackTrace();
private static Context getInitialContext() throws NamingException {
Hashtable env = new Hashtable();
// Standalone OC4J connection details
env.put( Context.INITIAL_CONTEXT_FACTORY, "oracle.j2ee.naming.ApplicationClientInitialContextFactory" );
env.put( Context.SECURITY_PRINCIPAL, "oc4jadmin" );
env.put( Context.SECURITY_CREDENTIALS, "passw" );
env.put(Context.PROVIDER_URL, "ormi://localhost:23791/ejb3jar");
return new InitialContext( env );
with this application-client.xml file:
<?xml version = '1.0' encoding = 'windows-1252'?>
<application-client xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/application-client_1_4.xsd" version="1.4" xmlns="http://java.sun.com/xml/ns/j2ee">
<display-name>Model-app-client</display-name>
<ejb-ref>
<ejb-ref-name>ejb/SessionEJB</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<remote>ar.com.eds.ejb3.model.SessionEJB</remote>
<ejb-link>SessionEJB</ejb-link>
</ejb-ref>
thats works fine, but when I try to use the same solution from a jsf proyect running on a Tomcat 5.5.20, it fails with this error:
Caused by: java.lang.RuntimeException: Error while creating home.
     at ar.com.mcd.fawkes.ui.locator.EJB3Locator.get(EJB3Locator.java:32)
     at ar.com.mcd.fawkes.ui.locator.ServiceLocator$1.get(ServiceLocator.java:12)
     at net.sf.opentranquera.web.jsf.locator.ServiceLocatorBean.get(ServiceLocatorBean.java:42)
     at com.sun.faces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:79)
     at com.sun.faces.el.impl.ArraySuffix.evaluate(ArraySuffix.java:187)
     at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:171)
     at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
     at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)
     ... 80 more
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     at org.apache.naming.NamingContext.lookup(NamingContext.java:769)
     at org.apache.naming.NamingContext.lookup(NamingContext.java:139)
     at org.apache.naming.NamingContext.lookup(NamingContext.java:780)
     at org.apache.naming.NamingContext.lookup(NamingContext.java:139)
     at org.apache.naming.NamingContext.lookup(NamingContext.java:780)
     at org.apache.naming.NamingContext.lookup(NamingContext.java:152)
     at org.apache.naming.SelectorContext.lookup(SelectorContext.java:136)
     at javax.naming.InitialContext.lookup(Unknown Source)
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Could you please help me with any tip?
Mauricio
Message was edited by:
Mauricio

Hi, Rick
Thanks for your help.
I deleted de application-client.xml file, added the following lines to the web.xml file:
     <ejb-ref>
          <ejb-ref-name>ejb/SessionEJB</ejb-ref-name>
          <ejb-ref-type>Session</ejb-ref-type>
          <remote>ar.com.eds.ejb3.model.SessionEJB</remote>
     </ejb-ref>
and now I´m using oracle.j2ee.rmi.RMIInitialContextFactory
there is no error, and it doesn´t throw any exception but the following line returns null.
SessionEJB sessionEJB = (SessionEJB)context.lookup("java:comp/env/ejb/SessionEJB");
Its seems the lookup method finds the remote ejb because it doesn´t fail, but it returns null.
Any idea what is wrong?
Mauricio.

Error in deploying a simple EJB 3.0

Hi ,
I am getting the following error while deploying my simple ejb of version 3.0 in Weblogic 9.2.
Exception preparing module: EJBModule(build) [EJB:011023]An error occurred while reading the deployment descriptor. The error was: Error processing annotations: java.lang.NullPointerException.
During my evaluation of Weblogic 9.2 for EJB 3.0 , I have got the following questions.
EJB Specification states that EJB's in EJB 3.0 can be developed and deployed without the need of deployment descriptors. I have created a simple EJB with two file Env.java and EnvBean.java and the source code is given below.
a) I just complied these class files and when I was trying to deploy without ejb-jar.xml and weblogic-ejb-jar.xml, the console was not at all allowing me to deploy.Why is this so?
b) After I created a META-INF file under root of classes directory by placing ejb-jar.xml with empty <enterprise-beans> element, console was allowing me to deploy with errors in parsing ejb-jar.xml. The error was either session/entity/mdb is a required under <enterprise-beans> element. Why is this required when there are several examples stating <enterprise-beans> element can be empty.
c) Later I updated ejb-jar.xml with <session> element under <enterprise-beans> with the following values. I got the above error when deployed with this change.
I had been struggling to deploy this simple bean for almost a day.Pleas point me if there is any documentation that solves my stated problem or if there is a solution.Thanks in advance.
regards
Karim
ejb-jar.xml
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd">
<enterprise-beans>
<session>
<description>This is the stateless ejb</description>
<display-name>Env Bean</display-name>
<ejb-name>EnvBean</ejb-name>
</session>
</enterprise-beans>
</ejb-jar>
Env.java
package examples ;
public interface Env {
public void display();
EnvBean.java
package examples;
import javax.ejb.Remote;
import javax.ejb.Stateless;
@Stateless
@Remote(Env.class)
public class EnvBean implements Env {
public void display() {
System.out.println("Welcome to EJB 3.0");
}

Presumably you're using the EJB3 tech preview, and not a vanilla WebLogic 9.2 install, right?
Can you post the full stack trace?
-Patrick

Error while calling ejb service call from BPM service

Hi,
We are using the Oracle 11.1.1.5.0
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<Error> <EJB> <BEA-010026> <Exception occurred du
ring commit of transaction Name=[EJB oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliver
yBean.handleCallback(java.lang.String,java.lang.String,java.lang.String,int,bool
ean)],Xid=BEA1-45B91984D57960994897(30845116),Status=Rolled back. [Reason=javax.
transaction.xa.XAException: JDBC driver does not support XA, hence cannot be a p
articipant in two-phase commit. To force this participation, set the GlobalTrans
actionsProtocol attribute to LoggingLastResource (recommended) or EmulateTwoPhas
eCommit for the Data Source = EBSConnection],numRepliesOwedMe=0,numRepliesOwedOt
hers=0,seconds since begin=1,seconds left=60,XAServerResourceInfo[SOADataSource_
base_domain]=(ServerResourceInfo[SOADataSource_base_domain]=(state=rolledback,as
signed=soa_server1),xar=SOADataSource,re-Registered = false),XAServerResourceInf
o[ArCnTaskForms@EBSConnection@EBSConnection_base_domain]=(ServerResourceInfo[ArC
nTaskForms@EBSConnection@EBSConnection_base_domain]=(state=rolledback,assigned=s
oa_server1),xar=weblogic.jdbc.wrapper.JTSEmulateXAResourceImpl@fa5476,re-Registe
red = false),SCInfo[base_domain+soa_server1]=(state=rolledback),properties=({web
logic.jdbc.remote.EBSConnection=t3://192.168.10.114:8001, weblogic.transaction.n
ame=[EJB oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliveryBean.handleCallback(java.la
ng.String,java.lang.String,java.lang.String,int,boolean)]}),local properties=({w
eblogic.jdbc.jta.SOADataSource=[ No XAConnection is attached to this TxInfo ]}),
OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=soa
server1+192.168.10.114:8001+basedomain+t3+, XAResources={eis/tibjms/Queue, eis
/activemq/Queue, WLStore_base_domain_BPMJMSFileStore, WLStore_base_domain__WLS_s
oa_server1, eis/fioranomq/Topic, eis/jbossmq/Queue, eis/Apps/Apps, eis/websphere
mq/Queue, eis/AQ/aqSample, WLStore_base_domain_SOAJMSFileStore, eis/aqjms/Queue,
WSATGatewayRM_soa_server1_base_domain, eis/sunmq/Queue, eis/pramati/Queue, SSCo
nnectionDS_base_domain, eis/tibjms/Topic, eis/tibjmsDirect/Queue, eis/wls/Queue,
eis/tibjmsDirect/Topic, EDNDataSource_base_domain, eis/wls/Topic, eis/aqjms/Top
ic, RL3TST_base_domain, ArCnTaskForms@EBSConnection@EBSConnection_base_domain, S
OADataSource_base_domain, WLStore_base_domain_UMSJMSFileStore_auto_2},NonXAResou
rces={})],CoordinatorURL=soa_server1+192.168.10.114:8001+base_domain+t3+): weblo
gic.transaction.RollbackException: Could not prepare resource 'ArCnTaskForms@EBS
Connection@EBSConnection_base_domain
JDBC driver does not support XA, hence cannot be a participant in two-phase comm
it. To force this participation, set the GlobalTransactionsProtocol attribute to
LoggingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source
= EBSConnection
at weblogic.transaction.internal.TransactionImpl.throwRollbackException(
TransactionImpl.java:1881)
at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(Se
rverTransactionImpl.java:345)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTran
sactionImpl.java:239)
at weblogic.ejb.container.internal.BaseLocalObject.postInvoke1(BaseLocal
Object.java:622)
at weblogic.ejb.container.internal.BaseLocalObject.__WL_postInvokeTxRetr
y(BaseLocalObject.java:455)
at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(Sess
ionLocalMethodInvoker.java:52)
at oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliveryBean_of8dk6_ICubeDelivery
LocalBeanImpl.handleCallback(Unknown Source)
at com.collaxa.cube.engine.dispatch.message.instance.CallbackDeliveryMes
sageHandler.handle(CallbackDeliveryMessageHandler.java:47)
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(Dispatc
hHelper.java:140)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.process(BaseDispatc
hTask.java:88)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTas
k.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.transaction.xa.XAException: JDBC driver does not support XA, he
nce cannot be a participant in two-phase commit. To force this participation, se
t the GlobalTransactionsProtocol attribute to LoggingLastResource (recommended)
or EmulateTwoPhaseCommit for the Data Source = EBSConnection
at weblogic.jdbc.wrapper.JTSXAResourceImpl.prepare(JTSXAResourceImpl.jav
a:83)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:1327)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:513)
at weblogic.transaction.internal.ServerSCInfo$1.run(ServerSCInfo.java:36
8)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTunin
gWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
.>
<12 Oct, 2012 12:34:40 PM IST> <Error> <oracle.soa.bpel.engine.dispatch> <BEA-00
0000> <failed to handle message
javax.transaction.xa.XAException: JDBC driver does not support XA, hence cannot
be a participant in two-phase commit. To force this participation, set the Globa
lTransactionsProtocol attribute to LoggingLastResource (recommended) or EmulateT
woPhaseCommit for the Data Source = EBSConnection
at weblogic.jdbc.wrapper.JTSXAResourceImpl.prepare(JTSXAResourceImpl.jav
a:83)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:1327)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:513)
at weblogic.transaction.internal.ServerSCInfo$1.run(ServerSCInfo.java:36
8)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTunin
gWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
>
<12 Oct, 2012 12:34:40 PM IST> <Error> <oracle.soa.bpel.engine.dispatch> <BEA-00
0000> <Failed to handle dispatch message ... exception ORABPEL-05002
Message handle error.
error while attempting to process the message "com.collaxa.cube.engine.dispatch.
message.instance.CallbackDeliveryMessage"; the reported exception is: Error comm
itting transaction:; nested exception is: javax.transaction.xa.XAException: JDBC
driver does not support XA, hence cannot be a participant in two-phase commit.
To force this participation, set the GlobalTransactionsProtocol attribute to Log
gingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source = EB
SConnection
This error contained an exception thrown by the message handler.
Check the exception trace in the log (with logging level set to debug mode).
ORABPEL-05002
Message handle error.
error while attempting to process the message "com.collaxa.cube.engine.dispatch.
message.instance.CallbackDeliveryMessage"; the reported exception is: Error comm
itting transaction:; nested exception is: javax.transaction.xa.XAException: JDBC
driver does not support XA, hence cannot be a participant in two-phase commit.
To force this participation, set the GlobalTransactionsProtocol attribute to Log
gingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source = EB
SConnection
This error contained an exception thrown by the message handler.
Check the exception trace in the log (with logging level set to debug mode).
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(Dispatc
hHelper.java:207)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.process(BaseDispatc
hTask.java:88)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTas
k.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:662)
>
Could any body help on this issue.It is little bit urgent for us to resolve.
Thanks in advance.

Thanks Sudipto Desmukh,
The link is helpful me to resolve this issue.
Thanks,
Narasimha E

EJB 3.0 Web service fail to deploy when ws result is on a diff lib project

I'm trying to develop a web service using EJB 3.0 with annotations. I'm using Netbeans 5.5 EE.
The web service should returns an object declared on another Netbeans project.
( a library.jar).
Netbeans compiles everything alright, although when I deploy the application into Glassfish it complains with an error saying that wsdl file for the web service wasn't found.
If I move the returning object class into the same ejb project as the web service it works fine.
So, can anybody explain what is happening ? Is it a bug of Netbeans, Glassfish, EJB 3.0, JAX-WS or newbie programmer ?

I'm trying to develop a web service using EJB 3.0 with annotations. I'm using Netbeans 5.5 EE.
The web service should returns an object declared on another Netbeans project.
( a library.jar).
Netbeans compiles everything alright, although when I deploy the application into Glassfish it complains with an error saying that wsdl file for the web service wasn't found.
If I move the returning object class into the same ejb project as the web service it works fine.
So, can anybody explain what is happening ? Is it a bug of Netbeans, Glassfish, EJB 3.0, JAX-WS or newbie programmer ?

Ejb 3.0 on OC4J preview 4 CMR is this a BUG

Exception [TOPLINK-48] (Oracle TopLink - 10g release 3 (10.1.3.0.0) (Build 05091
2)): oracle.toplink.exceptions.DescriptorException
Exception Description: Multiple writable mappings exist for the field [ENVINCIDE
NTS.INCIDENTS_ID]. Only one may be defined as writable, all others must be spec
ified read-only.
Mapping: oracle.toplink.mappings.OneToOneMapping[incidents]
Descriptor: RelationalDescriptor(model.Envincidents --> [DatabaseTable(ENVINCIDE
NTS)])
as I understand the CMR uses toplink somewhere under the hood.
from the docs I got this...
@OneToMany(cascade=PERSIST)
@JoinColumn(name="MANAGER_ID", referencedColumnName="EMP_ID")
public Collection getManagedEmployees() {
return managedEmployees;
TopLink defaults and equivalent code
OneToManyMapping mapping = new OneToManyMapping();
mapping.setIsReadOnly(false);
mapping.setIsPrivateOwned(false);
mapping.setAttributeName(attributeName);
mapping.setReferenceClass(referenceClass);
in Toplink mapping there is setIsReadOnly() but how do
I specify this in ejb 3.0 annotations. I get the above error
whenever I use any sort of relationship in my ejbs and have the
same column defined as primary key in the table.

Take a look at this forum Re: CMR in ejb 3.0
You basically need to make one of your mappings as read-only and I would recommend doing it with your basic mapping as it is easier to maintain with the set of the @ManyToOne relationship.
Doug

Calling EJB 3.0 Stateless Session Bean

Dear all,
I created a stateless session bean with a hello world method on it. Now i want to call the method from a BeanDecorator class, through a getter metod. When i use the jndi lookup in my getter, i can call the helloWorld method without a problem. However, when i dont use the jndi lookup, and only use the @EJB annotation, i always get a nullpointer.
This is working:
InitialContext ic = new InitialContext();
test = (TestLocal)ic.lookup("test.be/ear~bd/LOCAL/TestBean/"+TestLocal.class.getName());
test.helloWorld()
This gives nullpointer:
@EJB
private TestLocal test;
test.helloWorld();
What is the correct way to consume session beans without having to explicitly code the jndi lookup?
Kind regards.

Hi,
any annotation like this can be used only in "managed classes" like Session Beans, Servlets etc. Managed classes are those classes managed by the J2EE server. Managed here means, lifetime controlled by server.
You can find this in J2EE specification.
Frank

EJB 3.0 - Communicate an Applet with a Session Bean

Hello
I'm developing an EJB 3.0 app (eclipse and glassfish tools bundle), and I have an applet that has to use remote session beans.
QUESTION: Is it possible for the applet to connect to EJB?
QUESTION: By creating a J2EE application client project, can I use @EJB annotations to inject the session bean directly to the applet, avoiding the JNDI lookup?
(since I imagine that the anwser to the second one is NO, I do the following consideration)
Given an application client project, I imagine that this application can run remotely on a client machine/JRE. Then this application can use Annotations/injection facilities whenever it runs on a J2EE client container (which I assume consists of a set of libraries provided by the application server vendor, Glassfish in that case). Could this application be deployed using Java Web Start? If so, why can't it be deployed as an applet? (both options run in a client JRE, don't they?).
QUESTION: In either case (applet or JWS), how do I have to package the JAR file (using Eclipse) so that it contains the needed libraries for accessing the EJB? Which are those libraries?
At the time being, I'm trying to implement a sample application that follows the "Applet doing JNDI lookup" approach. I have:
- an EAR project
- an EJB project (containing an Entity Bean and a Stateless Session Bean with a @Remote interface)
@Remote
public interface HelloRemote {
     public String hello(String name);
@Stateless
public class Hello implements HelloRemote {
     @Override
     public String hello(String name) {
          return "Hello "+name+"!!";
}- an Application Client project (containing the applet code):
public class ClientApplet extends JApplet {
     public void init(){
          try {
               Context jndiContext = getInitialContext( );
               HelloRemote server = (HelloRemote) jndiContext.lookup(HelloRemote.class.getName());
               setContentPane(new JLabel(server.hello("Gerard")));
          } catch (NamingException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
     private Context getInitialContext() throws NamingException{
          Properties props = new Properties();
          props.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
          props.setProperty("org.omg.CORBA.ORBInitialHost", "myhost");
          props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
          return new InitialContext(props);
}- a static web project (with a sample web page that contains the applet object the corresponding applet JAR file)
I tried to export the Application Client project as an "application client JAR", in the hope that the java EE libraries bundled with glassfish (listed as libraries of this project) would be packaged too.
No success, so now I'll try to copy all the JAR files (one by one) into the +\WebContent\+ folder of the Web Project, and add references to each of them in the archive="" attribute of the +<applet>+ HTML tag. Although this might work, I suspect that I am missing the good/easy way of doing it. Any suggestions?
Thanks in advance,
Gerard
Edited by: gsoldevila on May 6, 2009 7:09 AM

An Applet can communicate with an EJB via JNDI lookup but I would (personally) use an intermediate Servlet to handle this. Client to Servlet communication is http whereas to ejb is iiop - which might be blocked.
Injection only works in managed classes (EJB, Servlet, Listeners..) and an Application Client main class. So yes you could use an app client for handling resource injection.
m

Error while calling EJB with a heavyweight Object Parameter

Hi Everybody,
I am getting the following Error when i call a EJB with a heavyweight Object Parameter in Sun ONE Application Server 7.0.0_04.
[03/Jun/2005:13:40:39] WARNING ( 2484): CORE3283: stderr: org.omg.CORBA.BAD_PARAM: java.util.PropertyResourceBundle vmcid: OMG minor code: 6 completed: Maybe
[03/Jun/2005:13:40:39] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.util.Utility.throwNotSerializableForCorba(Utility.java:1018)
[03/Jun/2005:13:40:39] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:691)
[03/Jun/2005:13:40:39] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
[03/Jun/2005:13:40:39] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
[03/Jun/2005:13:40:39] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:1062)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream.write_value(CDROutputStream.java:259)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.corba.TCUtility.marshalIn(TCUtility.java:136)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.corba.AnyImpl.write_value(AnyImpl.java:599)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_any(CDROutputStream_1_0.java:538)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream.write_any(CDROutputStream.java:233)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.ShutdownUtilDelegate.writeAny(ShutdownUtilDelegate.java:196)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at javax.rmi.CORBA.Util.writeAny(Util.java:78)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.write_Array(ValueHandlerImpl.java:446)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:134)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:916)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:651)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream.write_value(CDROutputStream.java:263)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.OutputStreamHook.defaultWriteObject(OutputStreamHook.java:129)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at java.util.Vector.writeObject(Vector.java:1017)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.writeObject(Native Method)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.invokeObjectWriter(IIOPOutputStream.java:560)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:523)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:1062)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:651)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream.write_value(CDROutputStream.java:263)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream_1_0.write_value(CDROutputStream_1_0.java:1082)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.iiop.CDROutputStream.write_value(CDROutputStream.java:259)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.javax.rmi.CORBA.Util.copyObjects(Util.java:440)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at javax.rmi.CORBA.Util.copyObjects(Util.java:296)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.hrsystem.ejb._HRSystem_Stub.get(Unknown Source)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.transaction.AddressType.submitAddressChange(Unknown Source)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.transaction.AddressType.submitToSAP(Unknown Source)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.mydata.servlet.MyDataConfirmationServlet.processServlet(Unknown Source)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.core.servlet.EnetBaseHttpServlet.service(Unknown Source)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
[03/Jun/2005:13:40:40] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:278)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at java.security.AccessController.doPrivileged(Native Method)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:158)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.iplanet.ias.web.WebContainer.service(WebContainer.java:598)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr: java.rmi.UnexpectedException: java.io.IOException: Serializable readObject method failed internally
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.sun.corba.ee.internal.javax.rmi.CORBA.Util.wrapException(Util.java:370)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at javax.rmi.CORBA.Util.wrapException(Util.java:277)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.hrsystem.ejb._HRSystem_Stub.get(Unknown Source)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.transaction.AddressType.submitAddressChange(Unknown Source)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.transaction.AddressType.submitToSAP(Unknown Source)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.mydata.servlet.MyDataConfirmationServlet.processServlet(Unknown Source)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.mot.hris.core.servlet.EnetBaseHttpServlet.service(Unknown Source)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:278)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at java.security.AccessController.doPrivileged(Native Method)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:158)
[03/Jun/2005:13:40:41] WARNING ( 2484): CORE3283: stderr:      at com.iplanet.ias.web.WebContainer.service(WebContainer.java:598)
Can someone please help to solve this.
Regards,
Sunil

Unfortunately there's not really enough information for anyone to help you much. I can tell you've hit an EOF Exception, but that's about it.
What exactly do you mean by a heavyweight object parameter? Do you mean a large (in memory size) object?
Without any knowledge of your application, I'd probably start by changing your ejb method to do nothing. That should tell you at least whether it's the serialization of the parameter that's the issue or not. Narrow it down from there.
If you need more help, printing the entire stack trace of the EOFException and posting it here would be helpful.
-- Rob

Calling Enity Bean's business methods from a session bean in EJB 3.0 specif

Hello everybody,
Happy to be a member with you in this forum.
This is my first participation in this forum.
I have some problem to start with EJB 3.0 specification, I have created an entity bean with some business methods that access a mysql datbase, then i want to create a stateful session bean to provide the client an interface to consume business methods in Enity be
Please can someone you help me with an example

@Vladimir Pavlov
I did not understand what you are trying to convey...
Whenever an attribute of this bean is modified we want to access that latest value.... Is there any way to know, when the attribute is modified? Just with get/set we can not know, when it is modified... am i right?
We want to achieve this without modifying the existing source code of the EJB....
@ Ivo Simeonov
As of my knowledge, to use interceptors we need to modify the EJB source code, but we do not want to touch the source code....
All this has to be achieved dynamically when the application is deployed in the production.... is it possible???

EJB 3.0 AutoIncrement

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