EJB 3.0 NativeQuery

I' trying to execute a native sql query, but always fails. If a use the next sentence obtains a nullpoiter
em.createNativeQuery("select sum(totalm3) from warehousefloors where warehouse=1);
ot when i use
em.createNativeQuery("select sum(totalm3) from warehousefloors where warehouse=1, Double.class);
I obtains "the descriptor for the class java.land.Double is missing
How can i do use a sum() function in EJB 3.0?

The preview JPA support in 10.1.3.0 only supported native queries for mapped entities. What you are trying to do should be possible in TopLink Essentials (the JPA reference implementation). This complete implementation of JPA will be available in the next release of the container.
You can download and try it out now at: OTN.ORACLE.COM/JPA.
Doug

Similar Messages

Ejb 3.0 createNativeQuery with resultClass

As suggested by Shay Shmeltzer on the jdev forum, I post this question on the toplink forum.
I am developing an application with jsf+ejb. I need to create a search form with a complex query, so I think I need to use a native query with entity manager’s createNativeQuery method. The query execution should then populate a List<ScrSoggElenco> variable, where ScrSoggElenco is the class I use as ‘data type hint’ for the table in which the query results are shown.
I am trying to do this by using the
createNativeQuery(String sqlString, Class resultClass)
method.
My code is like this
Query q = em.createNativeQuery(nativeQuery,ScrSoggElenco.class);
List<ScrSoggElenco> res = q.getResultList();
But q.getResultList() throws an exception:
javax.faces.el.EvaluationException: javax.faces.el.EvaluationException: Error getting property 'soggetti' from bean of type view.backing.ScrElencoSogg: javax.ejb.EJBException: Exception [TOPLINK-6007] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.QueryException
Exception Description: Missing descriptor for [class model.ScrSoggElenco].
Query: ReadAllQuery(model.ScrSoggElenco); nested exception is: Exception [TOPLINK-6007] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.QueryException
Exception Description: Missing descriptor for [class model.ScrSoggElenco].
Query: ReadAllQuery(model.ScrSoggElenco)
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:190)
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
It seems it looks for a descriptor of class model.ScrSoggElenco, I don’t know where and how to specify such descriptor.
I tried also a simpler example, with a simpler query and a simple ‘String’ class in place of ScrSoggElenco, but I got the same exception: Missing descriptor for [class java.lang.String] .
Thanks in advance, Mauro

At this point I have to post the full code of my ejb method.
You can see my query is quite complex to be written with ejbql, maybe the most difficult point is how to calculate the age of the person:
floor(months_between(sysdate,SO_SOGGETTO.DATA_NASCITA)/12) eta
how do you express this with ejbql?
I have ‘solved’ the problem with a loop that transforms each object array in an instance of ScrSoggElenco (yes, ScrSoggElenco is an arbitrary class, not a mapped entity). Of course I would like to find a more direct statement to do this.
Thanks, Mauro
public List<ScrSoggElenco> findElencoSogg(Object cognome)
String nativeQuery =
"select codts, cognome, nome, DATA_NASCITA, escl, dtapp, desc_tpinv, desc_esito, eta,\n" +
"dtrichiamo, tprich\n" +
"from\n" +
"(\n" +
"\n" +
"SELECT\n" +
" SO_SOGGETTO.COGNOME,\n" +
" SO_SOGGETTO.NOME,\n" +
" SO_SOGGETTO.DATA_NASCITA,\n" +
" fun_esclusione(SO_SOGGETTO.CODTS,SO_SOGGETTO.ULSS,SO_CNF_TPSCR.CODSCR) escl,\n" +
" SO_INVITO.DTAPP,\n" +
" SO_CNF_TPINVITO.DESCRBREVE desc_tpinv,\n" +
" SO_CNF_ESITOINVITO.DESCRBREVE desc_esito,\n" +
" SO_INVITO.CONSENSO,\n" +
"\n" +
" SO_INVITO.IDCENTROPRELIEVO,\n" +
" SO_SOGGETTO.CF,\n" +
" SO_SOGGETTO.CODTS,\n" +
" SO_SOGGETTO.CODCOMRES,\n" +
" SO_SOGGETTO.CODDISTRZONA,\n" +
" SO_SOGGETTO.CODICEREGMEDICO,\n" +
" SO_CNF_TPSCR.CODSCR tpscr,\n" +
" SO_SOGGETTO.ulss,\n" +
" 1 invpres,\n" +
" SO_INVITO.IDINVITO idinvito,\n" +
" floor(months_between(sysdate,SO_SOGGETTO.DATA_NASCITA)/12) eta,\n" +
" SO_INVITO.IDCENTROREF1LIV idcref,\n" +
" SO_INVITO.LIVELLO,\n" +
" to_date(fun_get_richiamo(so_soggetto.codts,so_soggetto.ulss,SO_CNF_TPSCR.CODSCR,3),'dd/mm/yyyy') dtrichiamo,\n" +
" fun_get_richiamo(so_soggetto.codts,so_soggetto.ulss,SO_CNF_TPSCR.CODSCR,0) TPRICH,\n" +
" SO_SOGG_SCR.ALTORISCHIO,\n" +
" fun_restituire_lastre(SO_SOGGETTO.CODTS,SO_CNF_TPSCR.CODSCR) restituire\n" +
"\n" +
" FROM SO_SOGGETTO, SO_INVITO, SO_CNF_TPINVITO, SO_CNF_ESITOINVITO, SO_CNF_TPSCR, SO_SOGG_SCR\n" +
" where SO_INVITO.CODTS = SO_SOGGETTO.CODTS\n" +
" AND SO_INVITO.ULSS = SO_SOGGETTO.ULSS\n" +
" AND SO_INVITO.TPSCR = SO_CNF_TPSCR.CODSCR\n" +
" and SO_INVITO.attivo = 1\n" +
"\n" +
" and SO_CNF_TPINVITO.IDTPINVITO = SO_INVITO.IDTPINVITO\n" +
" and SO_CNF_TPINVITO.ULSS = SO_INVITO.ULSS\n" +
" and SO_CNF_TPINVITO.TPSCR = SO_INVITO.TPSCR\n" +
"\n" +
" and SO_CNF_ESITOINVITO.CODESITOINVITO (+) = SO_INVITO.CODESITOINVITO\n" +
" and SO_CNF_ESITOINVITO.LIVESITO (+) = SO_INVITO.LIVESITO\n" +
" and SO_CNF_ESITOINVITO.ULSS (+) = SO_INVITO.ULSS\n" +
" and SO_CNF_ESITOINVITO.TPSCR (+) = SO_INVITO.TPSCR\n" +
" AND (SO_CNF_TPSCR.SESSO IS NULL OR SO_SOGGETTO.SESSO = SO_CNF_TPSCR.SESSO)\n" +
" AND SO_SOGG_SCR.codts = SO_SOGGETTO.codts\n" +
" AND SO_SOGG_SCR.ulss = SO_SOGGETTO.ulss\n" +
" AND SO_SOGG_SCR.tpscr = SO_CNF_TPSCR.codscr\n" +
"\n" +
"union all\n" +
"\n" +
" SELECT\n" +
" SO_SOGGETTO.COGNOME,\n" +
" SO_SOGGETTO.NOME,\n" +
" SO_SOGGETTO.DATA_NASCITA,\n" +
" fun_esclusione(SO_SOGGETTO.CODTS,SO_SOGGETTO.ULSS,SO_CNF_TPSCR.CODSCR) escl,\n" +
" to_date(null),\n" +
" null,\n" +
" null,\n" +
" null,\n" +
"\n" +
" null,\n" +
" SO_SOGGETTO.CF,\n" +
" SO_SOGGETTO.CODTS,\n" +
" SO_SOGGETTO.CODCOMRES,\n" +
" SO_SOGGETTO.CODDISTRZONA,\n" +
" SO_SOGGETTO.CODICEREGMEDICO,\n" +
" SO_CNF_TPSCR.CODSCR tpscr,\n" +
" SO_SOGGETTO.ulss,\n" +
" 0 invpres,\n" +
" null idinvito,\n" +
"floor(months_between(sysdate,SO_SOGGETTO.DATA_NASCITA)/12) eta,\n" +
" null idcref,\n" +
" null livello,\n" +
" to_date(fun_get_richiamo(so_soggetto.codts,so_soggetto.ulss,SO_CNF_TPSCR.CODSCR,3),'dd/mm/yyyy') dtrichiamo,\n" +
" fun_get_richiamo(so_soggetto.codts,so_soggetto.ulss,SO_CNF_TPSCR.CODSCR,0) TPRICH,\n" +
" to_number(null),\n" +
" 0 restituire\n" +
"\n" +
" FROM SO_SOGGETTO,SO_CNF_TPSCR\n" +
" where not exists\n" +
" (select 1 from SO_INVITO\n" +
" where SO_INVITO.CODTS = SO_SOGGETTO.CODTS\n" +
" AND SO_INVITO.ULSS = SO_SOGGETTO.ULSS\n" +
" AND SO_INVITO.TPSCR = SO_CNF_TPSCR.CODSCR\n" +
" and SO_INVITO.attivo = 1)\n" +
" AND (SO_CNF_TPSCR.SESSO IS NULL OR SO_SOGGETTO.SESSO = SO_CNF_TPSCR.SESSO)\n" +
" ) " +
"where cognome like '" + cognome + "%'";
String nativeQuery = "select cognome from so_soggetto " +
"where cognome like '" + cognome + "%'";
//Query q = em.createNativeQuery(nativeQuery,ScrSoggElenco.class);
Query q = em.createNativeQuery(nativeQuery);
List<ScrSoggElenco> res = q.getResultList();
Object[] listaSogg = res.toArray();
int size = listaSogg.length;
List<ScrSoggElenco> elenco = new ArrayList<ScrSoggElenco>();
for (int i=0 ;i<size ;i++ )
Vector vec = (Vector) listaSogg;
Object[] sogg = vec.toArray();
ScrSoggElenco newSogg =
new ScrSoggElenco(
(String) sogg[0],
(String) sogg[1],
(String) sogg[2],
(Timestamp) sogg[3],
(String) sogg[4],
(Timestamp) sogg[5],
(String) sogg[6],
(String) sogg[7],
(BigDecimal) sogg[8],
(Timestamp) sogg[9],
(String) sogg[10]
elenco.add(newSogg);
return elenco;

EJB-QL, multiply call returns same result

Hi,
I have a strange problem with dynamic QL. When I’m calling the same Entity with almost the same query (different values in the where clause) the query returns the same result.
Ex:
First (good) SELECT OBJECT(ejb) FROM table AS ejb where ejb.x='9-99-99-9999' AND ejb.y='8-88-88-8888’
Second (wrong) SELECT OBJECT(ejb) FROM table AS ejb where ejb.x='9-99-99-9993' AND ejb.y='8-88-88-8888’
The second time, the entity from the first query is returned again.
Any input will be greatly appreciated.
Best regards,
Gustav

Hi,
What I would do to start nailing down the issue is to print out the actual SQL that is being sent to the DBMS.
If the actual SQL matches what you expect it to be, then the problem is the Database or the formulation of the query. If the SQL does not match up to the EJB QL that is being submitted, then there's a problem with Dynamic Queries.
In the weblogic.ejb.QueryHome
you can get the SQL that will be sent to the dbms by doing:
String myEJBQL = "SELECT OBJECT(ejb) FROM etc....";
String myActualSQL = queryHome.nativeQuery(myEJBQL);
Try this and let us know the result.
-thorick

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
Caused by: javax.naming.NameNotFoundException: Name ejb is not bound in this Context
     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)
     at ar.com.mcd.fawkes.ui.locator.EJB3Locator.get(EJB3Locator.java:28)
     ... 87 more
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
We are calling ejb service call from BPM service to update the data to Oracle database.
We are getting the below error when we executing the ejb service call from BPM Service.
<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 NativeQuery

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