Problem in deployment of ejb 3 in JBoss Server using Oracle

[ashusri000]

Hi All ,
I have packed a simple stateless bean along with an entity bean but there is an exception thrown during deployment as this :
-----------------------------------------------------------------------------------------------------------------------------------------------------

[ServiceController] Problem starting service persistence.units:ear=sample123.ear,jar=persist.jar,unitName=testApp
java.lang.ClassCastException: oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:245)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:103)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
-----------------------------------------------------------------------------------------------------------------------------------------------------

Please can anybody help me figure out as to why this exception is thrown up .

My persistence.xml looks like this

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="testApp" >
oracle.toplink.essentials.PersistenceProvider
<jta-data-source>java:comp/env/jdbc/my-ejb-test</jta-data-source>
src.Employee

<!--Use the java2db feature -->

<!-- Generate the sql specific to database -->


</persistence-unit>

[alexandre.krohn]

Hi,

I have a similar problem as you, but the exception I got is different. I got ClassNotFoundException, and I guess is due the "unusual" ClassLoader architecture of JBoss.

Which versions of JBoss and Toplink Essentials are you using? How did you installed Toplink on JBoss?

Alexandre

[ejbiva]

I also have similar problem when I call EntityManager.create to insert one record into oracle DB.Fatal error occur.one thing should be added that is I have never create related table in the DB.I think the mapping machenism should create it instead of me.It is true?

Stanley

[waynebaylor]

ashusri000, i think you may need to change your JTA data source.

I'm using oracle (i copied the oracle-ds.xml) and my JTA data source is: java:/OracleDS which was specified in the xml file.

[ashusri000]

Hi waynebaylor ,
Earlier I did put the datasource in the same as you have , but when it didn't work out I tried to put in this way . Still it just did not worked out .
Any clue .......


Regards

[waynebaylor]

hmmm, well it looks like there's a conflict with toplink:

java.lang.ClassCastException: oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider

but i don't know what would cause this error. i'm using hibernate with oracle 10g.

[ashusri000]

Hi waynebaylor ,
I am sure you can help me out . Now I am trying to put this hibernate thing instead of toplink . Please can you put the configuration so that I can get ahead with this persistence. I am supposed to use JBoss4.2 with
hibernate . Kindly , let me know the process of configuration steps along with the required .xml and other config files.


Regards

[ashusri000]

It would be very kind of you if you can send me a simple ear file containing an entity bean (one you have been able to deploy successfully) to my mail id :
[e-mail]

Along with other configuration files...

Regards

[waynebaylor]

JBoss comes with Hibernate installed, so there's no work to do there.

What database are you using? oracle, mysql, ...?

[ashusri000]

HI ,
I am using Oracle 10g , the same configuration as you are using . Actually I wished if you could give me the configuration details such as -.ds.xml files along with the packaging details of the ear/ jar files. It would be very kind of you if I could get some respite from you in this regard.
Expecting a relief from you soon.

Regards

[waynebaylor]

here's an example oracle-ds.xml:

<?xml version="1.0" encoding="UTF-8"?>

<datasources>
 <local-tx-datasource>
 <jndi-name>OracleDS</jndi-name>
 <connection-url>jdbc:oracle:thin:@db_host:1521:database_name</connection-url>

 <driver-class>oracle.jdbc.driver.OracleDriver</driver-class>

 <user-name>my_name</user-name>
 <password>my_pass</password>


 <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name>


 <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
 <metadata>
 <type-mapping>Oracle9i</type-mapping>
 </metadata>
 </local-tx-datasource>

</datasources>

and here's an example persistence.xml:

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
 version="1.0">

 <persistence-unit name="jpa" transaction-type="JTA">

 <provider>org.hibernate.ejb.HibernatePersistence</provider>

 <jta-data-source>java:/OracleDS</jta-data-source>

 <class>onetoone.Parent</class>
 <class>onetoone.Child</class>
 <class>onetoone.Person</class>


 <properties>
 <property name="hibernate.hbm2ddl.auto" value="update"/>
 <property name="hibernate.cache.provider_class" value="org.hibernate.cache.NoCacheProvider"/>

 <!-- NEED THIS FOR hbm2ddl ANT TASK -->
 <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9Dialect"/>

 </properties>

 </persistence-unit>

</persistence>

[sankarreddy123]

hi there is mistake in u r persistence.xml file i correctd it and i am giving that at here. u should give provider class in the tag only.......





<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="testApp"/>
oracle.toplink.essentials.PersistenceProvider
<jta-data-source>java:comp/env/jdbc/my-ejb-test</jta-data-source>
src.Employee

<!--Use the java2db feature -->

<!-- Generate the sql specific to database -->


</persistence-unit>

[waynebaylor]

please enclose your XML in quote or code tags.