[Mehdi.b]

Hello !
I’m french so excuse my possible langage faults 🙂

I get the last myeclipse :
Version: 5.5.1 GA
Build id: 20070521-5.5.1-GA

I try to generate EJB3 entity bean with your reverse engineering plugin. The generation looks working great !

I work with an AS/400 server and DB2 database. I’m trying to genenrate a simple Table with a simple primary key and no foreign keys.

The application server is JBoss 4.0.5.GA with EJB3 support.

Here is my persistence.xml file

<?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"
    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="CRUD" transaction-type="JTA">

        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>java:/DB2400DS</jta-data-source>

        <properties>

            <property name="hibernate.dialect"
                value="org.hibernate.dialect.DB2400Dialect" />
            <!--     <property name="hibernate.hbm2ddl.auto" value="update" /> -->

        </properties>
    </persistence-unit>
</persistence>

Here is the JBoss log deployement

14:49:10,500 INFO  [Ejb3Deployment] EJB3 deployment time took: 47
14:49:10,500 INFO  [JmxKernelAbstraction] installing MBean: persistence.units:jar=CRUD2.jar,unitName=CRUD with dependencies:
14:49:10,500 INFO  [JmxKernelAbstraction]     jboss.jca:name=DB2400DS,service=DataSourceBinding
14:49:10,500 INFO  [Ejb3Configuration] found EJB3 Entity bean: com.clemessy.cdam.crud.app.App
14:49:10,515 WARN  [Ejb3Configuration] Persistence provider caller does not implements the EJB3 spec correctly. PersistenceUnitInfo.getNewTempClassLoader() is null.
14:49:10,531 INFO  [Configuration] Reading mappings from resource: META-INF/orm.xml
14:49:10,531 INFO  [Ejb3Configuration] [PersistenceUnit: CRUD] no META-INF/orm.xml found
14:49:10,531 INFO  [AnnotationBinder] Binding entity from annotated class: com.clemessy.cdam.crud.app.App
14:49:10,531 INFO  [EntityBinder] Bind entity com.clemessy.cdam.crud.app.App on table APP
14:49:10,546 INFO  [ConnectionProviderFactory] Initializing connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider
14:49:10,546 INFO  [InjectedDataSourceConnectionProvider] Using provided datasource
14:49:10,546 INFO  [SettingsFactory] RDBMS: DB2 UDB for AS/400, version: 05.03.0000 V5R3m0
14:49:10,546 INFO  [SettingsFactory] JDBC driver: AS/400 Toolbox for Java JDBC Driver, version: 5.0
14:49:10,546 INFO  [Dialect] Using dialect: org.hibernate.dialect.DB2400Dialect
14:49:10,546 INFO  [TransactionFactoryFactory] Transaction strategy: org.hibernate.ejb.transaction.JoinableCMTTransactionFactory
14:49:10,546 INFO  [TransactionManagerLookupFactory] instantiating TransactionManagerLookup: org.hibernate.transaction.JBossTransactionManagerLookup
14:49:10,562 INFO  [TransactionManagerLookupFactory] instantiated TransactionManagerLookup
14:49:10,562 INFO  [SettingsFactory] Automatic flush during beforeCompletion(): disabled
14:49:10,562 INFO  [SettingsFactory] Automatic session close at end of transaction: disabled
14:49:10,562 INFO  [SettingsFactory] Scrollable result sets: enabled
14:49:10,562 INFO  [SettingsFactory] JDBC3 getGeneratedKeys(): enabled
14:49:10,578 INFO  [SettingsFactory] Connection release mode: auto
14:49:10,578 INFO  [SettingsFactory] Default batch fetch size: 1
14:49:10,578 INFO  [SettingsFactory] Generate SQL with comments: disabled
14:49:10,578 INFO  [SettingsFactory] Order SQL updates by primary key: disabled
14:49:10,578 INFO  [SettingsFactory] Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
14:49:10,578 INFO  [ASTQueryTranslatorFactory] Using ASTQueryTranslatorFactory
14:49:10,578 INFO  [SettingsFactory] Query language substitutions: {}
14:49:10,578 INFO  [SettingsFactory] JPA-QL strict compliance: enabled
14:49:10,578 INFO  [SettingsFactory] Second-level cache: enabled
14:49:10,578 INFO  [SettingsFactory] Query cache: disabled
14:49:10,578 INFO  [SettingsFactory] Cache provider: org.hibernate.cache.HashtableCacheProvider
14:49:10,578 INFO  [SettingsFactory] Optimize cache for minimal puts: disabled
14:49:10,578 INFO  [SettingsFactory] Structured second-level cache entries: disabled
14:49:10,578 INFO  [SettingsFactory] Statistics: disabled
14:49:10,578 INFO  [SettingsFactory] Deleted entity synthetic identifier rollback: disabled
14:49:10,578 INFO  [SettingsFactory] Default entity-mode: pojo
14:49:10,578 INFO  [SessionFactoryImpl] building session factory
14:49:10,578 INFO  [SessionFactoryObjectFactory] Not binding factory to JNDI, no JNDI name configured
14:49:10,578 INFO  [NamingHelper] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
14:49:10,578 INFO  [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=CRUD2.jar,name=AppFacade,service=EJB3 with dependencies:
14:49:10,578 INFO  [JmxKernelAbstraction]     persistence.units:jar=CRUD2.jar,unitName=CRUD
14:49:10,609 INFO  [EJBContainer] STARTED EJB: com.clemessy.cdam.crud.app.AppFacade ejbName: AppFacade
14:49:10,625 INFO  [EJB3Deployer] Deployed: file:/C:/Program Files/jboss-4.0.5.GA/server/default/deploy/CRUD2.jar/

As you can see i have 2 problems

WARN  [Ejb3Configuration] Persistence provider caller does not implements the EJB3 spec correctly. PersistenceUnitInfo.getNewTempClassLoader() is null.

and

INFO  [SessionFactoryObjectFactory] Not binding factory to JNDI, no JNDI name configured

How do i fix them ?

I added a simple printHello to test the session bean.

here is the client side

AppFacadeRemote appRemote;
        
        try {
            
            Context ctx = new InitialContext();
            
            appRemote = (AppFacadeRemote) ctx.lookup("AppFacade/remote");
            

            System.out.println(appRemote.printHello());
            
            App a = appRemote.findById("EBO");
            System.out.println(a.getLibelle());
            
            
            
        } catch (NamingException e) {
            System.out.println("Erreur");
            e.printStackTrace();
        }

        System.out.println("End");
    }

The printHello works without problems but findById don’t.

The error message

Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
    at $Proxy0.findById(Unknown Source)
    at com.clemessy.cdam.client.ClientCRUD2.main(ClientCRUD2.java:27)
Caused by: java.lang.ClassNotFoundException: [Ljava.lang.StackTraceElement;
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    at org.jboss.remoting.loading.RemotingClassLoader.loadClass(RemotingClassLoader.java:50)
    at org.jboss.remoting.loading.ObjectInputStreamWithClassLoader.resolveClass(ObjectInputStreamWithClassLoader.java:139)
    at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
    at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
    at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128)
    at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66)
    at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279)
    at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
    at org.jboss.remoting.Client.invoke(Client.java:525)
    at org.jboss.remoting.Client.invoke(Client.java:488)
    at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
    at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
    at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
    at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
    at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
    ... 2 more

I added these libraries for the EJB3 project

C:\Program Files\jboss-4.0.5.GA\server\default\lib\ejb3-persistence.jar
C:\Program Files\jboss-4.0.5.GA\server\default\deploy\ejb3.deployer\jboss-ejb3x.jar
C:\Program Files\jboss-4.0.5.GA\server\default\deploy\ejb3.deployer\jboss-ejb3.jar

…and this for the client side

C:\Program Files\jboss-4.0.5.GA\client\jboss-aspect-jdk50-client.jar
C:\Program Files\jboss-4.0.5.GA\client\jbossall-client.jar
C:\Program Files\jboss-4.0.5.GA\client\jboss-aop-jdk50-client.jar

a hint…

public App findById(String id) {
        EntityManagerHelper.log("finding App instance with id: " + id,
                Level.INFO, null);
        try {
            App instance = entityManager.find(App.class, id);
            return instance;
        } catch (RuntimeException re) {
            EntityManagerHelper.log("find failed", Level.SEVERE, re);
            throw re;
        }
    }

if i remove this line :

EntityManagerHelper.log("finding App instance with id: " + id,
                Level.INFO, null);

this function will work without any problems !

BUT this technique won’t work with save/update/delete functions…. 🙁

Somebody can specify precisely which libraries i have to use ?

If anybody can help me, i would be grateful !!!! 🙂

Best regards !

[Riyad Kalla]

Before you go too far down this path, try using Toplink as your EJB3/JPA persistence provider, it provides a much better implementation of the Java EE 5 persistence spec.

Then retry your example again and see if it’s behaving better. Also I noticed that during the RMI call to narrow the object, you are getting a class-not-found exception for a core platform class… are you running MyEclipse and JBoss with different JDKs? You might try and force them to run with the same JDK and see if that resolves the issue.

[Mehdi.b]

Thank you, this was a JDK versionning problem !

[Riyad Kalla]

I’m glad it’s working now.

[yulun74]

@Mehdi.b wrote:

Thank you, this was a JDK versionning problem !

I have the same problem with JBoss 4.0.5 with JDK 1.5.0_11.
Could you please specify how you get that resolve?
Thank you…

[Mehdi.b]

Hello yulun74
You have to be sure that you use the right jdk version with “java -version” command.
Personally, i removed all jre/jdk of my computer and reinstall it after… I’ve got the jre 1.6 release ..
Now, I use the new release of jboss (4.2.1) with jdk 1.5.0_12 and all works fine 🙂
Hope i helped you..

[Author]

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