Create Data Control does not work?!

I created an application with JSF,EJB,TopLink JPA technology template.
Two projects were generated, EJBModel and View Controller. So far so good.
In EJBModel project I generated 6 entities from 6 db tables. I also created a native query in orm.xml and created a result class entity to take the result of this native query.
I generated session EJB facade and added a method to invoke above native query.
I also generated EJB client from this facade to test it.
I run both to ensure query works as expected and it did.
I then right clicked on session EJB facade and selected option Create Data Control.
JDev pop-ed up two windows: one window to Choose EJB Interface dialog and on top of this one another window with title "Create Data Control" and with message "Creating data Control..." stuck forever. I could not remove nor stop this window executing, I had to kill JDev in Task Manager.
Is this a known thing and is there a workaround? This is kind of urgent, any help is appreciated

I returned to 10.1.3.2. and created the same application, but got bunch of exceptions which forced me a couple of weeks ago to switch to 11g Preview environment:
SEVERE: [current-workspace-app] An error occured deploying EJB module: com.evermind.server.ejb.exception.DeploymentException: [current-workspace-app:OyaisPrototypeJSFEJB_EJBModel_0] - Exception creating EntityManagerFactory using PersistenceProvider class oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider for persistence unit Prototype.
com.evermind.server.ejb.exception.DeploymentException: [current-workspace-app:OyaisPrototypeJSFEJB_EJBModel_0] - Exception creating EntityManagerFactory using PersistenceProvider class oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider for persistence unit Prototype.
     at com.evermind.server.ejb.exception.DeploymentException.exceptionCreatingEntityManagerFactory(DeploymentException.java:130)
     at com.evermind.server.ejb.persistence.PersistenceUnitManagerImpl.createContainerEntityManagerFactory(PersistenceUnitManagerImpl.java:197)
     at com.evermind.server.ejb.persistence.PersistenceUnitManagerImpl.initializePersistenceUnit(PersistenceUnitManagerImpl.java:159)
     at com.evermind.server.ejb.persistence.PersistenceUnitManagerImpl.initialize(PersistenceUnitManagerImpl.java:86)
     at com.evermind.server.ejb.EJBPackageDeployment.initializePersistenceUnitManager(EJBPackageDeployment.java:1022)
     at com.evermind.server.ejb.EJBContainer.postInit(EJBContainer.java:845)
     at com.evermind.server.ApplicationStateRunning.initializeApplication(ApplicationStateRunning.java:217)
     at com.evermind.server.Application.setConfig(Application.java:439)
     at com.evermind.server.Application.setConfig(Application.java:340)
     at com.evermind.server.ApplicationServer.addApplication(ApplicationServer.java:1853)
     at com.evermind.server.ApplicationServer.initializeDeployedApplications(ApplicationServer.java:1608)
     at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:990)
     at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:131)
     at java.lang.Thread.run(Thread.java:595)
Caused by: javax.persistence.PersistenceException: Exception [TOPLINK-28018] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.EntityManagerSetupException
Exception Description: predeploy for PersistenceUnit [Prototype] failed.
Internal Exception: Exception [TOPLINK-7156] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: Unable to find the class named []. Ensure the class name/path is correct and available to the classloader.
Internal Exception: java.lang.ClassNotFoundException:
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:615)
     at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.createContainerEntityManagerFactory(EntityManagerFactoryProvider.java:178)
     at com.evermind.server.ejb.persistence.PersistenceUnitManagerImpl.createContainerEntityManagerFactory(PersistenceUnitManagerImpl.java:192)
     ... 12 more
Caused by: Exception [TOPLINK-28018] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.EntityManagerSetupException
Exception Description: predeploy for PersistenceUnit [Prototype] failed.
Internal Exception: Exception [TOPLINK-7156] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: Unable to find the class named []. Ensure the class name/path is correct and available to the classloader.
Internal Exception: java.lang.ClassNotFoundException:
     at oracle.toplink.essentials.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:212)
     ... 15 more
Caused by: Exception [TOPLINK-7156] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: Unable to find the class named []. Ensure the class name/path is correct and available to the classloader.
Internal Exception: java.lang.ClassNotFoundException:
     at oracle.toplink.essentials.exceptions.ValidationException.unableToLoadClass(ValidationException.java:1751)
     at oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataHelper.getClassForName(MetadataHelper.java:283)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLHelper.getClassForName(XMLHelper.java:109)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLHelper.getValue(XMLHelper.java:431)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLHelper.getNodeValue(XMLHelper.java:347)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.XMLHelper.getNodeValue(XMLHelper.java:298)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.queries.XMLNamedNativeQuery.<init>(XMLNamedNativeQuery.java:67)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.accessors.XMLClassAccessor.processNamedNativeQueries(XMLClassAccessor.java:584)
     at oracle.toplink.essentials.internal.ejb.cmp3.xml.accessors.XMLClassAccessor.processEntityMappings(XMLClassAccessor.java:496)
     at oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataProcessor.processMappingFile(MetadataProcessor.java:534)
     at oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataProcessor.processMappingFiles(MetadataProcessor.java:518)
     at oracle.toplink.essentials.ejb.cmp3.persistence.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:352)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:584)
     ... 14 more
Caused by: java.lang.ClassNotFoundException:
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:242)
     at oracle.toplink.essentials.internal.security.PrivilegedAccessHelper.getClassForName(PrivilegedAccessHelper.java:97)
     at oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataHelper.getClassForName(MetadataHelper.java:280)
     ... 25 more

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