DebugMBean not found when creating EJB3 Entity Manage

Hi,
Got exception when test my ejb3 entity bean out of container. weblogic.jar which I get from weblogic 10.3 has been included in he classpath.
I checked the weblogic.jar, it does not have DebugMBean.class. I believe it is a weblogic bug. Can anybody have solution to fix it?
Thanks,
Bruce Xie
public EntityManager createEntityManager() {
if(emf == null) {
emf = Persistence.createEntityManagerFactory(persistenceUnitName);
return emf.createEntityManager();
Exception in thread "Main Thread" java.lang.NoClassDefFoundError: weblogic/management/configuration/DebugMBean
     at java.lang.ClassLoader.findBootstrapClass(Native Method)
     at java.lang.ClassLoader.findBootstrapClass0(ClassLoader.java:891)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:301)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
     at weblogic.xml.jaxp.RegistrySAXParserFactory.<clinit>(RegistrySAXParserFactory.java:27)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
     at java.lang.Class.newInstance0(Class.java:355)
     at java.lang.Class.newInstance(Class.java:308)
     at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:148)
     at javax.xml.parsers.FactoryFinder.findJarServiceProvider(FactoryFinder.java:298)
     at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:224)
     at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:128)
     at org.apache.openjpa.lib.xml.XMLFactory.<clinit>(XMLFactory.java:60)
     at org.apache.openjpa.lib.meta.XMLMetaDataParser.parseNewResource(XMLMetaDataParser.java:352)
     at org.apache.openjpa.lib.meta.XMLMetaDataParser.parse(XMLMetaDataParser.java:320)
     at org.apache.openjpa.lib.meta.XMLMetaDataParser.parse(XMLMetaDataParser.java:296)
     at org.apache.openjpa.lib.meta.XMLMetaDataParser.parse(XMLMetaDataParser.java:268)
     at org.apache.openjpa.persistence.PersistenceProductDerivation$ConfigurationParser.parse(PersistenceProductDerivation.java:510)
     at org.apache.openjpa.persistence.PersistenceProductDerivation.parseResources(PersistenceProductDerivation.java:360)
     at org.apache.openjpa.persistence.PersistenceProductDerivation.load(PersistenceProductDerivation.java:326)
     at org.apache.openjpa.persistence.PersistenceProductDerivation.load(PersistenceProductDerivation.java:161)
     at org.apache.openjpa.persistence.PersistenceProviderImpl.createEntityManagerFactory(PersistenceProviderImpl.java:77)
     at org.apache.openjpa.persistence.PersistenceProviderImpl.createEntityManagerFactory(PersistenceProviderImpl.java:109)
     at org.apache.openjpa.persistence.PersistenceProviderImpl.createEntityManagerFactory(PersistenceProviderImpl.java:53)
     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:84)
     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
     at JPATestBase.createEntityManager(JPATestBase.java:50)
     at JPATestBase.<init>(JPATestBase.java:23)
     at JPATestBase.main(JPATestBase.java:17)

Hi,
I do not see the DebugMBean class anywhere in the 3 com.bea.core.management.*.jar or 2 com.bea.core.mbean.*.jar libraries in the "modules" directory on WebLogic 10.3.0 - there is no longer a single webllogic.jar to check.
As a workaround try switching your persistence provider to EclipseLink by adding the following line to your persistence.xml and adding the EclipseLink library via the patching instructions below. If you are running WebLogic 10.3.1 then you will only need the provider line - as EclipseLink is shipped in this version.
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial#Option_2:_Apply_Smart_Update_Patch_-Recommendedfor_10.3.0.0
Also, there is a workaround to change the SAX parser you are using that is causing this issue - in the WebLogic forum that may solve this.
NoClassDefFoundError: weblogic/management/configuration/KernelDebugMBean
System.setProperty("javax.xml.parsers.DocumentBuilderFactory","org.apache.xerces.jaxp.DocumentBuilderFactoryImpl");
System.setProperty("javax.xml.parsers.SAXParserFactory", "org.apache.xerces.jaxp.SAXParserFactoryImpl");
thank you
/michael
www.eclipselink.org

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