Error : when i need generate entities by hibernate

Question

i canot create hibernate.cfg.xml and i can`t understand this error because i set dialect data base oracle 10g but i use oracle database 11 xe

Error : Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100)

org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.(InFlightMetadataCollectorImpl.java:179) at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:119) at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:84) at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:474) at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:85) at org.hibernate.boot.MetadataSources.buildMetadata(MetadataSources.java:184) at org.jboss.tools.hibernate.runtime.v_5_3.internal.util.MetadataHelper.buildFromMetadataSources(MetadataHelper.java:49) at org.jboss.tools.hibernate.runtime.v_5_3.internal.util.MetadataHelper.getMetadata(MetadataHelper.java:21) at org.jboss.tools.hibernate.runtime.v_5_3.internal.ConfigurationFacadeImpl.getMetadata(ConfigurationFacadeImpl.java:174) at org.jboss.tools.hibernate.runtime.v_5_3.internal.util.ConfigurationMetadataDescriptor.createMetadata(ConfigurationMetadataDescriptor.java:20) at org.hibernate.tool.hbm2x.AbstractExporter.buildMetadata(AbstractExporter.java:207) at org.hibernate.tool.hbm2x.AbstractExporter.getMetadata(AbstractExporter.java:57) at org.hibernate.tool.hbm2x.AbstractExporter.setupContext(AbstractExporter.java:178) at org.hibernate.tool.hbm2x.AbstractExporter.start(AbstractExporter.java:105) at sun.reflect.GeneratedMethodAccessor581.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.jboss.tools.hibernate.runtime.common.Util.invokeMethod(Util.java:43) at org.jboss.tools.hibernate.runtime.common.AbstractExporterFacade.start(AbstractExporterFacade.java:72) at org.hibernate.eclipse.console.wizards.NewConfigurationWizard.openContentStream(NewConfigurationWizard.java:301) at org.hibernate.eclipse.console.wizards.NewConfigurationWizard.access$2(NewConfigurationWizard.java:295) at org.hibernate.eclipse.console.wizards.NewConfigurationWizard$1.getInitialContents(NewConfigurationWizard.java:163) at org.eclipse.ui.dialogs.WizardNewFileCreationPage.createNewFile(WizardNewFileCreationPage.java:380) at org.hibernate.eclipse.console.wizards.NewConfigurationWizard.performFinish(NewConfigurationWizard.java:198) at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:772) at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:411) at org.eclipse.jface.dialogs.Dialog.lambda$0(Dialog.java:619) at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:81) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:249) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5686) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1370) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4940) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4518) at org.eclipse.jface.window.Window.runEventLoop(Window.java:818) at org.eclipse.jface.window.Window.open(Window.java:794) at org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:133) at org.eclipse.jface.action.Action.runWithEvent(Action.java:473) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:565) at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:397) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5686) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1370) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4940) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4518) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1170) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1059) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:667) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:597) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592) at org.eclipse.equinox.launcher.Main.run(Main.java:1498) at org.eclipse.equinox.launcher.Main.main(Main.java:1471) Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100) at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54) at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:137) at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:94) at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ... 73 more

public class HibernateUtils {

    private static SessionFactory sessionFactory;
    static {
           try {
            StandardServiceRegistry standardRegistry = 
               new StandardServiceRegistryBuilder().configure("hibernate.cfg.xml").build();
            Metadata metaData = 
                new MetadataSources(standardRegistry).getMetadataBuilder().build();
            sessionFactory = metaData.getSessionFactoryBuilder().build();
           } catch (Throwable th) {
            System.err.println("Enitial SessionFactory creation failed" + th);
            throw new ExceptionInInitializerError(th);
          }
        }

}