When I gave correct persistence unit name ..the following errors occured..
javax.persistence.PersistenceException: org.hibernate.HibernateException: Could not find datasource at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:217) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:114) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:27) at at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:529) at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:311) at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:149) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:77) at org.testng.TestRunner.privateRun(TestRunner.java:614) at org.testng.TestRunner.run(TestRunner.java:505) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:221) at org.testng.SuiteRunner.run(SuiteRunner.java:147) at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:576) at org.testng.TestNG.runSuitesLocally(TestNG.java:539) at org.testng.TestNG.run(TestNG.java:316) at org.testng.TestNG.privateMain(TestNG.java:666) at org.testng.TestNG.main(TestNG.java:608) Caused by: org.hibernate.HibernateException: Could not find datasource at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:56) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124) at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:61) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1928) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1211) at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:631) at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:760) at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:151) at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:205) ... 21 more Caused by: javax.naming.NamingException: Local server is not initialized at org.jnp.interfaces.LocalOnlyContextFactory.getInitialContext(LocalOnlyContextFactory.java:45) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext.(InitialContext.java:175) at org.hibernate.util.NamingHelper.getInitialContext(NamingHelper.java:28) at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:52) ... 30 more javax.el.PropertyNotFoundException: ELResolver cannot handle a null base Object with identifier 'user' at com.sun.el.lang.ELSupport.throwUnhandled(ELSupport.java:52) at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:75) at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:195) at org.jboss.seam.util.UnifiedELValueBinding.getValue(UnifiedELValueBinding.java:34) at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:69) at org.jboss.seam.core.Expressions.validate(Expressions.java:223) at org.jboss.seam.mock.SeamTest$Request.validateValue(SeamTest.java:383) at AuthenticatorTest$1.processValidations(AuthenticatorTest.java:42) at org.jboss.seam.mock.SeamTest$Request.run(SeamTest.java:465) at at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:529) at org.testng.internal.Invoker.invokeMethod(Invoker.java:398) at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:625) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:88) at org.testng.TestRunner.privateRun(TestRunner.java:614) at org.testng.TestRunner.run(TestRunner.java:505) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:221) at org.testng.SuiteRunner.run(SuiteRunner.java:147) at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:576) at org.testng.TestNG.runSuitesLocally(TestNG.java:539) at org.testng.TestNG.run(TestNG.java:316) at org.testng.TestNG.privateMain(TestNG.java:666) at org.testng.TestNG.main(TestNG.java:608) View the original post : 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