javax.persistence.PersistenceException

\[PersistenceUnit: junit\] Unable to build EntityManagerFactory

Samebug tips10

This might be an issue with the file location in the Spark submit command. Try it with "spark-submit --master spark://master:7077 hello_world_from_pyspark.py {file location}"


rafaelrafael

Check if you've set a name in Application -> Run. If you didn't, the generated XML is gonna have missing information and then this exception will be thrown.


rafaelrafael

Don't give up yet. Our experts can help. Paste your full stack trace to get a solution.

Solutions on the web15143

  • via openxava by cholou
    ,
  • Stack trace

    • javax.persistence.PersistenceException: \[PersistenceUnit: junit\] Unable to build EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51) at org.openxava.jpa.XPersistence.getEntityManagerFactory(XPersistence.java:180) at org.openxava.jpa.XPersistence.createManager(XPersistence.java:108) at org.openxava.annotations.parse.AnnotatedClassParser.obtainManagedClassNamesUsingHibernate(AnnotatedClassParser.java:2170) at org.openxava.annotations.parse.AnnotatedClassParser.getManagedClassNames(AnnotatedClassParser.java:2086) at org.openxava.annotations.parse.AnnotatedClassParser.getClassNameFor(AnnotatedClassParser.java:2048) at org.openxava.annotations.parse.AnnotatedClassParser.parse(AnnotatedClassParser.java:53) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.openxava.util.Objects.execute(Objects.java:193) at org.openxava.util.Objects.execute(Objects.java:112) at org.openxava.component.ComponentParser.parseAnnotatedClass(ComponentParser.java:54) at org.openxava.component.ComponentParser.parse(ComponentParser.java:34) at org.openxava.component.MetaComponent.get(MetaComponent.java:60) at org.openxava.component.MetaComponent.exists(MetaComponent.java:75) at org.openxava.application.meta.MetaApplication.existsModel(MetaApplication.java:161) at org.openxava.application.meta.MetaApplication.getMetaModule(MetaApplication.java:149) at org.openxava.tests.ModuleTestBase.getMetaModule(ModuleTestBase.java:1382) at org.openxava.tests.ModuleTestBase.resetModule(ModuleTestBase.java:409) at org.openxava.tests.ModuleTestBase.setUp(ModuleTestBase.java:111) at junit.framework.TestCase.runBare(TestCase.java:128) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:120) at junit.framework.TestSuite.runTest(TestSuite.java:230) at junit.framework.TestSuite.run(TestSuite.java:225) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) Caused by: org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:89) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137) at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325) at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867) at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669) ... 36 more Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:123) at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84) ... 43 more

    Write tip

    You have a different solution? A short tip here would help you and many other users who saw this issue last week.

    Users with the same issue

    jokesterjokester
    Once,
    jshakiljshakil
    Once,
    Unknown visitor
    Unknown visitorOnce,
    Unknown visitor
    Unknown visitorOnce,
    davidvanlaatumdavidvanlaatum
    2 times, last one
    1380 more bugmates