java.lang.NoClassDefFoundError: org/hibernate/cache/EntityRegion configuring EHCache
I'm trying to add ehcache (v2.6.0) to my Hibernate 4.1.5.SP1 project, but having some configuration issues. Specifically, I'm getting a java.lang.NoClassDefFoundError: org/hibernate/cache/EntityRegion error when I try and build my Hibernate configuration with
<property name="hibernate.cache.use_second_level_cache">true</property>
<property name="hibernate.cache.region.factory_class">net.sf.ehcache.hibernate.EhCacheRegionFactory</property>
Here's my Maven dependencies ...
<hibernate.version>4.1.5.SP1</hibernate.version>
<hibernate.validator.version>4.3.0.Final</hibernate.validator.version>
<ehcacheVersion>2.6.0</ehcacheVersion>
...
<!-- Hibernate dependencies -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate.validator.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>${ehcacheVersion}</version>
</dependency>
Here's the Java code I use to configure it ...
Configuration config = new Configuration()
.setProperty("hibernate.dialect", "org.hibernate.dialect.HSQLDialect")
.setProperty("hibernate.connection.driver_class", "org.hsqldb.jdbcDriver")
.setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:myprojectTestDb")
.setProperty("hibernate.connection.username", "sa")
.setProperty("hibernate.connection.password", "")
.setProperty("hibernate.connection.pool_size", "1")
.setProperty("hibernate.connection.autocommit", "true")
.setProperty("hibernate.cache.provider_class", "org.hibernate.cache.HashtableCacheProvider")
.setProperty("hibernate.hbm2ddl.auto", "create-drop")
.setProperty("hibernate.show_sql", "true")
.setProperty("hibernate.current_session_context_class", "thread")
.setProperty("hibernate.cache.use_second_level_cache", "true")
.setProperty("hibernate.cache.region.factory_class", "net.sf.ehcache.hibernate.EhCacheRegionFactory")
.addAnnotatedClass(Organization.class)
.addAnnotatedClass(State.class)
.addAnnotatedClass(Country.class)
.addAnnotatedClass(Domain.class)
.addAnnotatedClass(Community.class);
final ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(config.getProperties()).buildServiceRegistry();
sessionFactory = config.buildSessionFactory(serviceRegistry);
and here's the hideous error. WHat configuration am I missing?
java.lang.NoClassDefFoundError: org/hibernate/cache/EntityRegion
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getConstructor(Unknown Source)
at org.hibernate.cfg.SettingsFactory.createRegionFactory(SettingsFactory.java:386)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:251)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2270)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2266)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1735)
at org.mainco.subco.orgsclient.service.OrganizationServiceTest.setupOrgServiceTest(OrganizationServiceTest.java:56)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.ClassNotFoundException: org.hibernate.cache.EntityRegion
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)
... 32 more
Answer
ehcache-core files are basically for Hibernate 3.x. Hibernate 4.x comes with its own implementation for ehcache. You don't need to use ehcache explicitly in hibernate 4.x. Here is the best answer for your problem.