Hibernate Error – Initial SessionFactory creation failed.java.lang.NoClassDefFoundError: net/sf/cglib/proxy/CallbackFilter
Published: December 19, 2009 , Updated: December 28, 2009 , Author: mkyong
A common Hibernate’s error, this is caused by the missing dependency library – cglib.
Initial SessionFactory creation failed.java.lang.NoClassDefFoundError: net/sf/cglib/proxy/CallbackFilter Exception in thread "main" java.lang.ExceptionInInitializerError at com.mkyong.persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:18) at com.mkyong.persistence.HibernateUtil.<clinit>(HibernateUtil.java:8) at com.mkyong.common.App.main(App.java:17) Caused by: java.lang.NoClassDefFoundError: net/sf/cglib/proxy/CallbackFilter at org.hibernate.bytecode.cglib.BytecodeProviderImpl.getProxyFactoryFactory(BytecodeProviderImpl.java:33) at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactoryInternal(PojoEntityTuplizer.java:182) at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:160) at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:135) at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55) at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:56) at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:295) at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:434) at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:109) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:226) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294) at com.mkyong.persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:13) ... 2 more Caused by: java.lang.ClassNotFoundException: net.sf.cglib.proxy.CallbackFilter at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) ... 15 more
Solution
You can download the library here – http://cglib.sourceforge.net/
Or
Add the dependency in Maven’s pom.xml
<dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>2.2</version> </dependency>
[...] java.lang.NoClassDefFoundError: net/sf/cglib/proxy/CallbackFilter [...]