Hibernate Troubleshooting

If you have the following errors, just drag the jar file to your lib folder

java.lang.NoClassDefFoundError: org/dom4j/DocumentException

copy this to your lib: dom4j-1.6.1.jar

java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

copy this to your lib: slf4j-api-1.6.1.jar

java.lang.NoClassDefFoundError: javax/persistence/EntityListeners

copy this to your lib: hibernate-jpa-2.0-api-1.0.0.Final.jar

org.hibernate.HibernateException: JDBC Driver class not found: org.postgresql.Driver

copy this to your lib: postgresql-9.0-801.jdbc4.jar
download the latest Postgresql jdbc jar file from postgresql.org

java.lang.NoClassDefFoundError: org/apache/commons/collections/map/LRUMap

copy this to your lib: commons-collections-3.1.jar

org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]

copy this to your lib: javassist-3.12.0.GA.jar

java.lang.NoClassDefFoundError: javax/transaction/Synchronization

copy this to your lib: jta-1.1.jar