HibernateSystemException - Unknown entity class

Related content

  • No related content found

Still need help?

The Atlassian Community is here for you.

Ask the community

Symptoms

An error containing "org.springframework.orm.hibernate.HibernateSystemException: Unknown entity class:" such as the following appears in the atlassian-confluence.log:


org.springframework.orm.hibernate.HibernateSystemException: Unknown entity class: com.atlassian.confluence.user.persistence.dao.ConfluenceRememberMeToken; nested exception is net.sf.hibernate.MappingException: Unknown entity class: com.atlassian.confluence.user.persistence.dao.ConfluenceRememberMeToken
Caused by: net.sf.hibernate.MappingException: Unknown entity class: com.atlassian.confluence.user.persistence.dao.ConfluenceRememberMeToken
	at net.sf.hibernate.impl.SessionFactoryImpl.getPersister(SessionFactoryImpl.java:347)
	at net.sf.hibernate.impl.SessionImpl.getClassPersister(SessionImpl.java:2716)
	at net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2723)
	at net.sf.hibernate.impl.SessionImpl.saveWithGeneratedIdentifier(SessionImpl.java:772)
	at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:747)
	at org.springframework.orm.hibernate.HibernateTemplate$9.doInHibernate(HibernateTemplate.java:568)
	at org.springframework.orm.hibernate.HibernateTemplate.execute(HibernateTemplate.java:370)
	at org.springframework.orm.hibernate.HibernateTemplate.save(HibernateTemplate.java:565)
	at com.atlassian.confluence.user.rememberme.DefaultConfluenceRememberMeTokenDao.save(DefaultConfluenceRememberMeTokenDao.java:65)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)

Diagnosis

Check whether there are customisations to databaseSubsystemContext.xml.

  1. Is there a WEB-INF/classes/databaseSubsystemContext.xml file?
  2. Are there alterations to the databaseSubsystemContext.xml file within the confluence.jar file.

Cause

The databaseSubsystemContext.xml feeds the list of entity mappings to Hibernate. If this has been customised and not updated at upgrade-time, then it will be missing any new entity mappings that are resolved. So in 3.4 this means the ConfluenceRememberMeToken, but in future/earlier versions it will mean other entities.

Resolution

  1. Fix the databaseSubystemContext.xml. Either:
    • If there are no deliberate modifications to databaseSubsystemContext.xml, remove the file.
    • If there are deliberate modifications, then unzip databaseSubsystemContext.xml out of confluence.jar and re-apply the modifications
  2. Add -Datlassian.forceSchemaUpdate=true to Confluence's system properties. This will create any tables that were missed because of the missing entity mapping.
  3. Restart Confluence
  4. Check that extra tables are added and then remove the -Datlassian.forceSchemaUpdate=true flag.

Last modified on Mar 30, 2016

Was this helpful?

Yes
No
Provide feedback about this article

Related content

  • No related content found
Powered by Confluence and Scroll Viewport.