Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNGIwOTRlY2E1... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16150?atlOrigin=eyJpIjoiNGIwOT... ) HHH-16150 ( https://hibernate.atlassian.net/browse/HHH-16150?atlOrigin=eyJpIjoiNGIwOT... ) Hibernate ORM no longer drops the schema when using the create-drop strategy and a session factory observer throws an exception on startup ( https://hibernate.atlassian.net/browse/HHH-16150?atlOrigin=eyJpIjoiNGIwOT... ) Issue Type: Bug Affects Versions: 6.2.0.CR2 Assignee: Unassigned Components: hibernate-core Created: 07/Feb/2023 04:12 AM Fix Versions: 6.2.0 Priority: Major Reporter: Yoann Rodière ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) Regression in ORM 6. I think it’s specific to ORM 6.2, because I’ve never encountered this problem with ORM 6.0/6.1, but I’m not 100% sure (maybe the problem just wasn’t as visible in Hibernate Search before). The scenario: * Hibernate ORM boots. While building the session factory, it calls sessionFactoryCreated on all session factory observers. * In ORM 6.2, this means in particular calling org.hibernate.boot.internal.SessionFactoryObserverForSchemaExport#sessionFactoryCreated , which successfully creates the DB schema. * One of the next observers (say, Hibernate Search’s) throws an exception from sessionFactoryCreated (say, because the Hibernate Search mapping is invalid). * Hibernate ORM catches that exception and attempts to close the session factory. * Upon closing, the session factory calls sessionFactoryClosing on all session factory observers. * In ORM 6.2, this means in particular calling org.hibernate.boot.internal.SessionFactoryObserverForSchemaExport#sessionFactoryClosing. That last call fails with the following exception: org.hibernate.service.UnknownServiceException: Unknown service requested [org.hibernate.engine.jdbc.spi.JdbcServices] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:212) at org.hibernate.service.internal.SessionFactoryServiceRegistryImpl.getService(SessionFactoryServiceRegistryImpl.java:100) at org.hibernate.tool.schema.internal.SchemaDropperImpl$DelayedDropActionImpl$JdbcContextDelayedDropImpl.<init>(SchemaDropperImpl.java:677) at org.hibernate.tool.schema.internal.SchemaDropperImpl$DelayedDropActionImpl.perform(SchemaDropperImpl.java:641) at org.hibernate.boot.internal.SessionFactoryObserverForSchemaExport.sessionFactoryClosing(SessionFactoryObserverForSchemaExport.java:48) at org.hibernate.internal.SessionFactoryObserverChain.sessionFactoryClosing(SessionFactoryObserverChain.java:48) at org.hibernate.internal.SessionFactoryImpl.close(SessionFactoryImpl.java:838) at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:377) In Hibernate ORM 5, things were a bit different (e.g. schema creation/drop was not done in an observer, see https://github.com/hibernate/hibernate-search/pull/3396/commits/9b18a1ed3... ( https://github.com/hibernate/hibernate-search/pull/3396/commits/9b18a1ed3... ) ), so it’s hard to pinpoint where the problem was introduced exactly; but I can say at least that we didn’t get that exception in Hibernate ORM 5 and the schema was properly dropped. I believe the problem is here: https://github.com/hibernate/hibernate-orm/blob/63715770e94f18137d9d63f7d... ( https://github.com/hibernate/hibernate-orm/blob/63715770e94f18137d9d63f7d... ) It seems odd that we close the service registry after closing each integrator? I’d expect closing the service registry to be one of the very last things we do. ( https://hibernate.atlassian.net/browse/HHH-16150#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16150#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100214- sha1:c33f0bb )