Re: [DISCUSS] Support for Hibernate 7 (JPA 3.2) in TomEE 10.1.x ?

Any other thoughts on this?

> Am 07.07.2025 um 16:29 schrieb Richard Zowalla <[email protected]>:
> 
> Hi all,
> 
> I've been experimenting with Hibernate 7.0.5 recently, since the 6.6.x (EE10) version is no longer actively maintained.
> 
> As part of this, I noticed that JPA 3.2 introduces a number of new features and deprecations to the API (see: https://jakarta.ee/specifications/persistence/3.2/), though it does not remove any existing features.
> 
> However, upgrading to Hibernate 7.x currently fails when using a JTA transaction type in persistence.xml, due to the following error:
> 
> 
> 
> Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.jpa.internal.util.PersistenceUnitTransactionTypeHelper$1
> 
> 	at org.hibernate.jpa.internal.util.PersistenceUnitTransactionTypeHelper.toNewForm(PersistenceUnitTransactionTypeHelper.java:55)
> 
> 	at org.hibernate.jpa.boot.internal.PersistenceUnitInfoDescriptor.getPersistenceUnitTransactionType(PersistenceUnitInfoDescriptor.java:67)
> 
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.determineTransactionType(EntityManagerFactoryBuilderImpl.java:855)
> 
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.normalizeTransactionCoordinator(EntityManagerFactoryBuilderImpl.java:803)
> 
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.normalizeSettings(EntityManagerFactoryBuilderImpl.java:657)
> 
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.mergeSettings(EntityManagerFactoryBuilderImpl.java:592)
> 
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:224)
> 
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:173)
> 
> 
> To enable support for Hibernate 7 (which is quite widely adopted), I’d like to propose that we consider including the JPA 3.2 API in our EE API shade, and release a version like 10.1 (or similar). 
> 
> While this could potentially break signature tests in the API shade, it would unblock users who want to adopt Hibernate 7 today.
> 
> I’d love to get your thoughts on whether this is a direction we want to pursue.
> 
> Gruß
> 
> Richard
> 
> 
> 
> (Side note: we could start moving toward TomEE 11, but progress there is currently blocked due to CXF not being EE11-ready yet.)
> 
>