Wildfly crashing with hibernate-core-6.5.2.Final

Hibernate ORM
6

Your transaction handling looks a bit fishy to me. If you don’t want to use declarative transaction management, at least use a dedicated method taking a lambda to abstract this properly e.g.

public class HibernateUtil {

    ...

	public static void inTransaction(User user, Consumer<Session> function) {
		try ( Session session = getSession( user ) ) {
			final Transaction txn = session.getTransaction();
			txn.begin();
			try {
				function.accept( session );
			}
			catch (Throwable e) {
				try {
					txn.rollback();
				}
				finally {
					throw e;
				}
			}
			if ( !txn.getRollbackOnly() ) {
				txn.commit();
			}
			else {
				txn.rollback();
			}
		}
	}