[jboss-jira] [JBoss JIRA] (WFLY-6149) Improve control over 'hibernate.id.new_generator_mappings' setting

From a discussion in the [Hibernate ORM Dev Hipchat room|https://www.hipchat.com/gDZHRKgWN], I heard that Hibernate ORM is looking into having system properties take precedence over the persistence.xml settings.

Improve control over 'hibernate.id.new_generator_mappings' setting ------------------------------------------------------------------ Key: WFLY-6149 URL: https://issues.jboss.org/browse/WFLY-6149 Project: WildFly Issue Type: Feature Request Components: JPA / Hibernate Affects Versions: 9.0.2.Final, 10.0.0.Final Reporter: Chris Poulsen It would be great if Wildfly offered better control over the properties used for configuring persistence units. For instance the 'hibernate.id.new_generator_mappings' setting has proven hard to control it currently requires one to change persistence.xml to turn it off. Hibernate supports specifying the properties in various ways, for example via system properties, but wildfly forces the new mappings to be enabled unless the persistence.xml says to disable them. There are some suggestions to how [~smarlow] imagines this to be implemented in the forum thread: https://developer.jboss.org/thread/267613