The goal of this ticket is to describe the different types of lock modes available in JPA/Hibernate, especially pessimistic locks without mentioning shared/exclusive locks in the documentation.

For details, see this mailing: http://lists.jboss.org/pipermail/hibernate-dev/2017-August/016370.html

I'd say it would be great if this could be a collaborative ticket, just discussing the ideas on the mailing list so everyone can reflect on the proposal.