Criteria API (deprecated apis) are being heavily used by developer community because of it's robust and scalable features. But now, to support JPA2 it has been deprecated. But if we, people of this community support it by adding new features and fixing broken stuff, it will be really helpful for everyone who are still using it or want to use in future.
For further reference: https://discourse.hibernate.org/t/deprecation-of-hibernate-criteria-and-how-we-can-still-prevent-it/788/19?u=harpreetsandhu
@Vlad Mihalcea suggested to extract and move the old criteria codebase to new space.