Document: https://doc-stage.usersys.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform/7.0/single/development-guide#about_hql_predicates

Suggestions for improvement:

• After the first paragraph there is a redundant title "HQL Predicates". I think that it could be dropped since the section title is "About HQL Predicates"
• Some of the examples have comments, e.g. "// find any with name starting with "sp_"" - I suggest adding simple comments to all the examples.
• Typo "a evaluation" - should be "an evaluation"