Generate entities from tables causes validation errors with MySQL

When "generating entities from tables" using a MySQL datasource (eg: jdbc:mysql://localhost:3306/conferences), a conference table gives a Conference class with the following annotation:

@Table(name="Conference"
    ,catalog="conferences"
)

but the JPA validator reports an error on catalog="conferences", claiming that

"conferences" cannot be resolved for table "Conference"

This happens with both JPA tooling and Forge tooling.