While importing to Red Hat Developer Studio the following quickstarts:

• bean-validation
• contacts-jquerymobile
• hibernate
• kitchensink
• kitchensink-angularjs
• kitchensink-ear
• kitchensink-jsp
• kitchensink-ml
• spring-kitchensink-basic

have the following warnings:

The type Email is deprecated (org.hibernate.validator.constraints.Email)
The type NotEmpty is deprecated (org.hibernate.validator.constraints.NotEmpty)

Used software versions are in the issue environment section.