title: JPA Facet cannot be activated in Eclipse
body: <p>If I try to activate the "JPA Facet" for my Eclipse (Juno) project and point it to a user library containing the JPA libraries (in my case OpenJPA) I get the error:</p>
  
  <p><em>"The class 'javax.persistence.Entity' is required to be in the selected libraries."</em></p>
  
  <p>But this class is present there!</p>