I can not deploy my Java EE app on GlassFish as I have this build path warning on the Problems view:
Description Resource Path Location Type Classpath entry eclipse.fproj.jdt.libprov.osgi/jpt.jpa is marked for publish/export but is not exported on the project classpath. Classpath visibility within Eclipse and at runtime will differ. declaration-reglementaire-dao P/declaration-reglementaire-dao Classpath Dependency Validator Message
And this one:
Description Resource Path Location Type Facet version for Enterprise Application project declaration-reglementaire-ear must be 5.0 to contain Java EE 5.0 project declaration-reglementaire-serviceweb. declaration-reglementaire-ear P/declaration-reglementaire-ear Enterprise Application Validator Message
Solved it. I had it marked as a Java EE module dependency, but I didn't have it selected for export. In the project properties window I went to Java Build Path > Order and Export and placed a check next to the entry for OSGi Bundels (JPA).