As the above shows, there are two separate released artifacts:
The main release
      (org.starobjects.jpa:main) is a multimodule
      project that uses the corporate POM
      (org.starobjects.star:corporate) as its parent. It
      contains:
the applib
          (org.starobjects.jpa:applib)
The application library submodule defines ....
The applib uses
          org.starobjects.jpa:main as its
          parent.
the metamodel
          (org.starobjects.jpa:metamodel)
The metamodel submodule defines implementations of the Naked
          Objects' FacetFactory API
          that allow JPA semantics to be incorporated into
          the Naked Objects metamodel.
The metamodel also uses
          org.starobjects.jpa:main as its
          parent.
the runtime
          (org.starobjects.jpa:runtime)
The runtime submodule defines the implementations of the Naked
          Objects' ObjectsStore API
          that uses Hibernate to persist objects to the database.
The runtime also uses
          org.starobjects.jpa:main as its
          parent.
the tools
          (org.starobjects.jpa:tools)
The tools submodule defines command line utilities to allow the DBA to manage schemas and to seed the database using fixtures.
The runtime also uses
          org.starobjects.jpa:main as its
          parent.
the documentation
          (org.starobjects.jpa:documentation)
The documentation submodule contains the user and developers' guides
It also uses org.starobjects.jpa:main
          as its parent.
It uses the corporate POM (org.starobjects.star:corporate) as its parent.