Java, JPA, Glassfish, Invalid resource : jdbc/__default__pm

Question

I use Glassfish 3.1.2.2 (build 5), JPA, EclipseLink, MySQL

I created MySQL pool via Glassfish admin panel. Ping to MySQL from GF admin panel is ok.

I created

Answer 1

I had the same problem and I firmly believe it is caused by some remainig-cache.

Just after I've done

asadmin remove-domain domain1
asadmin create-domain domain1 
firefox http://localhost:4848 

Now __pm is not appended anymore to JDBC resources.

if this does not help, then I assume that you are using

@PersistenceContext
EntityManager em;

this should be replaced with e.g.

em=Persistence.createEntityManagerFactory("DefaultPU(PUT_PERSISTANCE_UNIT_NAME_HERE").createEntityManager();
String ret="Hello " + txt + ", "+ em.createNamedQuery("Usertable.findAll").getResultList().get(0).toString() +" !" ;
em.close();