Externalize credentials from persistence.xml in J2SE app

Question

I\'m writing a J2SE app (no enterprise container) that uses JPA for persistence. Here is my persistence.xml:

Answer 1

You can provide additional properties when creating EntityManagerFactory:

Map properties = new HashMap();
properties.put("javax.persistence.jdbc.user", ...);
...

emf = Persistence.createEntityManagerFactory("dbstats", properties);