I don't believe it does. This sounds like a bug.
Are you referring to EMF.getProperties? I wouldn't expect these to be
available from EM.getProperties.
I think it is reasonable that an environment be able to restrict the
availability of such information.
I think that adding something like the following to the discussion of
the EMF interface in the spec would
Note that the policies of the installation environment may restrict
some information from being made
available through the getProperties method (for example, JDBC user,
[jpa-spec users] [jsr338-experts] Re: EMF.getProperties() and EM.getProperties()