Querying Experimenters produces strange results and exception

[jmoore]

        Login l = new Login(...);
        Server s = new Server(...);
        ServiceFactory sf = new ServiceFactory(s,l);
        List<Experimenter> list = sf.getQueryService().findAll(Experimenter.class, null);
        System.out.println(list);
        Set<Experimenter> set = new HashSet<Experimenter>(list);
        System.out.println(set);

produces:

[Experimenter:Id_0, Experimenter:Id_4, Experimenter:Id_5, Experimenter:Id_5, Experimenter:Id_15, Experimenter:Id_15, Experimenter:Id_15, Experimenter:Id_15, Experimenter:Id_16, Experimenter:Id_16, Experimenter:Id_16, Experimenter:Id_17, Experimenter:Id_18, Experimenter:Id_18, Experimenter:Id_19, Experimenter:Id_21]
[Experimenter:Id_4, Experimenter:Id_19, Experimenter:Id_21, Experimenter:Id_18, Experimenter:Id_15, Experimenter:Id_5, Experimenter:Id_0, Experimenter:Id_17, Experimenter:Id_16]
PASSED: mageHasTooManyExperimenters

Then calling get on one of the duplicated ids produces:

sf.getQueryService().get(Experimenter.class, 15l);

ome.conditions.InternalException:  Wrapped Exception: (org.springframework.orm.hibernate3.HibernateSystemException):
More than one row with the given identifier was found: 15, for class: ome.model.meta.Experimenter; nested exception is org.hibernate.HibernateException: More than one row with the given identifier was found: 15, for class: ome.model.meta.Experimenter

[jmoore]

r1575 should solve this. It's most likely occuring because of the multiple experimenter/group links that were being created. Can one of you (Chris/Ola) try to reproduce before and after applying this patch? (I never saw it here locally only with mage)

The multiple groupexperimentermaps is something we should perhaps look into. We can discuss on the conference call: http://cvs.openmicroscopy.org.uk/tiki/tiki-index.php?page=ConferenceCall+2007-06-01