MpUser u2 = eServer.find(MpUser.class, u.getId());
Assert.assertNotNull(u2);
u2.setName("Charlie Brown");
MpRole ourl = new MpRole();
ourl.setOrganizationId(47L);
u2.getRoles().put("one", ourl);
eServer.save(u2);
MpUser u3 = eServer.find(MpUser.class, u.getId());
Assert.assertEquals("Charlie Brown", u3.getName());
Map<String, MpRole> listMap = u3.getRoles();
Assert.assertEquals(1, listMap.size());
MpRole mpRole = listMap.get("one");
Assert.assertNotNull(mpRole);
Assert.assertEquals(Long.valueOf(47L), mpRole.getOrganizationId());
Assert.assertEquals("one", mpRole.getCode());
}