ce = context.addInitializedCollection(lce.collection, persister, lce.key, em);
ce = context.addInitializedCollection(persister, lce.collection, lce.key);
ce = context.addInitializedCollection(lce.collection, persister, lce.key, em);
ce = context.addInitializedCollection(persister, lce.collection, lce.key);