spl_object_hash() expects parameter 1 to be object, null given in UnitOfWork line 2725

[michsk]

So i started to play with the SecondLevelCache. And somehow just got this warning:
Warning: spl_object_hash() expects parameter 1 to be object, null given in vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php on line

That line is $newValueOid = spl_object_hash($newValue);. Somehow we cant find the newValue.

[michsk]

Seems to have to do with @ORM\ManyToOne(targetEntity="\Namespace\Domain\Entity\Option\Layout", inversedBy="elements", fetch="EAGER")

which can be null

[lcobucci]

@Michal-sk are you using 2.5.x or master?

[lcobucci]

@Michal-sk I'm asking because we fixed a lot of issues related to L2C and they will just be available on v2.6 (that we don't have a release date yet).

Would be very helpful if you could test your application with 2.6.x-dev and check if that problem still happens.

[michsk]

"doctrine/orm": "^2", with the "minimum-stability": "stable",

I see where this goes wrong though, when there is a relation to a entity that does not exist. So i have a Element that has a reverence to a Layout that does nto exist.

[michsk]

will check with 2.6

[Ocramius]

This needs an integration test - see https://github.com/doctrine/doctrine2/tree/v2.5.6/tests/Doctrine/Tests/ORM/Functional/Ticket