DenormalizerInterface denormalize Cache key contains reserved characters {}()/\#: Entities with associations - php

Question

I have this Exception when try to convert array to object with associations.
In Contact entity is construct with Company entity.
EXCEPTION:
Cache key "pAppBundle\Entity\Companyid" contains reserved characters {}()/\#:
Controller:
class ContactController extends AbstractController
{
public function newAction(Request $request, Company $company, DenormalizerInterface $denormalizer)
{
$data = $request->get('contact');
$data['company'] = $company;
$denormalizer->denormalize($data, Contact::class);
}
}
Entity Company:
class Company {
/**
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue
*/
private $id;
/**
* #ORM\Column(type="string", name="name")
*/
private $name;
/**
* #ORM\OneToMany(targetEntity="AppBundle\Entity\Contact", mappedBy="company", cascade={"ALL"})
*/
private $contacts;
}
Entity Contact:
class Contact {
/**
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue
*/
private $id;
/**
* #ORM\Column(type="string", name="text")
*/
private $text;
/**
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\Company", inversedBy="contacts")
* #ORM\JoinColumn(name="company_id", referencedColumnName="id")
*/
private $company;
public function __construct(Company $company)
{
$this->company = $company;
$this->files = new \Doctrine\Common\Collections\ArrayCollection();
}
}