"Class is not a valid entity..." error for EntityManager#getClassMetadata(...) - doctrine-orm

Question

I'm trying to write a test case for to post it on the Doctrine's GitHub page and have a problem with schema generating. The call
$this->_em->getClassMetadata(Server::class)
causes the exception
Class "Doctrine\Tests\Models\DDC6786\Server" is not a valid entity or mapped super class.
What am I doing wrong ? / How to get it working?
CODE
DDC6786Test
namespace Doctrine\Tests\ORM\Functional\Ticket;
use Doctrine\Tests\Models\DDC6786\Endpoint;
use Doctrine\Tests\Models\DDC6786\EndpointServerConfig;
use Doctrine\Tests\Models\DDC6786\Server;
use Doctrine\Tests\OrmFunctionalTestCase;
class DDC6786Test extends OrmFunctionalTestCase
{
public function testIssue()
{
$this->assertTrue(true);
}
public function setUp()
{
parent::setUp();
try {
$this->_schemaTool->createSchema(
[
$this->_em->getClassMetadata(Server::class),
$this->_em->getClassMetadata(EndpointServerConfig::class),
$this->_em->getClassMetadata(Endpoint::class),
]
);
} catch(\Exception $e) {
$breakpoint = null;
}
}
}
Endpoint
namespace Doctrine\Tests\Models\DDC6786;
use Doctrine\ORM\Mapping as ORM;
use ReflectionClass;
/**
* Endpoint
*
* #ORM\Table(name="endpoint")
* #ORM\Entity
*/
class Endpoint
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #var string
*
* #ORM\Column(name="role", type="string", nullable=true)
*/
protected $role;
/**
* #var string
*
* #ORM\Column(name="server_place", type="string", nullable=true)
*
* #Groups({"export"})
*/
protected $serverPlace;
/**
* #var string
*
* #ORM\Column(name="contact_person", type="string", length=500, nullable=true)
*
* #Groups({"export"})
*/
protected $contactPerson;
/**
* #var \DateTime
*
* #ORM\Column(name="created", type="datetime", nullable=false)
*/
protected $created;
/**
* #var \DateTime
*
* #ORM\Column(name="updated", type="datetime", nullable=true)
*/
protected $updated;
/**
* #var EndpointServerConfig
*
* #ORM\OneToOne(targetEntity="EndpointServerConfig", inversedBy="endpoint", cascade={"persist"})
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="endpoint_server_config_id", referencedColumnName="id")
* })
*
* #Groups({"export"})
*/
protected $endpointServerConfig;
/**
* #param integer $id
*
* #return Endpoint
*/
public function setId($id)
{
$this->id = $id;
return $this;
}
/**
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* #param string $role
*
* #return Endpoint
*/
public function setRole($role)
{
$this->role = $role;
return $this;
}
/**
* #return string
*/
public function getRole()
{
return $this->role;
}
/**
* #param string $type
*
* #return Endpoint
*/
public function setType($type)
{
$this->type = $type;
return $this;
}
/**
* #return string
*
* #Groups({"export"})
*/
public function getType()
{
return str_replace(
'Endpoint',
'',
(new ReflectionClass($this))->getShortName()
);
}
/**
* #param string $serverPlace
*
* #return Endpoint
*/
public function setServerPlace($serverPlace)
{
$this->serverPlace = $serverPlace;
return $this;
}
/**
* #return string
*/
public function getServerPlace()
{
return $this->serverPlace;
}
/**
* #param string $contactPerson
*
* #return Endpoint
*/
public function setContactPerson($contactPerson)
{
$this->contactPerson = $contactPerson;
return $this;
}
/**
* #return string
*/
public function getContactPerson()
{
return $this->contactPerson;
}
/**
* #param \DateTime $created
*
* #return Endpoint
*/
public function setCreated($created)
{
$this->created = $created;
return $this;
}
/**
* #return \DateTime
*/
public function getCreated()
{
return $this->created;
}
/**
* #param \DateTime $updated
*
* #return Endpoint
*/
public function setUpdated($updated)
{
$this->updated = $updated;
return $this;
}
/**
* #return \DateTime
*/
public function getUpdated()
{
return $this->updated;
}
/**
* #param EndpointServerConfig $endpointServerConfig
*
* #return Endpoint
*/
public function setEndpointServerConfig(EndpointServerConfig $endpointServerConfig = null)
{
$this->endpointServerConfig = $endpointServerConfig;
return $this;
}
/**
* #return EndpointServerConfig
*/
public function getEndpointServerConfig()
{
return $this->endpointServerConfig;
}
}
EndpointServerConfig
namespace Doctrine\Tests\Models\DDC6786;
use Doctrine\ORM\Mapping as ORM;
/**
* EndpointServerConfig
*
* #ORM\Table(name="endpoint_server_config", indexes={
* #ORM\Index(name="fk_endpoint_server_config_server_idx", columns={"server_name"})}
* )
* #ORM\Entity
*/
class EndpointServerConfig
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #var string
*
* #ORM\Column(name="dns_address", type="string", length=253, nullable=true)
*/
protected $dnsAddress;
/**
* #var Server
*
* #ORM\ManyToOne(targetEntity="Server")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="server_name", referencedColumnName="name")
* })
*/
protected $server;
/**
* #var Endpoint
*
* #ORM\OneToOne(targetEntity="Endpoint", mappedBy="endpointServerConfig")
*/
protected $endpoint;
/**
* #param integer $id
*
* #return EndpointServerConfig
*/
public function setId($id)
{
$this->id = $id;
return $this;
}
/**
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* #param string $dnsAddress
*
* #return EndpointServerConfig
*/
public function setDnsAddress($dnsAddress)
{
$this->dnsAddress = $dnsAddress;
return $this;
}
/**
* #return string
*/
public function getDnsAddress()
{
return $this->dnsAddress;
}
/**
* #param Server $server
*
* #return EndpointServerConfig
*/
public function setServer(Server $server = null)
{
if(! $server || ! $server->getName()) {
$server = null;
}
$this->server = $server;
return $this;
}
/**
* #return Server
*/
public function getServer()
{
return $this->server;
}
/**
* #param Endpoint $endpoint
*
* #return EndpointServerConfig
*/
public function setEndpoint($endpoint)
{
$this->endpoint = $endpoint;
return $this;
}
/**
* #return Endpoint
*/
public function getEndpoint()
{
return $this->endpoint;
}
}
Server
namespace Doctrine\Tests\Models\DDC6786;
use Doctrine\ORM\Mapping as ORM;
/**
* Server
*
* #ORM\Table(name="server")
* #ORM\Entity
*
* #author automatix
*/
class Server
{
/**
* #var string
*
* #ORM\Column(name="name", type="string", length=32, nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="NONE")
*/
protected $name;
/**
* #var boolean
*
* #ORM\Column(name="active", type="boolean", nullable=true)
*/
protected $active;
/**
* #var \DateTime
*
* #ORM\Column(name="updated", type="datetime", nullable=true)
*/
protected $updated;
/**
* #var string
*
* #ORM\Column(name="node_name", type="string", length=50, nullable=true)
*/
protected $nodeName;
/**
* #var string
*
* #ORM\Column(name="virtual_node_name", type="string", length=50, nullable=true)
*/
protected $virtualNodeName;
/**
* Not relevant for ORM. Should become obsolete after and be removed after the migration to Doctrine.
*
* #var EndpointServerConfig[]
*/
protected $endpointServerConfigs;
/**
* #param string $name
*
* #return Server
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* #return string
*/
public function getName()
{
return $this->name;
}
/**
* #param boolean $active
*
* #return Server
*/
public function setActive($active)
{
$this->active = $active;
return $this;
}
/**
* #return boolean
*/
public function getActive()
{
return $this->active;
}
/**
* #param \DateTime $updated
*
* #return Server
*/
public function setUpdated($updated)
{
$this->updated = $updated;
return $this;
}
/**
* #return \DateTime
*/
public function getUpdated()
{
return $this->updated;
}
/**
* #param string $nodeName
*
* #return Server
*/
public function setNodeName($nodeName)
{
$this->nodeName = $nodeName;
return $this;
}
/**
* #return string
*/
public function getNodeName()
{
return $this->nodeName;
}
/**
* #param string $virtualNodeName
*
* #return Server
*/
public function setVirtualNodeName($virtualNodeName)
{
$this->virtualNodeName = $virtualNodeName;
return $this;
}
/**
* #return string
*/
public function getVirtualNodeName()
{
return $this->virtualNodeName;
}
/**
* #param EndpointServerConfig[] $endpointServerConfigs
*
* #return Server
*/
public function setEndpointServerConfigs($endpointServerConfigs)
{
$this->endpointServerConfigs = $endpointServerConfigs;
return $this;
}
/**
* #return EndpointServerConfig[] $endpointServerConfigs
*/
public function getEndpointServerConfigs()
{
return $this->endpointServerConfigs;
}
}

Answer 1

The problem was caused by the annotations. use Doctrine\ORM\Mapping as ORM; & #ORM\Entity doesn't work, but just #ORM\Entity (and #ORM\Table etc.) does.