diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 8aa7268a1b9..98b1882de43 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -50,7 +50,6 @@ parameters:
 			message: '#but database expects#'
 			paths:
 				- tests/Fixtures/TestBundle/Entity/
-		- '#Cannot call method add\(\) on iterable.#'
 		-
 			message: '#is never read, only written.#'
 			paths:
diff --git a/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/Dummy.php b/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/Dummy.php
index ffc3edf77c3..dc2f7293720 100644
--- a/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/Dummy.php
+++ b/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/Dummy.php
@@ -104,7 +104,7 @@ class Dummy
     public ?RelatedDummy $relatedDummy = null;
 
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @var array|null serialize data
@@ -302,7 +302,7 @@ public function getDummy()
         return $this->dummy;
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
diff --git a/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/FourthLevel.php b/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/FourthLevel.php
index 0a4b7288979..6620a29ffe7 100644
--- a/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/FourthLevel.php
+++ b/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/FourthLevel.php
@@ -46,7 +46,7 @@ class FourthLevel
     #[Groups(['barcelona', 'chicago'])]
     private int $level = 4;
     #[ORM\OneToMany(targetEntity: ThirdLevel::class, cascade: ['persist'], mappedBy: 'badFourthLevel')]
-    public Collection|iterable|null $badThirdLevel = null;
+    public ?Collection $badThirdLevel = null;
 
     public function getId(): ?int
     {
diff --git a/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/RelatedDummy.php b/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/RelatedDummy.php
index 019d66c6234..4d0891d0b4c 100644
--- a/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/RelatedDummy.php
+++ b/src/Doctrine/Common/Tests/Fixtures/TestBundle/Entity/RelatedDummy.php
@@ -84,7 +84,7 @@ class RelatedDummy extends ParentDummy implements \Stringable
 
     #[ORM\OneToMany(targetEntity: RelatedToDummyFriend::class, cascade: ['persist'], mappedBy: 'relatedDummy')]
     #[Groups(['fakemanytomany', 'friends'])]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
 
     /**
      * @var bool|null A dummy bool
@@ -169,7 +169,7 @@ public function setThirdLevel(?ThirdLevel $thirdLevel = null): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/src/Doctrine/Odm/Tests/Fixtures/Document/Dummy.php b/src/Doctrine/Odm/Tests/Fixtures/Document/Dummy.php
index 92eab69cfc5..ef5e3559b54 100644
--- a/src/Doctrine/Odm/Tests/Fixtures/Document/Dummy.php
+++ b/src/Doctrine/Odm/Tests/Fixtures/Document/Dummy.php
@@ -77,7 +77,7 @@ class Dummy
     #[ODM\ReferenceOne(targetDocument: RelatedDummy::class, storeAs: 'id', nullable: true)]
     public ?RelatedDummy $relatedDummy = null;
     #[ODM\ReferenceMany(targetDocument: RelatedDummy::class, storeAs: 'id', nullable: true)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
     #[ODM\Field(type: 'hash', nullable: true)]
     public array $jsonData = [];
     #[ODM\Field(type: 'collection', nullable: true)]
diff --git a/src/Doctrine/Odm/Tests/Fixtures/Document/FourthLevel.php b/src/Doctrine/Odm/Tests/Fixtures/Document/FourthLevel.php
index 38dfc0488b1..c949f56c6a1 100644
--- a/src/Doctrine/Odm/Tests/Fixtures/Document/FourthLevel.php
+++ b/src/Doctrine/Odm/Tests/Fixtures/Document/FourthLevel.php
@@ -32,7 +32,7 @@ class FourthLevel
     #[ODM\Field(type: 'int')]
     private ?int $level = 4;
     #[ODM\ReferenceMany(targetDocument: ThirdLevel::class, cascade: ['persist'], mappedBy: 'badFourthLevel', storeAs: 'id')]
-    public Collection|iterable|null $badThirdLevel = null;
+    public ?Collection $badThirdLevel = null;
 
     public function getId(): ?int
     {
diff --git a/src/Doctrine/Odm/Tests/Fixtures/Document/RelatedDummy.php b/src/Doctrine/Odm/Tests/Fixtures/Document/RelatedDummy.php
index ecb3cfa75a6..858dd2fc2bf 100644
--- a/src/Doctrine/Odm/Tests/Fixtures/Document/RelatedDummy.php
+++ b/src/Doctrine/Odm/Tests/Fixtures/Document/RelatedDummy.php
@@ -43,7 +43,7 @@ class RelatedDummy extends ParentDummy implements \Stringable
     #[ODM\ReferenceOne(targetDocument: ThirdLevel::class, cascade: ['persist'], nullable: true, storeAs: 'id', inversedBy: 'relatedDummies')]
     public ?ThirdLevel $thirdLevel = null;
     #[ODM\ReferenceMany(targetDocument: RelatedToDummyFriend::class, cascade: ['persist'], mappedBy: 'relatedDummy', storeAs: 'id')]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
     #[ODM\Field(type: 'bool')]
     public ?bool $dummyBoolean = null;
     #[ODM\EmbedOne(targetDocument: EmbeddableDummy::class)]
@@ -121,7 +121,7 @@ public function setThirdLevel(?ThirdLevel $thirdLevel = null): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/src/Doctrine/Odm/Tests/Fixtures/Document/ThirdLevel.php b/src/Doctrine/Odm/Tests/Fixtures/Document/ThirdLevel.php
index 469a0c86e50..6dbef98acd9 100644
--- a/src/Doctrine/Odm/Tests/Fixtures/Document/ThirdLevel.php
+++ b/src/Doctrine/Odm/Tests/Fixtures/Document/ThirdLevel.php
@@ -40,7 +40,7 @@ class ThirdLevel
     #[ODM\ReferenceOne(targetDocument: FourthLevel::class, cascade: ['persist'])]
     public $badFourthLevel;
     #[ODM\ReferenceMany(mappedBy: 'thirdLevel', targetDocument: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     public function __construct()
     {
diff --git a/src/Doctrine/Orm/Tests/Fixtures/Entity/CompositeItem.php b/src/Doctrine/Orm/Tests/Fixtures/Entity/CompositeItem.php
index bbcea4fbbae..4390826fd1e 100644
--- a/src/Doctrine/Orm/Tests/Fixtures/Entity/CompositeItem.php
+++ b/src/Doctrine/Orm/Tests/Fixtures/Entity/CompositeItem.php
@@ -35,7 +35,7 @@ class CompositeItem implements \Stringable
     private ?string $field1 = null;
     #[ORM\OneToMany(targetEntity: CompositeRelation::class, mappedBy: 'compositeItem', fetch: 'EAGER')]
     #[Groups(['default'])]
-    private Collection|iterable $compositeValues;
+    private Collection $compositeValues;
 
     public function __construct()
     {
@@ -71,7 +71,7 @@ public function setField1($field1 = null): void
     /**
      * Gets compositeValues.
      */
-    public function getCompositeValues(): Collection|iterable
+    public function getCompositeValues(): Collection
     {
         return $this->compositeValues;
     }
diff --git a/src/Doctrine/Orm/Tests/Fixtures/Entity/Dummy.php b/src/Doctrine/Orm/Tests/Fixtures/Entity/Dummy.php
index f5a29cc0d03..8b5f1f44930 100644
--- a/src/Doctrine/Orm/Tests/Fixtures/Entity/Dummy.php
+++ b/src/Doctrine/Orm/Tests/Fixtures/Entity/Dummy.php
@@ -107,7 +107,7 @@ class Dummy
     public ?RelatedDummy $relatedDummy = null;
 
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @var array|null serialize data
@@ -305,7 +305,7 @@ public function getDummy()
         return $this->dummy;
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
diff --git a/src/Doctrine/Orm/Tests/Fixtures/Entity/DummyCar.php b/src/Doctrine/Orm/Tests/Fixtures/Entity/DummyCar.php
index ba9fd297690..94dc316a213 100644
--- a/src/Doctrine/Orm/Tests/Fixtures/Entity/DummyCar.php
+++ b/src/Doctrine/Orm/Tests/Fixtures/Entity/DummyCar.php
@@ -41,19 +41,19 @@ class DummyCar
     private DummyCarIdentifier $id;
     #[ApiFilter(SearchFilter::class, properties: ['colors.prop' => 'ipartial', 'colors' => 'exact'])]
     #[ORM\OneToMany(targetEntity: DummyCarColor::class, mappedBy: 'car')]
-    private Collection|iterable $colors;
+    private Collection $colors;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[ORM\OneToMany(targetEntity: DummyCarColor::class, mappedBy: 'car')]
-    private Collection|iterable|null $secondColors = null;
+    private ?Collection $secondColors = null;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[ORM\OneToMany(targetEntity: DummyCarColor::class, mappedBy: 'car')]
-    private Collection|iterable|null $thirdColors = null;
+    private ?Collection $thirdColors = null;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[ORM\ManyToMany(targetEntity: UuidIdentifierDummy::class, indexBy: 'uuid')]
     #[ORM\JoinColumn(name: 'car_id', referencedColumnName: 'id_id')]
     #[ORM\InverseJoinColumn(name: 'uuid_uuid', referencedColumnName: 'uuid')]
     #[ORM\JoinTable(name: 'uuid_cars')]
-    private Collection|iterable|null $uuid = null;
+    private ?Collection $uuid = null;
 
     #[ApiFilter(SearchFilter::class, strategy: 'partial')]
     #[ORM\Column(type: 'string')]
@@ -80,12 +80,12 @@ public function getId(): DummyCarIdentifier
         return $this->id;
     }
 
-    public function getColors(): Collection|iterable
+    public function getColors(): Collection
     {
         return $this->colors;
     }
 
-    public function setColors(Collection|iterable $colors): self
+    public function setColors(Collection $colors): self
     {
         $this->colors = $colors;
 
diff --git a/src/Doctrine/Orm/Tests/Fixtures/Entity/FourthLevel.php b/src/Doctrine/Orm/Tests/Fixtures/Entity/FourthLevel.php
index 0e193cdc354..e03aada3144 100644
--- a/src/Doctrine/Orm/Tests/Fixtures/Entity/FourthLevel.php
+++ b/src/Doctrine/Orm/Tests/Fixtures/Entity/FourthLevel.php
@@ -46,7 +46,7 @@ class FourthLevel
     #[Groups(['barcelona', 'chicago'])]
     private int $level = 4;
     #[ORM\OneToMany(targetEntity: ThirdLevel::class, cascade: ['persist'], mappedBy: 'badFourthLevel')]
-    public Collection|iterable|null $badThirdLevel = null;
+    public ?Collection $badThirdLevel = null;
 
     public function getId(): ?int
     {
diff --git a/src/Doctrine/Orm/Tests/Fixtures/Entity/RelatedDummy.php b/src/Doctrine/Orm/Tests/Fixtures/Entity/RelatedDummy.php
index 4cf6f92c78d..ac031367347 100644
--- a/src/Doctrine/Orm/Tests/Fixtures/Entity/RelatedDummy.php
+++ b/src/Doctrine/Orm/Tests/Fixtures/Entity/RelatedDummy.php
@@ -92,7 +92,7 @@ class RelatedDummy extends ParentDummy implements \Stringable
 
     #[ORM\OneToMany(targetEntity: RelatedToDummyFriend::class, cascade: ['persist'], mappedBy: 'relatedDummy')]
     #[Groups(['fakemanytomany', 'friends'])]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
 
     #[ORM\Column(enumType: DummyBackedEnum::class, nullable: true)]
     public DummyBackedEnum $dummyBackedEnum;
@@ -180,7 +180,7 @@ public function setThirdLevel(?ThirdLevel $thirdLevel = null): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/src/Doctrine/Orm/Tests/Fixtures/Entity/ThirdLevel.php b/src/Doctrine/Orm/Tests/Fixtures/Entity/ThirdLevel.php
index e3105c71a45..a18f74ce01b 100644
--- a/src/Doctrine/Orm/Tests/Fixtures/Entity/ThirdLevel.php
+++ b/src/Doctrine/Orm/Tests/Fixtures/Entity/ThirdLevel.php
@@ -54,7 +54,7 @@ class ThirdLevel
     public $badFourthLevel;
 
     #[ORM\OneToMany(mappedBy: 'thirdLevel', targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     public function __construct()
     {
diff --git a/src/OpenApi/Tests/Fixtures/Dummy.php b/src/OpenApi/Tests/Fixtures/Dummy.php
index f6d73d7556d..a1c40b4dcba 100644
--- a/src/OpenApi/Tests/Fixtures/Dummy.php
+++ b/src/OpenApi/Tests/Fixtures/Dummy.php
@@ -15,6 +15,8 @@
 
 use ApiPlatform\Metadata\ApiProperty;
 use ApiPlatform\Metadata\ApiResource;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 
 /**
  * Dummy.
@@ -81,7 +83,7 @@ class Dummy
     #[ApiProperty(push: true)]
     public ?RelatedDummy $relatedDummy = null;
 
-    public iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @var array|null serialize data
@@ -104,7 +106,7 @@ public static function staticMethod(): void
 
     public function __construct()
     {
-        $this->relatedDummies = [];
+        $this->relatedDummies = new ArrayCollection();
     }
 
     public function getId()
diff --git a/src/Serializer/Tests/Fixtures/ApiResource/Dummy.php b/src/Serializer/Tests/Fixtures/ApiResource/Dummy.php
index a85f785d10f..05a9b97b2eb 100644
--- a/src/Serializer/Tests/Fixtures/ApiResource/Dummy.php
+++ b/src/Serializer/Tests/Fixtures/ApiResource/Dummy.php
@@ -83,7 +83,7 @@ class Dummy
     #[ApiProperty(push: true)]
     public ?RelatedDummy $relatedDummy = null;
 
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @phpstan-ignore-next-line
@@ -251,7 +251,7 @@ public function getDummy()
         return $this->dummy;
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
diff --git a/src/Serializer/Tests/Fixtures/ApiResource/DummyProperty.php b/src/Serializer/Tests/Fixtures/ApiResource/DummyProperty.php
index 039377c021b..1af4f07baca 100644
--- a/src/Serializer/Tests/Fixtures/ApiResource/DummyProperty.php
+++ b/src/Serializer/Tests/Fixtures/ApiResource/DummyProperty.php
@@ -51,7 +51,7 @@ class DummyProperty
     #[Groups(['dummy_read', 'dummy_graphql_read', 'dummy_write'])]
     public $group;
     #[Groups(['dummy_read', 'dummy_graphql_read', 'dummy_write'])]
-    public Collection|iterable|null $groups = null;
+    public ?Collection $groups = null;
     /**
      * @var string|null
      */
diff --git a/src/Serializer/Tests/Fixtures/ApiResource/DummyTableInheritanceRelated.php b/src/Serializer/Tests/Fixtures/ApiResource/DummyTableInheritanceRelated.php
index ae5e4176f03..6fc61c4a8b0 100644
--- a/src/Serializer/Tests/Fixtures/ApiResource/DummyTableInheritanceRelated.php
+++ b/src/Serializer/Tests/Fixtures/ApiResource/DummyTableInheritanceRelated.php
@@ -30,7 +30,7 @@ class DummyTableInheritanceRelated
      * @var Collection<int, DummyTableInheritance> Related children
      */
     #[Groups(['default'])]
-    private Collection|iterable $children;
+    private Collection $children;
 
     public function __construct()
     {
@@ -42,12 +42,12 @@ public function getId(): ?int
         return $this->id;
     }
 
-    public function getChildren(): Collection|iterable
+    public function getChildren(): Collection
     {
         return $this->children;
     }
 
-    public function setChildren(Collection|iterable $children)
+    public function setChildren(Collection $children)
     {
         $this->children = $children;
 
diff --git a/src/Serializer/Tests/Fixtures/ApiResource/SecuredDummy.php b/src/Serializer/Tests/Fixtures/ApiResource/SecuredDummy.php
index 1b02f8a721f..b2b0c27fabf 100644
--- a/src/Serializer/Tests/Fixtures/ApiResource/SecuredDummy.php
+++ b/src/Serializer/Tests/Fixtures/ApiResource/SecuredDummy.php
@@ -22,6 +22,7 @@
 use ApiPlatform\Metadata\GraphQl\QueryCollection;
 use ApiPlatform\Metadata\Post;
 use ApiPlatform\Metadata\Put;
+use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Symfony\Component\Validator\Constraints as Assert;
 
@@ -83,7 +84,7 @@ class SecuredDummy
      * A collection of dummies that only admins can access.
      */
     #[ApiProperty(security: "is_granted('ROLE_ADMIN')")]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * A dummy that only admins can access.
@@ -97,7 +98,7 @@ class SecuredDummy
      * A collection of dummies that only users can access. The security on RelatedSecuredDummy shouldn't be run.
      */
     #[ApiProperty(security: "is_granted('ROLE_USER')")]
-    public Collection|iterable $relatedSecuredDummies;
+    public Collection $relatedSecuredDummies;
 
     /**
      * A dummy that only users can access. The security on RelatedSecuredDummy shouldn't be run.
@@ -108,7 +109,7 @@ class SecuredDummy
     /**
      * Collection of dummies that anyone can access. There is no ApiProperty security, and the security on RelatedSecuredDummy shouldn't be run.
      */
-    public iterable $publicRelatedSecuredDummies;
+    public Collection $publicRelatedSecuredDummies;
 
     /**
      * A dummy that anyone can access. There is no ApiProperty security, and the security on RelatedSecuredDummy shouldn't be run.
@@ -117,9 +118,9 @@ class SecuredDummy
 
     public function __construct()
     {
-        $this->relatedDummies = [];
-        $this->relatedSecuredDummies = [];
-        $this->publicRelatedSecuredDummies = [];
+        $this->relatedDummies = new ArrayCollection();
+        $this->relatedSecuredDummies = new ArrayCollection();
+        $this->publicRelatedSecuredDummies = new ArrayCollection();
     }
 
     public function getId(): ?int
diff --git a/tests/Fixtures/TestBundle/Document/AbsoluteUrlRelationDummy.php b/tests/Fixtures/TestBundle/Document/AbsoluteUrlRelationDummy.php
index 1ca67b870ab..e93b9f3a4d7 100644
--- a/tests/Fixtures/TestBundle/Document/AbsoluteUrlRelationDummy.php
+++ b/tests/Fixtures/TestBundle/Document/AbsoluteUrlRelationDummy.php
@@ -26,7 +26,7 @@ class AbsoluteUrlRelationDummy
     #[ODM\Id(strategy: 'INCREMENT', type: 'int')]
     private $id;
     #[ODM\ReferenceMany(targetDocument: AbsoluteUrlDummy::class, mappedBy: 'absoluteUrlRelationDummy')]
-    public Collection|iterable $absoluteUrlDummies;
+    public Collection $absoluteUrlDummies;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/Answer.php b/tests/Fixtures/TestBundle/Document/Answer.php
index 28d91bc7e71..6eb0af53bff 100644
--- a/tests/Fixtures/TestBundle/Document/Answer.php
+++ b/tests/Fixtures/TestBundle/Document/Answer.php
@@ -45,7 +45,7 @@ class Answer
     private ?Question $question = null;
     #[Serializer\Groups(['foobar'])]
     #[ODM\ReferenceMany(targetDocument: Question::class, mappedBy: 'answer')]
-    private Collection|iterable $relatedQuestions;
+    private Collection $relatedQuestions;
 
     public function __construct()
     {
@@ -99,7 +99,7 @@ public function getQuestion(): ?Question
     /**
      * Get related question.
      */
-    public function getRelatedQuestions(): Collection|iterable
+    public function getRelatedQuestions(): Collection
     {
         return $this->relatedQuestions;
     }
diff --git a/tests/Fixtures/TestBundle/Document/CircularReference.php b/tests/Fixtures/TestBundle/Document/CircularReference.php
index a40f65d2e71..e602a5be3e5 100644
--- a/tests/Fixtures/TestBundle/Document/CircularReference.php
+++ b/tests/Fixtures/TestBundle/Document/CircularReference.php
@@ -35,7 +35,7 @@ class CircularReference
     public $parent;
     #[Groups(['circular'])]
     #[ODM\ReferenceMany(targetDocument: self::class, mappedBy: 'parent')]
-    public Collection|iterable $children;
+    public Collection $children;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/CompositeItem.php b/tests/Fixtures/TestBundle/Document/CompositeItem.php
index cfe73fb374c..847d9fee409 100644
--- a/tests/Fixtures/TestBundle/Document/CompositeItem.php
+++ b/tests/Fixtures/TestBundle/Document/CompositeItem.php
@@ -33,7 +33,7 @@ class CompositeItem implements \Stringable
     private ?string $field1 = null;
     #[Groups(['default'])]
     #[ODM\ReferenceMany(targetDocument: CompositeRelation::class, mappedBy: 'compositeItem')]
-    private Collection|iterable $compositeValues;
+    private Collection $compositeValues;
 
     public function __construct()
     {
@@ -67,7 +67,7 @@ public function setField1(?string $field1 = null): void
     /**
      * Gets compositeValues.
      */
-    public function getCompositeValues(): Collection|iterable
+    public function getCompositeValues(): Collection
     {
         return $this->compositeValues;
     }
diff --git a/tests/Fixtures/TestBundle/Document/Content.php b/tests/Fixtures/TestBundle/Document/Content.php
index 7a8d1b242ef..719ec71de78 100644
--- a/tests/Fixtures/TestBundle/Document/Content.php
+++ b/tests/Fixtures/TestBundle/Document/Content.php
@@ -32,7 +32,7 @@ class Content implements \JsonSerializable
      * @var Collection<Field>
      */
     #[ODM\ReferenceMany(targetDocument: Field::class, mappedBy: 'content', strategy: 'set', cascade: ['persist'])]
-    private Collection|iterable $fields;
+    private Collection $fields;
     #[ODM\Field(type: 'string')]
     private string $status = ContentStatus::DRAFT;
 
diff --git a/tests/Fixtures/TestBundle/Document/Customer.php b/tests/Fixtures/TestBundle/Document/Customer.php
index 9aac6f4f6d4..e0af9bed2c2 100644
--- a/tests/Fixtures/TestBundle/Document/Customer.php
+++ b/tests/Fixtures/TestBundle/Document/Customer.php
@@ -31,7 +31,7 @@ class Customer
     public $name;
     #[Groups(['order_read'])]
     #[ODM\ReferenceMany(targetDocument: Address::class)]
-    public Collection|iterable $addresses;
+    public Collection $addresses;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/Dummy.php b/tests/Fixtures/TestBundle/Document/Dummy.php
index c47a817705f..e64bd5fccbb 100644
--- a/tests/Fixtures/TestBundle/Document/Dummy.php
+++ b/tests/Fixtures/TestBundle/Document/Dummy.php
@@ -97,7 +97,7 @@ class Dummy
     #[ODM\ReferenceOne(targetDocument: RelatedDummy::class, storeAs: 'id', nullable: true)]
     public ?RelatedDummy $relatedDummy = null;
     #[ODM\ReferenceMany(targetDocument: RelatedDummy::class, storeAs: 'id', nullable: true)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
     #[ODM\Field(type: 'hash', nullable: true)]
     public array $jsonData = [];
     #[ODM\Field(type: 'collection', nullable: true)]
diff --git a/tests/Fixtures/TestBundle/Document/DummyAggregateOffer.php b/tests/Fixtures/TestBundle/Document/DummyAggregateOffer.php
index 8ccf3657399..021af84743d 100644
--- a/tests/Fixtures/TestBundle/Document/DummyAggregateOffer.php
+++ b/tests/Fixtures/TestBundle/Document/DummyAggregateOffer.php
@@ -39,7 +39,7 @@ class DummyAggregateOffer
     #[ODM\Id(strategy: 'INCREMENT', type: 'int')]
     private ?int $id = null;
     #[ODM\ReferenceMany(targetDocument: DummyOffer::class, mappedBy: 'aggregate', cascade: ['persist'])]
-    private Collection|iterable $offers;
+    private Collection $offers;
     /**
      * @var DummyProduct The dummy product
      */
@@ -56,12 +56,12 @@ public function __construct()
         $this->offers = new ArrayCollection();
     }
 
-    public function getOffers(): Collection|iterable
+    public function getOffers(): Collection
     {
         return $this->offers;
     }
 
-    public function setOffers(Collection|iterable $offers): void
+    public function setOffers(Collection $offers): void
     {
         $this->offers = $offers;
     }
diff --git a/tests/Fixtures/TestBundle/Document/DummyCar.php b/tests/Fixtures/TestBundle/Document/DummyCar.php
index db3fe080125..abaa26c072e 100644
--- a/tests/Fixtures/TestBundle/Document/DummyCar.php
+++ b/tests/Fixtures/TestBundle/Document/DummyCar.php
@@ -45,19 +45,19 @@ class DummyCar
     #[ApiFilter(SearchFilter::class, properties: ['colors.prop' => 'ipartial', 'colors' => 'exact'])]
     #[Serializer\Groups(['colors'])]
     #[ODM\ReferenceMany(targetDocument: DummyCarColor::class, mappedBy: 'car')]
-    private Collection|iterable $colors;
+    private Collection $colors;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[Serializer\Groups(['colors'])]
     #[ODM\ReferenceMany(targetDocument: DummyCarColor::class, mappedBy: 'car')]
-    private Collection|iterable $secondColors;
+    private Collection $secondColors;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[Serializer\Groups(['colors'])]
     #[ODM\ReferenceMany(targetDocument: DummyCarColor::class, mappedBy: 'car')]
-    private Collection|iterable $thirdColors;
+    private Collection $thirdColors;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[Serializer\Groups(['colors'])]
     #[ODM\ReferenceMany(targetDocument: UuidIdentifierDummy::class)]
-    private Collection|iterable $uuid;
+    private Collection $uuid;
     #[ApiFilter(SearchFilter::class, strategy: 'partial')]
     #[ODM\Field(type: 'string')]
     private ?string $name = null;
@@ -84,44 +84,44 @@ public function getId(): ?int
         return $this->id;
     }
 
-    public function getColors(): Collection|iterable
+    public function getColors(): Collection
     {
         return $this->colors;
     }
 
-    public function setColors(Collection|iterable $colors): self
+    public function setColors(Collection $colors): self
     {
         $this->colors = $colors;
 
         return $this;
     }
 
-    public function getSecondColors(): Collection|iterable
+    public function getSecondColors(): Collection
     {
         return $this->secondColors;
     }
 
-    public function setSecondColors(Collection|iterable $secondColors): void
+    public function setSecondColors(Collection $secondColors): void
     {
         $this->secondColors = $secondColors;
     }
 
-    public function getThirdColors(): Collection|iterable
+    public function getThirdColors(): Collection
     {
         return $this->thirdColors;
     }
 
-    public function setThirdColors(Collection|iterable $thirdColors): void
+    public function setThirdColors(Collection $thirdColors): void
     {
         $this->thirdColors = $thirdColors;
     }
 
-    public function getUuid(): Collection|iterable
+    public function getUuid(): Collection
     {
         return $this->uuid;
     }
 
-    public function setUuid(Collection|iterable $uuid): void
+    public function setUuid(Collection $uuid): void
     {
         $this->uuid = $uuid;
     }
diff --git a/tests/Fixtures/TestBundle/Document/DummyDtoInputOutput.php b/tests/Fixtures/TestBundle/Document/DummyDtoInputOutput.php
index 1696ab9c618..7718269f860 100644
--- a/tests/Fixtures/TestBundle/Document/DummyDtoInputOutput.php
+++ b/tests/Fixtures/TestBundle/Document/DummyDtoInputOutput.php
@@ -51,5 +51,5 @@ public function __construct()
     #[ODM\Field(type: 'float')]
     public $num;
     #[ODM\ReferenceMany(targetDocument: RelatedDummy::class, storeAs: 'id', nullable: true)]
-    public Collection|iterable|null $relatedDummies = null;
+    public ?Collection $relatedDummies = null;
 }
diff --git a/tests/Fixtures/TestBundle/Document/DummyProduct.php b/tests/Fixtures/TestBundle/Document/DummyProduct.php
index cdd001ca68f..a1d4a60f20a 100644
--- a/tests/Fixtures/TestBundle/Document/DummyProduct.php
+++ b/tests/Fixtures/TestBundle/Document/DummyProduct.php
@@ -38,14 +38,14 @@ class DummyProduct
     #[ODM\Id(strategy: 'None', type: 'int')]
     private ?int $id = null;
     #[ODM\ReferenceMany(targetDocument: DummyAggregateOffer::class, mappedBy: 'product', cascade: ['persist'])]
-    private Collection|iterable $offers;
+    private Collection $offers;
     /**
      * @var string The tour name
      */
     #[ODM\Field]
     private string $name;
     #[ODM\ReferenceMany(targetDocument: self::class, mappedBy: 'parent')]
-    private Collection|iterable $relatedProducts;
+    private Collection $relatedProducts;
     #[ODM\ReferenceOne(targetDocument: self::class, inversedBy: 'relatedProducts')]
     private $parent;
 
@@ -55,12 +55,12 @@ public function __construct()
         $this->relatedProducts = new ArrayCollection();
     }
 
-    public function getOffers(): Collection|iterable
+    public function getOffers(): Collection
     {
         return $this->offers;
     }
 
-    public function setOffers(Collection|iterable $offers): void
+    public function setOffers(Collection $offers): void
     {
         $this->offers = $offers;
     }
@@ -91,12 +91,12 @@ public function setName(string $name): void
         $this->name = $name;
     }
 
-    public function getRelatedProducts(): Collection|iterable
+    public function getRelatedProducts(): Collection
     {
         return $this->relatedProducts;
     }
 
-    public function setRelatedProducts(Collection|iterable $relatedProducts): void
+    public function setRelatedProducts(Collection $relatedProducts): void
     {
         $this->relatedProducts = $relatedProducts;
     }
diff --git a/tests/Fixtures/TestBundle/Document/DummyProperty.php b/tests/Fixtures/TestBundle/Document/DummyProperty.php
index c61c2c01902..3af3f2f12ac 100644
--- a/tests/Fixtures/TestBundle/Document/DummyProperty.php
+++ b/tests/Fixtures/TestBundle/Document/DummyProperty.php
@@ -58,11 +58,11 @@ class DummyProperty
     #[ODM\ReferenceOne(targetDocument: DummyGroup::class, cascade: ['persist'], nullable: true)]
     public $group;
     /**
-     * @var DummyGroup[]|null
+     * @var Collection<DummyGroup>|null
      */
     #[Groups(['dummy_read', 'dummy_graphql_read', 'dummy_write'])]
     #[ODM\ReferenceMany(targetDocument: DummyGroup::class, cascade: ['persist'])]
-    public Collection|iterable|null $groups = null;
+    public ?Collection $groups = null;
     /**
      * @var string|null
      */
diff --git a/tests/Fixtures/TestBundle/Document/DummyTableInheritanceRelated.php b/tests/Fixtures/TestBundle/Document/DummyTableInheritanceRelated.php
index bc8c735310b..ddca06033a4 100644
--- a/tests/Fixtures/TestBundle/Document/DummyTableInheritanceRelated.php
+++ b/tests/Fixtures/TestBundle/Document/DummyTableInheritanceRelated.php
@@ -34,7 +34,7 @@ class DummyTableInheritanceRelated
      */
     #[Groups(['default'])]
     #[ODM\ReferenceMany(targetDocument: DummyTableInheritance::class, mappedBy: 'parent')]
-    private Collection|iterable $children;
+    private Collection $children;
 
     public function __construct()
     {
@@ -46,12 +46,12 @@ public function getId(): ?int
         return $this->id;
     }
 
-    public function getChildren(): Collection|iterable
+    public function getChildren(): Collection
     {
         return $this->children;
     }
 
-    public function setChildren(Collection|iterable $children)
+    public function setChildren(Collection $children)
     {
         $this->children = $children;
 
diff --git a/tests/Fixtures/TestBundle/Document/DummyWithEmbedManyOmittingTargetDocument.php b/tests/Fixtures/TestBundle/Document/DummyWithEmbedManyOmittingTargetDocument.php
index fd32c7ff2b6..5955041123f 100644
--- a/tests/Fixtures/TestBundle/Document/DummyWithEmbedManyOmittingTargetDocument.php
+++ b/tests/Fixtures/TestBundle/Document/DummyWithEmbedManyOmittingTargetDocument.php
@@ -44,7 +44,7 @@ public function getId(): ?int
         return $this->id;
     }
 
-    public function getEmbeddedDummies(): Collection|iterable
+    public function getEmbeddedDummies(): Collection
     {
         return $this->embeddedDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Document/FourthLevel.php b/tests/Fixtures/TestBundle/Document/FourthLevel.php
index bf653bfbc37..616df33c80f 100644
--- a/tests/Fixtures/TestBundle/Document/FourthLevel.php
+++ b/tests/Fixtures/TestBundle/Document/FourthLevel.php
@@ -44,7 +44,7 @@ class FourthLevel
     #[ODM\Field(type: 'int')]
     private ?int $level = 4;
     #[ODM\ReferenceMany(targetDocument: ThirdLevel::class, cascade: ['persist'], mappedBy: 'badFourthLevel', storeAs: 'id')]
-    public Collection|iterable|null $badThirdLevel = null;
+    public ?Collection $badThirdLevel = null;
 
     public function getId(): ?int
     {
diff --git a/tests/Fixtures/TestBundle/Document/NetworkPathRelationDummy.php b/tests/Fixtures/TestBundle/Document/NetworkPathRelationDummy.php
index 641ccd8dfa6..ace5f733594 100644
--- a/tests/Fixtures/TestBundle/Document/NetworkPathRelationDummy.php
+++ b/tests/Fixtures/TestBundle/Document/NetworkPathRelationDummy.php
@@ -26,7 +26,7 @@ class NetworkPathRelationDummy
     #[ODM\Id(strategy: 'INCREMENT', type: 'int')]
     private $id;
     #[ODM\ReferenceMany(targetDocument: NetworkPathDummy::class, mappedBy: 'networkPathRelationDummy')]
-    public Collection|iterable $networkPathDummies;
+    public Collection $networkPathDummies;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/OptionalRequiredDummy.php b/tests/Fixtures/TestBundle/Document/OptionalRequiredDummy.php
index 878bcdbb870..dac6a7b95bb 100644
--- a/tests/Fixtures/TestBundle/Document/OptionalRequiredDummy.php
+++ b/tests/Fixtures/TestBundle/Document/OptionalRequiredDummy.php
@@ -50,7 +50,7 @@ class OptionalRequiredDummy
 
     #[ODM\ReferenceMany(targetDocument: RelatedToDummyFriend::class, mappedBy: 'relatedDummy')]
     #[Groups(['fakemanytomany', 'friends'])]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
 
     public function __construct()
     {
@@ -90,7 +90,7 @@ public function setThirdLevelRequired(ThirdLevel $thirdLevelRequired): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/tests/Fixtures/TestBundle/Document/Person.php b/tests/Fixtures/TestBundle/Document/Person.php
index 14a243c4a39..c31b3def16e 100644
--- a/tests/Fixtures/TestBundle/Document/Person.php
+++ b/tests/Fixtures/TestBundle/Document/Person.php
@@ -48,10 +48,10 @@ class Person
 
     #[Groups(['people.pets'])]
     #[ODM\ReferenceMany(targetDocument: PersonToPet::class, mappedBy: 'person')]
-    public Collection|iterable $pets;
+    public Collection $pets;
 
     #[ODM\ReferenceMany(targetDocument: Greeting::class, mappedBy: 'sender')]
-    public Collection|iterable|null $sentGreetings = null;
+    public ?Collection $sentGreetings = null;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/Pet.php b/tests/Fixtures/TestBundle/Document/Pet.php
index 653aab39553..77600b32d71 100644
--- a/tests/Fixtures/TestBundle/Document/Pet.php
+++ b/tests/Fixtures/TestBundle/Document/Pet.php
@@ -34,7 +34,7 @@ class Pet
     #[ODM\Field(type: 'string')]
     public $name;
     #[ODM\ReferenceMany(targetDocument: PersonToPet::class, mappedBy: 'pet')]
-    public Collection|iterable $people;
+    public Collection $people;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/RelatedDummy.php b/tests/Fixtures/TestBundle/Document/RelatedDummy.php
index 6a3678b6484..0de06769aba 100644
--- a/tests/Fixtures/TestBundle/Document/RelatedDummy.php
+++ b/tests/Fixtures/TestBundle/Document/RelatedDummy.php
@@ -76,7 +76,7 @@ class RelatedDummy extends ParentDummy implements \Stringable
     public ?ThirdLevel $thirdLevel = null;
     #[Groups(['fakemanytomany', 'friends'])]
     #[ODM\ReferenceMany(targetDocument: RelatedToDummyFriend::class, cascade: ['persist'], mappedBy: 'relatedDummy', storeAs: 'id')]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
     #[Groups(['friends'])]
     #[ODM\Field(type: 'bool')]
     public ?bool $dummyBoolean = null;
@@ -156,7 +156,7 @@ public function setThirdLevel(?ThirdLevel $thirdLevel = null): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/tests/Fixtures/TestBundle/Document/RelatedNormalizedDummy.php b/tests/Fixtures/TestBundle/Document/RelatedNormalizedDummy.php
index fa434c0a655..d7659842553 100644
--- a/tests/Fixtures/TestBundle/Document/RelatedNormalizedDummy.php
+++ b/tests/Fixtures/TestBundle/Document/RelatedNormalizedDummy.php
@@ -47,7 +47,7 @@ class RelatedNormalizedDummy
 
     #[Groups(['related_output', 'related_input'])]
     #[ODM\ReferenceMany(targetDocument: CustomNormalizedDummy::class)]
-    public Collection|iterable $customNormalizedDummy;
+    public Collection $customNormalizedDummy;
 
     public function __construct()
     {
@@ -72,12 +72,12 @@ public function getName(): ?string
         return $this->name;
     }
 
-    public function getCustomNormalizedDummy(): Collection|iterable
+    public function getCustomNormalizedDummy(): Collection
     {
         return $this->customNormalizedDummy;
     }
 
-    public function setCustomNormalizedDummy(Collection|iterable $customNormalizedDummy): void
+    public function setCustomNormalizedDummy(Collection $customNormalizedDummy): void
     {
         $this->customNormalizedDummy = $customNormalizedDummy;
     }
diff --git a/tests/Fixtures/TestBundle/Document/SecuredDummy.php b/tests/Fixtures/TestBundle/Document/SecuredDummy.php
index daab913c07e..888ef24ded4 100644
--- a/tests/Fixtures/TestBundle/Document/SecuredDummy.php
+++ b/tests/Fixtures/TestBundle/Document/SecuredDummy.php
@@ -92,7 +92,7 @@ class SecuredDummy
 
     #[ApiProperty(security: "is_granted('ROLE_ADMIN')")]
     #[ODM\ReferenceMany(targetDocument: RelatedDummy::class, storeAs: 'id', nullable: true)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @var RelatedDummy
@@ -106,7 +106,7 @@ class SecuredDummy
      */
     #[ApiProperty(security: "is_granted('ROLE_USER')")]
     #[ODM\ReferenceMany(targetDocument: RelatedSecuredDummy::class, storeAs: 'id', nullable: true)]
-    public Collection|iterable $relatedSecuredDummies;
+    public Collection $relatedSecuredDummies;
 
     /**
      * A dummy that only users can access. The security on RelatedSecuredDummy shouldn't be run.
@@ -120,7 +120,7 @@ class SecuredDummy
      * Collection of dummies that anyone can access. There is no ApiProperty security, and the security on RelatedSecuredDummy shouldn't be run.
      */
     #[ODM\ReferenceMany(targetDocument: RelatedSecuredDummy::class, storeAs: 'id', nullable: true)]
-    public Collection|iterable $publicRelatedSecuredDummies;
+    public Collection $publicRelatedSecuredDummies;
     /**
      * A dummy that anyone can access. There is no ApiProperty security, and the security on RelatedSecuredDummy shouldn't be run.
      *
@@ -206,7 +206,7 @@ public function addRelatedDummy(RelatedDummy $relatedDummy): void
         $this->relatedDummies->add($relatedDummy);
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
@@ -226,7 +226,7 @@ public function addRelatedSecuredDummy(RelatedSecuredDummy $relatedSecuredDummy)
         $this->relatedSecuredDummies->add($relatedSecuredDummy);
     }
 
-    public function getRelatedSecuredDummies(): Collection|iterable
+    public function getRelatedSecuredDummies(): Collection
     {
         return $this->relatedSecuredDummies;
     }
@@ -246,7 +246,7 @@ public function addPublicRelatedSecuredDummy(RelatedSecuredDummy $publicRelatedS
         $this->publicRelatedSecuredDummies->add($publicRelatedSecuredDummy);
     }
 
-    public function getPublicRelatedSecuredDummies(): Collection|iterable
+    public function getPublicRelatedSecuredDummies(): Collection
     {
         return $this->publicRelatedSecuredDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Document/SlugParentDummy.php b/tests/Fixtures/TestBundle/Document/SlugParentDummy.php
index ed34ea94bd6..c6011cdba0c 100644
--- a/tests/Fixtures/TestBundle/Document/SlugParentDummy.php
+++ b/tests/Fixtures/TestBundle/Document/SlugParentDummy.php
@@ -48,7 +48,7 @@ class SlugParentDummy
      * @var Collection<int,SlugChildDummy>
      */
     #[ODM\ReferenceMany(targetDocument: SlugChildDummy::class, mappedBy: 'parentDummy')]
-    private Collection|iterable $childDummies;
+    private Collection $childDummies;
 
     public function __construct()
     {
@@ -73,7 +73,7 @@ public function setSlug(string $slug): void
     /**
      * @return Collection<int, SlugChildDummy>
      */
-    public function getChildDummies(): Collection|iterable
+    public function getChildDummies(): Collection
     {
         return $this->childDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Document/ThirdLevel.php b/tests/Fixtures/TestBundle/Document/ThirdLevel.php
index ef482a6564a..9a970c345f3 100644
--- a/tests/Fixtures/TestBundle/Document/ThirdLevel.php
+++ b/tests/Fixtures/TestBundle/Document/ThirdLevel.php
@@ -52,7 +52,7 @@ class ThirdLevel
     #[ODM\ReferenceOne(targetDocument: FourthLevel::class, cascade: ['persist'])]
     public $badFourthLevel;
     #[ODM\ReferenceMany(mappedBy: 'thirdLevel', targetDocument: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Document/VoDummyCar.php b/tests/Fixtures/TestBundle/Document/VoDummyCar.php
index 28609813c15..59e0e7462e5 100644
--- a/tests/Fixtures/TestBundle/Document/VoDummyCar.php
+++ b/tests/Fixtures/TestBundle/Document/VoDummyCar.php
@@ -25,7 +25,7 @@ class VoDummyCar extends VoDummyVehicle
 {
     #[Groups(['car_read', 'car_write'])]
     #[ODM\ReferenceMany(targetDocument: VoDummyInspection::class, mappedBy: 'car', cascade: ['persist'])]
-    private Collection|iterable $inspections;
+    private Collection $inspections;
 
     public function __construct(string $make, VoDummyInsuranceCompany $insuranceCompany, array $drivers, #[Groups(['car_read', 'car_write'])] #[ODM\Field(type: 'int')] private int $mileage, #[Groups(['car_read', 'car_write'])] #[ODM\Field] private string $bodyType = 'coupe')
     {
@@ -43,7 +43,7 @@ public function getBodyType(): string
         return $this->bodyType;
     }
 
-    public function getInspections(): Collection|iterable
+    public function getInspections(): Collection
     {
         return $this->inspections;
     }
diff --git a/tests/Fixtures/TestBundle/Document/VoDummyVehicle.php b/tests/Fixtures/TestBundle/Document/VoDummyVehicle.php
index cd84cf99916..b276d463e28 100644
--- a/tests/Fixtures/TestBundle/Document/VoDummyVehicle.php
+++ b/tests/Fixtures/TestBundle/Document/VoDummyVehicle.php
@@ -27,7 +27,7 @@ abstract class VoDummyVehicle
      */
     #[Groups(['car_read', 'car_write'])]
     #[ODM\ReferenceMany(targetDocument: VoDummyDriver::class, cascade: ['persist'])]
-    private Collection|iterable $drivers;
+    private Collection $drivers;
 
     public function __construct(
         #[Groups(['car_read', 'car_write'])] #[ODM\Field] private string $make,
@@ -50,7 +50,7 @@ public function getInsuranceCompany(): VoDummyInsuranceCompany
     /**
      * @return Collection<VoDummyDriver>
      */
-    public function getDrivers(): Collection|iterable
+    public function getDrivers(): Collection
     {
         return $this->drivers;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/AbsoluteUrlRelationDummy.php b/tests/Fixtures/TestBundle/Entity/AbsoluteUrlRelationDummy.php
index 8be39e7c89c..eb30c0e7208 100644
--- a/tests/Fixtures/TestBundle/Entity/AbsoluteUrlRelationDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/AbsoluteUrlRelationDummy.php
@@ -28,7 +28,7 @@ class AbsoluteUrlRelationDummy
     #[ORM\Column(type: 'integer')]
     private $id;
     #[ORM\OneToMany(targetEntity: AbsoluteUrlDummy::class, mappedBy: 'absoluteUrlRelationDummy')]
-    public Collection|iterable $absoluteUrlDummies;
+    public Collection $absoluteUrlDummies;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/Answer.php b/tests/Fixtures/TestBundle/Entity/Answer.php
index ec22268a5be..1542580adbe 100644
--- a/tests/Fixtures/TestBundle/Entity/Answer.php
+++ b/tests/Fixtures/TestBundle/Entity/Answer.php
@@ -50,7 +50,7 @@ class Answer
      */
     #[ORM\OneToMany(targetEntity: Question::class, mappedBy: 'answer')]
     #[Serializer\Groups(['foobar'])]
-    private Collection|iterable $relatedQuestions;
+    private Collection $relatedQuestions;
 
     public function __construct()
     {
@@ -106,7 +106,7 @@ public function getQuestion(): ?Question
     /**
      * Get related question.
      */
-    public function getRelatedQuestions(): Collection|iterable
+    public function getRelatedQuestions(): Collection
     {
         return $this->relatedQuestions;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/CircularReference.php b/tests/Fixtures/TestBundle/Entity/CircularReference.php
index 1c7bdf06844..d139e47c4d8 100644
--- a/tests/Fixtures/TestBundle/Entity/CircularReference.php
+++ b/tests/Fixtures/TestBundle/Entity/CircularReference.php
@@ -37,7 +37,7 @@ class CircularReference
     public $parent;
     #[ORM\OneToMany(targetEntity: self::class, mappedBy: 'parent')]
     #[Groups(['circular'])]
-    public Collection|iterable $children;
+    public Collection $children;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/CompositeItem.php b/tests/Fixtures/TestBundle/Entity/CompositeItem.php
index e049b5bbf8f..ac2271334d5 100644
--- a/tests/Fixtures/TestBundle/Entity/CompositeItem.php
+++ b/tests/Fixtures/TestBundle/Entity/CompositeItem.php
@@ -35,7 +35,7 @@ class CompositeItem implements \Stringable
     private ?string $field1 = null;
     #[ORM\OneToMany(targetEntity: CompositeRelation::class, mappedBy: 'compositeItem', fetch: 'EAGER')]
     #[Groups(['default'])]
-    private Collection|iterable $compositeValues;
+    private Collection $compositeValues;
 
     public function __construct()
     {
@@ -71,7 +71,7 @@ public function setField1($field1 = null): void
     /**
      * Gets compositeValues.
      */
-    public function getCompositeValues(): Collection|iterable
+    public function getCompositeValues(): Collection
     {
         return $this->compositeValues;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/Content.php b/tests/Fixtures/TestBundle/Entity/Content.php
index 4a447c3748a..f8ba93480d0 100644
--- a/tests/Fixtures/TestBundle/Entity/Content.php
+++ b/tests/Fixtures/TestBundle/Entity/Content.php
@@ -35,7 +35,7 @@ class Content implements \JsonSerializable
      */
     #[ORM\OneToMany(targetEntity: Field::class, mappedBy: 'content', cascade: ['persist'], orphanRemoval: true, indexBy: 'name')]
     #[ORM\OrderBy(['id' => 'ASC'])]
-    private Collection|iterable $fields;
+    private Collection $fields;
     #[ORM\Column(type: 'string')]
     private string $status = ContentStatus::DRAFT;
 
diff --git a/tests/Fixtures/TestBundle/Entity/Customer.php b/tests/Fixtures/TestBundle/Entity/Customer.php
index 1d3f6d42a13..e6d10e330a8 100644
--- a/tests/Fixtures/TestBundle/Entity/Customer.php
+++ b/tests/Fixtures/TestBundle/Entity/Customer.php
@@ -34,7 +34,7 @@ class Customer
     #[ORM\ManyToMany(targetEntity: Address::class)]
     #[ORM\JoinColumn(nullable: false)]
     #[Groups(['order_read'])]
-    public Collection|iterable $addresses;
+    public Collection $addresses;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/Dummy.php b/tests/Fixtures/TestBundle/Entity/Dummy.php
index c3cfde6c23f..cee354b5921 100644
--- a/tests/Fixtures/TestBundle/Entity/Dummy.php
+++ b/tests/Fixtures/TestBundle/Entity/Dummy.php
@@ -114,7 +114,7 @@ class Dummy
     public ?RelatedDummy $relatedDummy = null;
 
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @var array|null serialize data
@@ -318,7 +318,7 @@ public function getDummy()
         return $this->dummy;
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/DummyAggregateOffer.php b/tests/Fixtures/TestBundle/Entity/DummyAggregateOffer.php
index 7089cdf2a70..24e5779871c 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyAggregateOffer.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyAggregateOffer.php
@@ -44,7 +44,7 @@ class DummyAggregateOffer
      * @var Collection<int,DummyOffer>
      */
     #[ORM\OneToMany(targetEntity: DummyOffer::class, mappedBy: 'aggregate', cascade: ['persist'])]
-    private Collection|iterable $offers;
+    private Collection $offers;
     /**
      * @var DummyProduct|null The dummy product
      */
@@ -61,12 +61,12 @@ public function __construct()
         $this->offers = new ArrayCollection();
     }
 
-    public function getOffers(): Collection|iterable
+    public function getOffers(): Collection
     {
         return $this->offers;
     }
 
-    public function setOffers(Collection|iterable $offers): void
+    public function setOffers(Collection $offers): void
     {
         $this->offers = $offers;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/DummyCar.php b/tests/Fixtures/TestBundle/Entity/DummyCar.php
index 3991a1da6a8..0fcab53cf12 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyCar.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyCar.php
@@ -49,22 +49,22 @@ class DummyCar
     #[ApiFilter(SearchFilter::class, properties: ['colors.prop' => 'ipartial', 'colors' => 'exact'])]
     #[ORM\OneToMany(targetEntity: DummyCarColor::class, mappedBy: 'car')]
     #[Serializer\Groups(['colors'])]
-    private Collection|iterable $colors;
+    private Collection $colors;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[ORM\OneToMany(targetEntity: DummyCarColor::class, mappedBy: 'car')]
     #[Serializer\Groups(['colors'])]
-    private Collection|iterable|null $secondColors = null;
+    private ?Collection $secondColors = null;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[ORM\OneToMany(targetEntity: DummyCarColor::class, mappedBy: 'car')]
     #[Serializer\Groups(['colors'])]
-    private Collection|iterable|null $thirdColors = null;
+    private ?Collection $thirdColors = null;
     #[ApiFilter(SearchFilter::class, strategy: 'exact')]
     #[ORM\ManyToMany(targetEntity: UuidIdentifierDummy::class, indexBy: 'uuid')]
     #[ORM\JoinColumn(name: 'car_id', referencedColumnName: 'id_id')]
     #[ORM\InverseJoinColumn(name: 'uuid_uuid', referencedColumnName: 'uuid')]
     #[ORM\JoinTable(name: 'uuid_cars')]
     #[Serializer\Groups(['colors'])]
-    private Collection|iterable|null $uuid = null;
+    private ?Collection $uuid = null;
 
     #[ApiFilter(SearchFilter::class, strategy: 'partial')]
     #[ORM\Column(type: 'string')]
@@ -93,12 +93,12 @@ public function getId(): DummyCarIdentifier
         return $this->id;
     }
 
-    public function getColors(): Collection|iterable
+    public function getColors(): Collection
     {
         return $this->colors;
     }
 
-    public function setColors(Collection|iterable $colors): self
+    public function setColors(Collection $colors): self
     {
         $this->colors = $colors;
 
diff --git a/tests/Fixtures/TestBundle/Entity/DummyDtoInputOutput.php b/tests/Fixtures/TestBundle/Entity/DummyDtoInputOutput.php
index 1efc7bfd669..26acd5b6a18 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyDtoInputOutput.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyDtoInputOutput.php
@@ -53,5 +53,5 @@ public function __construct()
     #[ORM\Column(type: 'float')]
     public $num;
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
-    public Collection|iterable|null $relatedDummies = null;
+    public ?Collection $relatedDummies = null;
 }
diff --git a/tests/Fixtures/TestBundle/Entity/DummyProblem.php b/tests/Fixtures/TestBundle/Entity/DummyProblem.php
index a6bf31b5dc9..1b46b1a97a6 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyProblem.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyProblem.php
@@ -101,7 +101,7 @@ class DummyProblem
     public ?RelatedDummy $relatedDummy = null;
 
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * @var array|null serialize data
@@ -296,7 +296,7 @@ public function getDummy()
         return $this->dummy;
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/DummyProduct.php b/tests/Fixtures/TestBundle/Entity/DummyProduct.php
index d6e428f8a02..d79d60dfff7 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyProduct.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyProduct.php
@@ -42,7 +42,7 @@ class DummyProduct
      * @var Collection<int, DummyAggregateOffer>
      */
     #[ORM\OneToMany(targetEntity: DummyAggregateOffer::class, mappedBy: 'product', cascade: ['persist'])]
-    private Collection|iterable $offers;
+    private Collection $offers;
     /**
      * @var string The tour name
      */
@@ -52,7 +52,7 @@ class DummyProduct
      * @var Collection<int,DummyProduct>
      */
     #[ORM\OneToMany(targetEntity: self::class, mappedBy: 'parent')]
-    private Collection|iterable $relatedProducts;
+    private Collection $relatedProducts;
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'relatedProducts')]
     private $parent;
 
@@ -62,12 +62,12 @@ public function __construct()
         $this->relatedProducts = new ArrayCollection();
     }
 
-    public function getOffers(): Collection|iterable
+    public function getOffers(): Collection
     {
         return $this->offers;
     }
 
-    public function setOffers(Collection|iterable $offers): void
+    public function setOffers(Collection $offers): void
     {
         $this->offers = $offers;
     }
@@ -98,12 +98,12 @@ public function setName(string $name): void
         $this->name = $name;
     }
 
-    public function getRelatedProducts(): Collection|iterable
+    public function getRelatedProducts(): Collection
     {
         return $this->relatedProducts;
     }
 
-    public function setRelatedProducts(Collection|iterable $relatedProducts): void
+    public function setRelatedProducts(Collection $relatedProducts): void
     {
         $this->relatedProducts = $relatedProducts;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/DummyProperty.php b/tests/Fixtures/TestBundle/Entity/DummyProperty.php
index d0d6b84032b..afee7bb90d2 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyProperty.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyProperty.php
@@ -61,7 +61,7 @@ class DummyProperty
     public $group;
     #[ORM\ManyToMany(targetEntity: DummyGroup::class, cascade: ['persist'])]
     #[Groups(['dummy_read', 'dummy_graphql_read', 'dummy_write'])]
-    public Collection|iterable|null $groups = null;
+    public ?Collection $groups = null;
     /**
      * @var string|null
      */
diff --git a/tests/Fixtures/TestBundle/Entity/DummyTableInheritanceRelated.php b/tests/Fixtures/TestBundle/Entity/DummyTableInheritanceRelated.php
index e0032d28b4f..3ee6d0d868a 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyTableInheritanceRelated.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyTableInheritanceRelated.php
@@ -37,7 +37,7 @@ class DummyTableInheritanceRelated
     #[ORM\OneToMany(targetEntity: DummyTableInheritance::class, mappedBy: 'parent')]
     #[ORM\OrderBy(['id' => 'ASC'])]
     #[Groups(['default'])]
-    private Collection|iterable $children;
+    private Collection $children;
 
     public function __construct()
     {
@@ -49,12 +49,12 @@ public function getId(): ?int
         return $this->id;
     }
 
-    public function getChildren(): Collection|iterable
+    public function getChildren(): Collection
     {
         return $this->children;
     }
 
-    public function setChildren(Collection|iterable $children)
+    public function setChildren(Collection $children)
     {
         $this->children = $children;
 
diff --git a/tests/Fixtures/TestBundle/Entity/DummyWithCollectDenormalizationErrors.php b/tests/Fixtures/TestBundle/Entity/DummyWithCollectDenormalizationErrors.php
index 8953503d7d4..d3e49bfab2d 100644
--- a/tests/Fixtures/TestBundle/Entity/DummyWithCollectDenormalizationErrors.php
+++ b/tests/Fixtures/TestBundle/Entity/DummyWithCollectDenormalizationErrors.php
@@ -52,7 +52,7 @@ class DummyWithCollectDenormalizationErrors
     public ?RelatedDummy $relatedDummy = null;
 
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     public function __construct(string $baz, ?string $qux = null)
     {
diff --git a/tests/Fixtures/TestBundle/Entity/FourthLevel.php b/tests/Fixtures/TestBundle/Entity/FourthLevel.php
index b62eaed1b27..e1094d56c5d 100644
--- a/tests/Fixtures/TestBundle/Entity/FourthLevel.php
+++ b/tests/Fixtures/TestBundle/Entity/FourthLevel.php
@@ -46,7 +46,7 @@ class FourthLevel
     #[Groups(['barcelona', 'chicago'])]
     private int $level = 4;
     #[ORM\OneToMany(targetEntity: ThirdLevel::class, cascade: ['persist'], mappedBy: 'badFourthLevel')]
-    public Collection|iterable|null $badThirdLevel = null;
+    public ?Collection $badThirdLevel = null;
 
     public function getId(): ?int
     {
diff --git a/tests/Fixtures/TestBundle/Entity/NetworkPathRelationDummy.php b/tests/Fixtures/TestBundle/Entity/NetworkPathRelationDummy.php
index f743fbf6432..af1cc82b4a0 100644
--- a/tests/Fixtures/TestBundle/Entity/NetworkPathRelationDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/NetworkPathRelationDummy.php
@@ -28,7 +28,7 @@ class NetworkPathRelationDummy
     #[ORM\Column(type: 'integer')]
     private $id;
     #[ORM\OneToMany(targetEntity: NetworkPathDummy::class, mappedBy: 'networkPathRelationDummy')]
-    public Collection|iterable $networkPathDummies;
+    public Collection $networkPathDummies;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/OptionalRequiredDummy.php b/tests/Fixtures/TestBundle/Entity/OptionalRequiredDummy.php
index 4ac60db1e85..25d35d7c480 100644
--- a/tests/Fixtures/TestBundle/Entity/OptionalRequiredDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/OptionalRequiredDummy.php
@@ -53,7 +53,7 @@ class OptionalRequiredDummy
 
     #[ORM\OneToMany(targetEntity: RelatedToDummyFriend::class, cascade: ['persist'], mappedBy: 'relatedDummy')]
     #[Groups(['fakemanytomany', 'friends'])]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
 
     public function __construct()
     {
@@ -93,7 +93,7 @@ public function setThirdLevelRequired(ThirdLevel $thirdLevelRequired): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/Person.php b/tests/Fixtures/TestBundle/Entity/Person.php
index d17c774ca75..2f95121c9d3 100644
--- a/tests/Fixtures/TestBundle/Entity/Person.php
+++ b/tests/Fixtures/TestBundle/Entity/Person.php
@@ -50,10 +50,10 @@ class Person
 
     #[ORM\OneToMany(targetEntity: PersonToPet::class, mappedBy: 'person')]
     #[Groups(['people.pets'])]
-    public Collection|iterable $pets;
+    public Collection $pets;
 
     #[ORM\OneToMany(targetEntity: Greeting::class, mappedBy: 'sender')]
-    public Collection|iterable|null $sentGreetings = null;
+    public ?Collection $sentGreetings = null;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/Pet.php b/tests/Fixtures/TestBundle/Entity/Pet.php
index 85706a4f6a3..08b4485d7e1 100644
--- a/tests/Fixtures/TestBundle/Entity/Pet.php
+++ b/tests/Fixtures/TestBundle/Entity/Pet.php
@@ -36,7 +36,7 @@ class Pet
     #[Groups(['people.pets'])]
     public $name;
     #[ORM\OneToMany(targetEntity: PersonToPet::class, mappedBy: 'pet')]
-    public Collection|iterable $people;
+    public Collection $people;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/RelatedDummy.php b/tests/Fixtures/TestBundle/Entity/RelatedDummy.php
index f51c467159a..89ed41d5b16 100644
--- a/tests/Fixtures/TestBundle/Entity/RelatedDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/RelatedDummy.php
@@ -92,7 +92,7 @@ class RelatedDummy extends ParentDummy implements \Stringable
 
     #[ORM\OneToMany(targetEntity: RelatedToDummyFriend::class, cascade: ['persist'], mappedBy: 'relatedDummy')]
     #[Groups(['fakemanytomany', 'friends'])]
-    public Collection|iterable $relatedToDummyFriend;
+    public Collection $relatedToDummyFriend;
 
     /**
      * @var bool|null A dummy bool
@@ -177,7 +177,7 @@ public function setThirdLevel(?ThirdLevel $thirdLevel = null): void
     /**
      * Get relatedToDummyFriend.
      */
-    public function getRelatedToDummyFriend(): Collection|iterable
+    public function getRelatedToDummyFriend(): Collection
     {
         return $this->relatedToDummyFriend;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/RelatedNormalizedDummy.php b/tests/Fixtures/TestBundle/Entity/RelatedNormalizedDummy.php
index 4c7598f3ece..91d4ac334e2 100644
--- a/tests/Fixtures/TestBundle/Entity/RelatedNormalizedDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/RelatedNormalizedDummy.php
@@ -52,7 +52,7 @@ class RelatedNormalizedDummy
      */
     #[ORM\ManyToMany(targetEntity: CustomNormalizedDummy::class)]
     #[Groups(['related_output', 'related_input'])]
-    public Collection|iterable $customNormalizedDummy;
+    public Collection $customNormalizedDummy;
 
     public function __construct()
     {
@@ -74,12 +74,12 @@ public function getName(): ?string
         return $this->name;
     }
 
-    public function getCustomNormalizedDummy(): Collection|iterable
+    public function getCustomNormalizedDummy(): Collection
     {
         return $this->customNormalizedDummy;
     }
 
-    public function setCustomNormalizedDummy(Collection|iterable $customNormalizedDummy): void
+    public function setCustomNormalizedDummy(Collection $customNormalizedDummy): void
     {
         $this->customNormalizedDummy = $customNormalizedDummy;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/Relation2.php b/tests/Fixtures/TestBundle/Entity/Relation2.php
index 3c9337c8e18..e8f77c3ea8a 100644
--- a/tests/Fixtures/TestBundle/Entity/Relation2.php
+++ b/tests/Fixtures/TestBundle/Entity/Relation2.php
@@ -30,7 +30,7 @@ class Relation2
     #[ORM\GeneratedValue]
     public $id;
     #[ORM\OneToMany(targetEntity: Relation1::class, mappedBy: 'relation2')]
-    public Collection|iterable $relation1s;
+    public Collection $relation1s;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/Relation3.php b/tests/Fixtures/TestBundle/Entity/Relation3.php
index 412b0019544..d4dc32524fa 100644
--- a/tests/Fixtures/TestBundle/Entity/Relation3.php
+++ b/tests/Fixtures/TestBundle/Entity/Relation3.php
@@ -30,14 +30,14 @@ class Relation3
      * @var Collection<int, Relation2>
      */
     #[ORM\ManyToMany(targetEntity: Relation2::class, orphanRemoval: true)]
-    private Collection|iterable $relation2s;
+    private Collection $relation2s;
 
     public function __construct()
     {
         $this->relation2s = new ArrayCollection();
     }
 
-    public function getRelation2s(): Collection|iterable
+    public function getRelation2s(): Collection
     {
         return $this->relation2s;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/SecuredDummy.php b/tests/Fixtures/TestBundle/Entity/SecuredDummy.php
index 3ea5c943ced..2460ab99b50 100644
--- a/tests/Fixtures/TestBundle/Entity/SecuredDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/SecuredDummy.php
@@ -112,7 +112,7 @@ class SecuredDummy
     #[ApiProperty(security: "is_granted('ROLE_ADMIN')")]
     #[ORM\ManyToMany(targetEntity: RelatedDummy::class)]
     #[ORM\JoinTable(name: 'secured_dummy_related_dummy')]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     /**
      * A dummy that only admins can access.
@@ -130,7 +130,7 @@ class SecuredDummy
     #[ApiProperty(security: "is_granted('ROLE_USER')")]
     #[ORM\ManyToMany(targetEntity: RelatedSecuredDummy::class)]
     #[ORM\JoinTable(name: 'secured_dummy_related_secured_dummy')]
-    public Collection|iterable $relatedSecuredDummies;
+    public Collection $relatedSecuredDummies;
 
     /**
      * A dummy that only users can access. The security on RelatedSecuredDummy shouldn't be run.
@@ -147,7 +147,7 @@ class SecuredDummy
      */
     #[ORM\ManyToMany(targetEntity: RelatedSecuredDummy::class)]
     #[ORM\JoinTable(name: 'secured_dummy_public_related_secured_dummy')]
-    public Collection|iterable $publicRelatedSecuredDummies;
+    public Collection $publicRelatedSecuredDummies;
 
     /**
      * A dummy that anyone can access. There is no ApiProperty security, and the security on RelatedSecuredDummy shouldn't be run.
@@ -235,7 +235,7 @@ public function addRelatedDummy(RelatedDummy $relatedDummy): void
         $this->relatedDummies->add($relatedDummy);
     }
 
-    public function getRelatedDummies(): Collection|iterable
+    public function getRelatedDummies(): Collection
     {
         return $this->relatedDummies;
     }
@@ -255,7 +255,7 @@ public function addRelatedSecuredDummy(RelatedSecuredDummy $relatedSecuredDummy)
         $this->relatedSecuredDummies->add($relatedSecuredDummy);
     }
 
-    public function getRelatedSecuredDummies(): Collection|iterable
+    public function getRelatedSecuredDummies(): Collection
     {
         return $this->relatedSecuredDummies;
     }
@@ -275,7 +275,7 @@ public function addPublicRelatedSecuredDummy(RelatedSecuredDummy $publicRelatedS
         $this->publicRelatedSecuredDummies->add($publicRelatedSecuredDummy);
     }
 
-    public function getPublicRelatedSecuredDummies(): Collection|iterable
+    public function getPublicRelatedSecuredDummies(): Collection
     {
         return $this->publicRelatedSecuredDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/SlugParentDummy.php b/tests/Fixtures/TestBundle/Entity/SlugParentDummy.php
index 104ca2cc97e..2ee1fe4ef83 100644
--- a/tests/Fixtures/TestBundle/Entity/SlugParentDummy.php
+++ b/tests/Fixtures/TestBundle/Entity/SlugParentDummy.php
@@ -49,7 +49,7 @@ class SlugParentDummy
      * @var Collection<int, SlugChildDummy>
      */
     #[ORM\OneToMany(targetEntity: SlugChildDummy::class, mappedBy: 'parentDummy')]
-    private Collection|iterable $childDummies;
+    private Collection $childDummies;
 
     public function __construct()
     {
@@ -74,7 +74,7 @@ public function setSlug(string $slug): void
     /**
      * @return Collection<SlugChildDummy>
      */
-    public function getChildDummies(): Collection|iterable
+    public function getChildDummies(): Collection
     {
         return $this->childDummies;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/ThirdLevel.php b/tests/Fixtures/TestBundle/Entity/ThirdLevel.php
index 672d2e5ba78..07bc466b06c 100644
--- a/tests/Fixtures/TestBundle/Entity/ThirdLevel.php
+++ b/tests/Fixtures/TestBundle/Entity/ThirdLevel.php
@@ -54,7 +54,7 @@ class ThirdLevel
     public $badFourthLevel;
 
     #[ORM\OneToMany(mappedBy: 'thirdLevel', targetEntity: RelatedDummy::class)]
-    public Collection|iterable $relatedDummies;
+    public Collection $relatedDummies;
 
     public function __construct()
     {
diff --git a/tests/Fixtures/TestBundle/Entity/VoDummyCar.php b/tests/Fixtures/TestBundle/Entity/VoDummyCar.php
index 290266d84ec..62314b43569 100644
--- a/tests/Fixtures/TestBundle/Entity/VoDummyCar.php
+++ b/tests/Fixtures/TestBundle/Entity/VoDummyCar.php
@@ -28,7 +28,7 @@ class VoDummyCar extends VoDummyVehicle
      */
     #[ORM\OneToMany(targetEntity: VoDummyInspection::class, mappedBy: 'car', cascade: ['persist'])]
     #[Groups(['car_read', 'car_write'])]
-    private Collection|iterable $inspections;
+    private Collection $inspections;
 
     public function __construct(string $make, VoDummyInsuranceCompany $insuranceCompany, array $drivers, #[ORM\Column(type: 'integer')] #[Groups(['car_read', 'car_write'])] private int $mileage, #[ORM\Column] #[Groups(['car_read', 'car_write'])] private string $bodyType = 'coupe')
     {
@@ -46,7 +46,7 @@ public function getBodyType(): string
         return $this->bodyType;
     }
 
-    public function getInspections(): Collection|iterable
+    public function getInspections(): Collection
     {
         return $this->inspections;
     }
diff --git a/tests/Fixtures/TestBundle/Entity/VoDummyVehicle.php b/tests/Fixtures/TestBundle/Entity/VoDummyVehicle.php
index 2b6f0e5b86d..8a20c4867dc 100644
--- a/tests/Fixtures/TestBundle/Entity/VoDummyVehicle.php
+++ b/tests/Fixtures/TestBundle/Entity/VoDummyVehicle.php
@@ -27,7 +27,7 @@ abstract class VoDummyVehicle
      */
     #[ORM\ManyToMany(targetEntity: VoDummyDriver::class, cascade: ['persist'])]
     #[Groups(['car_read', 'car_write'])]
-    private Collection|iterable $drivers;
+    private Collection $drivers;
 
     public function __construct(
         #[ORM\Column] #[Groups(['car_read', 'car_write'])] private string $make,
@@ -50,7 +50,7 @@ public function getInsuranceCompany(): ?VoDummyInsuranceCompany
     /**
      * @return Collection<VoDummyDriver>
      */
-    public function getDrivers(): Collection|iterable
+    public function getDrivers(): Collection
     {
         return $this->drivers;
     }