Fix JSON mapping linting against subset of builtin types

lib/Doctrine/ORM/Tools/SchemaValidator.php

@@ -406,6 +406,13 @@ function (array $fieldMapping) use ($class): ?string {
                             );
                         }
 
+                        if (
+                            $fieldMapping['type'] === 'json'
+                            && in_array($propertyType, ['string', 'int', 'float', 'bool', 'true', 'false', 'mixed', 'null'], true)
+                        ) {
+                            return null;
+                        }
+
                         return sprintf(
                             "The field '%s#%s' has the property type '%s' that differs from the metadata field type '%s' returned by the '%s' DBAL type.",
                             $class->name,

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11072/GH11072EntityAdvanced.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11072;
+
+use Doctrine\ORM\Mapping\Column;
+use Doctrine\ORM\Mapping\Entity;
+
+/**
+ * @Entity
+ */
+class GH11072EntityAdvanced extends GH11072EntityBasic
+{
+    /** @Column(type="json") */
+    public mixed $anything;
+
+    /** @Column(type="json") */
+    public true $alwaysTrue = true;
+
+    /** @Column(type="json") */
+    public false $alwaysFalse = false;
+
+    /** @Column(type="json") */
+    public null $alwaysNull = null;
+}

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11072/GH11072EntityBasic.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11072;
+
+use Doctrine\ORM\Mapping\Column;
+use Doctrine\ORM\Mapping\Entity;
+use Doctrine\ORM\Mapping\GeneratedValue;
+use Doctrine\ORM\Mapping\Id;
+
+/**
+ * @Entity
+ */
+class GH11072EntityBasic
+{
+    /**
+     * @Id
+     * @Column(type="integer")
+     * @GeneratedValue
+     * @var int
+     */
+    public $id;
+
+    /** @Column(type="json") */
+    public string $jsonString = 'test';
+
+    /** @Column(type="json") */
+    public int $age = 99;
+
+    /** @Column(type="json") */
+    public float $score = 0.0;
+
+    /** @Column(type="json", nullable=true) */
+    public ?bool $trinary = null;
+
+    /** @Column(type="json") */
+    public array $metadata = [];
+}

tests/Doctrine/Tests/ORM/Functional/Ticket/GH11072/GH11072Test.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11072;
+
+use Doctrine\ORM\Tools\SchemaValidator;
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+/**
+ * @requires PHP >= 7.4
+ */
+final class GH11072Test extends OrmFunctionalTestCase
+{
+    /** @var SchemaValidator */
+    private $validator;
+
+    protected function setUp(): void
+    {
+        $this->_em       = $this->getTestEntityManager();
+        $this->validator = new SchemaValidator($this->_em);
+    }
+
+    public function testAcceptsSubsetOfBuiltinTypesWithoutErrors(): void
+    {
+        $class = $this->_em->getClassMetadata(GH11072EntityBasic::class);
+        $ce    = $this->validator->validateClass($class);
+
+        self::assertSame([], $ce);
+    }
+
+    /**
+     * @requires PHP >= 8.2
+     */
+    public function testAcceptsAdvancedSubsetOfBuiltinTypesWithoutErrors(): void
+    {
+        $class = $this->_em->getClassMetadata(GH11072EntityAdvanced::class);
+        $ce    = $this->validator->validateClass($class);
+
+        self::assertSame([], $ce);
+    }
+}