8 files declare their use of EntityReferenceFieldItemListInterface in Drupal 9
- EntityReferenceFieldNormalizer.php in core/
modules/ jsonapi/ src/ Normalizer/ EntityReferenceFieldNormalizer.php - EntityReferenceFormatterBase.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldFormatter/ EntityReferenceFormatterBase.php - FileMediaFormatterBase.php in core/
modules/ file/ src/ Plugin/ Field/ FieldFormatter/ FileMediaFormatterBase.php - HalEntityNormalizationTrait.php in core/
modules/ hal/ tests/ src/ Functional/ EntityResource/ HalEntityNormalizationTrait.php - ImageFormatterBase.php in core/
modules/ image/ src/ Plugin/ Field/ FieldFormatter/ ImageFormatterBase.php - Relationship.php in core/
modules/ jsonapi/ src/ JsonApiResource/ Relationship.php - ResourceIdentifier.php in core/
modules/ jsonapi/ src/ JsonApiResource/ ResourceIdentifier.php - ResourceObjectNormalizer.php in core/
modules/ jsonapi/ src/ Normalizer/ ResourceObjectNormalizer.php