7 files declare their use of PermissionHandlerInterface
- EntityPermissionsForm.php in core/modules/ user/ src/ Form/ EntityPermissionsForm.php 
- EntityPermissionsFormTest.php in core/modules/ user/ tests/ src/ Unit/ Form/ EntityPermissionsFormTest.php 
- ModulesListForm.php in core/modules/ system/ src/ Form/ ModulesListForm.php 
- Permission.php in core/modules/ user/ src/ Plugin/ views/ access/ Permission.php 
- Permissions.php in core/modules/ user/ src/ Plugin/ views/ filter/ Permissions.php 
- SiteMaintenanceModeForm.php in core/modules/ system/ src/ Form/ SiteMaintenanceModeForm.php 
- UserPermissionsForm.php in core/modules/ user/ src/ Form/ UserPermissionsForm.php 
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