6 files declare their use of ConfigFormBaseTrait in Drupal 9
- ContactFormEditForm.php in core/
modules/ contact/ src/ ContactFormEditForm.php - CronForm.php in core/
modules/ system/ src/ Form/ CronForm.php - DefaultProcessor.php in core/
modules/ aggregator/ src/ Plugin/ aggregator/ processor/ DefaultProcessor.php - NegotiationBrowserDeleteForm.php in core/
modules/ language/ src/ Form/ NegotiationBrowserDeleteForm.php - SearchPageListBuilder.php in core/
modules/ search/ src/ SearchPageListBuilder.php - TestProcessor.php in core/
modules/ aggregator/ tests/ modules/ aggregator_test/ src/ Plugin/ aggregator/ processor/ TestProcessor.php