...core/gui/control/generic/iframe/IFrameDeliveryMapper.java

src/main/java/org/olat/core/util/mail/ContactList.java

...java/org/olat/core/util/mail/manager/MailManagerImpl.java

src/main/java/org/olat/modules/lecture/LectureService.java

...dules/lecture/manager/AbsenceNoticeToLectureBlockDAO.java

.../org/olat/modules/lecture/manager/LectureServiceImpl.java

.../olat/modules/lecture/restapi/LectureBlockWebService.java

...dules/lecture/ui/ConfirmDeleteLectureBlockController.java

...t/modules/lecture/ui/LectureListRepositoryController.java

.../org/olat/modules/lecture/ui/_content/confirm_delete.html

.../olat/modules/lecture/ui/_i18n/LocalStrings_de.properties

.../olat/modules/lecture/ui/_i18n/LocalStrings_en.properties

...s/lecture/manager/AbsenceNoticeToLectureBlockDAOTest.java

.../org/olat/modules/lecture/manager/LectureServiceTest.java