src/main/java/org/olat/course/CourseFactory.java

src/main/java/org/olat/course/ICourse.java

src/main/java/org/olat/course/PersistingCourseImpl.java

...va/org/olat/course/repository/ImportCourseController.java

...ourse/repository/ImportPortfolioReferencesController.java

...rg/olat/course/repository/ImportReferencesController.java

...se/repository/ImportSharedfolderReferencesController.java

.../olat/repository/controllers/RepositoryAddController.java

...at/restapi/repository/course/CourseElementWebService.java

...org/olat/restapi/repository/course/CoursesWebService.java

src/test/java/org/olat/restapi/Course_with_blog.zip

src/test/java/org/olat/restapi/CoursesTest.java