...lat/core/commons/persistence/_spring/core_persistence.xml

.../course/groupsandrights/PersistingCourseGroupManager.java

src/main/java/org/olat/group/BusinessGroupMembership.java

src/main/java/org/olat/group/BusinessGroupService.java

src/main/java/org/olat/group/manager/BusinessGroupDAO.java

...java/org/olat/group/manager/BusinessGroupRelationDAO.java

...java/org/olat/group/manager/BusinessGroupServiceImpl.java

src/main/java/org/olat/group/model/BGMembership.java

.../org/olat/group/model/BusinessGroupMembershipImpl.hbm.xml

...ava/org/olat/group/model/BusinessGroupMembershipImpl.java

...at/group/ui/main/AbstractBusinessGroupListController.java

src/main/java/org/olat/group/ui/main/BGMembership.java

src/main/java/org/olat/group/ui/main/BGRoleCellRenderer.java

src/main/java/org/olat/group/ui/main/BGTableItem.java

.../org/olat/group/ui/wizard/BGUserManagementController.java

.../group/ui/wizard/BGUserManagementGroupTableDataModel.java

src/main/resources/database/mysql/alter_8_1_x_to_8_2_0.sql

src/test/java/org/olat/group/test/BusinessGroupDAOTest.java

...ava/org/olat/group/test/BusinessGroupRelationDAOTest.java