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

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

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

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

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

...main/java/org/olat/group/model/BusinessGroupLazyImpl.java

...org/olat/group/ui/portlet/GroupsPortletRunController.java

src/main/resources/database/mysql/alter_10_0_0_to_10_1_0.sql

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

...main/resources/database/oracle/alter_10_0_0_to_10_1_0.sql

src/main/resources/database/oracle/setupDatabase.sql

.../resources/database/postgresql/alter_10_0_0_to_10_1_0.sql

src/main/resources/database/postgresql/setupDatabase.sql

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