src/main/java/org/olat/core/commons/persistence/DBImpl.java

...java/org/olat/instantMessaging/manager/ChatLogHelper.java

src/main/java/org/olat/instantMessaging/model/Buddy.java

...a/org/olat/instantMessaging/ui/ChatManagerController.java

...a/org/olat/instantMessaging/ui/IMBuddyListController.java

...t/instantMessaging/ui/InstantMessagingMainController.java

src/main/java/org/olat/instantMessaging/ui/Roster.java

...n/java/org/olat/instantMessaging/ui/_content/buddies.html

...rg/olat/instantMessaging/ui/_content/buddies_content.html

...main/java/org/olat/instantMessaging/ui/_content/chat.html

src/main/webapp/static/themes/openolat/all/modules/_im.scss

src/main/webapp/static/themes/openolat/layout.css

src/main/webapp/static/themes/openolatexample/layout.css