OO-1667: check the input parameters before activating a tabbed pane

src/main/java/org/olat/core/gui/components/tabbedpane/TabbedPane.java

@@ -260,10 +260,13 @@ public class TabbedPane extends Container implements Activateable2 {
 	@Override
 	public void activate(UserRequest ureq, List<ContextEntry> entries, StateEntry state) {
 		if(entries == null || entries.isEmpty()) return;
-
-		int pos = entries.get(0).getOLATResourceable().getResourceableId().intValue();
-		if(pos != selectedPane) {
-			dispatchRequest(ureq, pos);
+		
+		OLATResourceable ores = entries.get(0).getOLATResourceable();
+		if("tab".equals(ores.getResourceableTypeName())) {
+			int pos = ores.getResourceableId().intValue();
+			if(pos != selectedPane && pos >= 0 && pos < getTabCount()) {
+				dispatchRequest(ureq, pos);
+			}
 		}
 	}
 }
\ No newline at end of file

src/main/java/org/olat/group/ui/edit/BusinessGroupEditController.java

@@ -317,7 +317,6 @@ public class BusinessGroupEditController extends BasicController implements Cont
 	}
 	
 	@Override
-	//fxdiff BAKS-7 Resume function
 	public void activate(UserRequest ureq, List<ContextEntry> entries, StateEntry state) {
 		if(entries == null || entries.isEmpty() || tabbedPane == null) return;
 		tabbedPane.activate(ureq, entries, state);