fixed logout error

2020-11-12 14:05:59 +01:00 · 2020-11-12 14:05:59 +01:00 · 230b6edc9f
commit 230b6edc9f
parent bee3f7a059
1 changed files with 1 additions and 1 deletions
--- a/src/main/java/ch/ethz/seb/sebserver/gui/service/session/ProctoringGUIService.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gui/service/session/ProctoringGUIService.java
@ -234,7 +234,7 @@ public class ProctoringGUIService {
    public void clear() {

        if (!this.rooms.isEmpty()) {
-            this.rooms.keySet()
+            new ArrayList<>(this.rooms.keySet())
                    .stream()
                    .forEach(this::closeRoom);
            this.rooms.clear();