From fa5d3fed2405121af874b564f81c16a6f12138dd Mon Sep 17 00:00:00 2001
From: anhefti <andreas.hefti@let.ethz.ch>
Date: Wed, 28 Feb 2024 11:07:01 +0100
Subject: [PATCH] minor fix with quit password change in Exam

---
 .../webservice/weblayer/api/ExamAdministrationController.java  | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java b/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java
index 75df0c6f..9cbb5076 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java
@@ -707,6 +707,9 @@ public class ExamAdministrationController extends EntityController<Exam, Exam> {
             examSessionService.hasActiveSEBClientConnections(exam.id)) {
             final Exam oldExam = this.examDAO.byPK(exam.id).getOrThrow();
             final CharSequence pwd = cryptor.decrypt(oldExam.quitPassword).getOr(oldExam.quitPassword);
+            if (StringUtils.isBlank(pwd) && StringUtils.isBlank(exam.quitPassword)) {
+                return exam;
+            }
             if (!Objects.equals(pwd, exam.quitPassword)) {
                 throw new APIMessageException(APIMessage.fieldValidationError(
                         new FieldError(