diff --git a/src/main/java/de/tum/cit/aet/artemis/core/service/CourseService.java b/src/main/java/de/tum/cit/aet/artemis/core/service/CourseService.java
index 1b037532e453..350a165409b8 100644
--- a/src/main/java/de/tum/cit/aet/artemis/core/service/CourseService.java
+++ b/src/main/java/de/tum/cit/aet/artemis/core/service/CourseService.java
@@ -350,7 +350,7 @@ public Course findOneWithExercisesAndLecturesAndExamsAndCompetenciesAndTutorialG
         course.setExercises(exerciseRepository.findByCourseIdWithCategories(course.getId()));
         course.setExercises(exerciseService.filterExercisesForCourse(course, user));
         exerciseService.loadExerciseDetailsIfNecessary(course, user);
-        course.setExams(examRepository.findByCourseIdsForUser(Set.of(course.getId()), user.getId(), user.getGroups(), ZonedDateTime.now()));
+        course.setExams(examRepository.findByCourseIdForUser(course.getId(), user.getId(), user.getGroups(), ZonedDateTime.now()));
         // TODO: in the future, we only want to know if lectures exist, the actual lectures will be loaded when the user navigates into the lecture
         course.setLectures(lectureService.filterVisibleLecturesWithActiveAttachments(course, course.getLectures(), user));
         // NOTE: in this call we only want to know if competencies exist in the course, we will load them when the user navigates into them
diff --git a/src/main/java/de/tum/cit/aet/artemis/exam/repository/ExamRepository.java b/src/main/java/de/tum/cit/aet/artemis/exam/repository/ExamRepository.java
index 429ce9b91e39..a884ed754e4a 100644
--- a/src/main/java/de/tum/cit/aet/artemis/exam/repository/ExamRepository.java
+++ b/src/main/java/de/tum/cit/aet/artemis/exam/repository/ExamRepository.java
@@ -56,30 +56,30 @@ public interface ExamRepository extends ArtemisJpaRepository<Exam, Long> {
     List<Exam> findByCourseIdWithExerciseGroupsAndExercises(@Param("courseId") long courseId);
 
     /**
-     * Find all exams for multiple courses that are already visible to the user (either registered, at least tutor or the exam is a test exam)
+     * Find all exams for a given course that are already visible to the user (either registered, at least tutor or the exam is a test exam)
      *
-     * @param courseIds  set of courseIds that the exams should be retrieved
+     * @param courseId   the course for which the exams should be retrieved
      * @param userId     the id of the user requesting the exams
      * @param groupNames the groups of the user requesting the exams
      * @param now        the current date, typically ZonedDateTime.now()
      * @return a set of all visible exams for the user in the provided courses
      */
     @Query("""
-            SELECT e
+            SELECT DISTINCT e
             FROM Exam e
-                LEFT JOIN e.examUsers registeredUsers
-            WHERE e.course.id IN :courseIds
+                LEFT JOIN e.examUsers eu
+                LEFT JOIN e.course c
+            WHERE c.id = :courseId
                 AND e.visibleDate <= :now
                 AND (
-                    registeredUsers.user.id = :userId
-                    OR e.course.teachingAssistantGroupName IN :groupNames
-                    OR e.course.editorGroupName IN :groupNames
-                    OR e.course.instructorGroupName IN :groupNames
+                    eu.user.id = :userId
+                    OR c.teachingAssistantGroupName IN :groupNames
+                    OR c.editorGroupName IN :groupNames
+                    OR c.instructorGroupName IN :groupNames
                     OR e.testExam = TRUE
                 )
             """)
-    Set<Exam> findByCourseIdsForUser(@Param("courseIds") Set<Long> courseIds, @Param("userId") long userId, @Param("groupNames") Set<String> groupNames,
-            @Param("now") ZonedDateTime now);
+    Set<Exam> findByCourseIdForUser(@Param("courseId") Long courseId, @Param("userId") long userId, @Param("groupNames") Set<String> groupNames, @Param("now") ZonedDateTime now);
 
     @Query("""
             SELECT new de.tum.cit.aet.artemis.core.dto.CourseContentCount(
diff --git a/src/test/java/de/tum/cit/aet/artemis/iris/PyrisEventSystemIntegrationTest.java b/src/test/java/de/tum/cit/aet/artemis/iris/PyrisEventSystemIntegrationTest.java
index 62bc019b38a8..95b620850ddd 100644
--- a/src/test/java/de/tum/cit/aet/artemis/iris/PyrisEventSystemIntegrationTest.java
+++ b/src/test/java/de/tum/cit/aet/artemis/iris/PyrisEventSystemIntegrationTest.java
@@ -253,7 +253,7 @@ public void handleEvent(IrisExerciseChatSessionService service) {
 
     }
 
-    @Test()
+    @Test
     @WithMockUser(username = TEST_PREFIX + "student1", roles = "USER")
     void testShouldNotFireProgressStalledEventWithEventDisabled() {
         // Find settings for the current exercise
diff --git a/src/test/java/de/tum/cit/aet/artemis/programming/aelous/AeolusTemplateResourceTest.java b/src/test/java/de/tum/cit/aet/artemis/programming/aelous/AeolusTemplateResourceTest.java
index 8219e383912d..3c82d8858409 100644
--- a/src/test/java/de/tum/cit/aet/artemis/programming/aelous/AeolusTemplateResourceTest.java
+++ b/src/test/java/de/tum/cit/aet/artemis/programming/aelous/AeolusTemplateResourceTest.java
@@ -56,7 +56,7 @@ void testGetAeolusTemplateFile(String templateKey, Integer expectedScriptActions
         assertWindfileIsCorrect(windfile, expectedScriptActions);
     }
 
-    @Test()
+    @Test
     void testInvalidWindfileDeserialization() {
         try {
             String invalidWindfile = """
@@ -82,7 +82,7 @@ void testInvalidWindfileDeserialization() {
         }
     }
 
-    @Test()
+    @Test
     void testValidWindfileDeserializationWithClass() throws JsonProcessingException {
         String validWindfile = """
                 {
@@ -117,7 +117,7 @@ void testValidWindfileDeserializationWithClass() throws JsonProcessingException
         assertThat(windfile.getActions().getFirst()).isInstanceOf(ScriptAction.class);
     }
 
-    @Test()
+    @Test
     void testValidWindfileWithInvalidAction() {
         // NOTE: the misspellings are intended
         String invalidWindfile = """