diff --git a/src/main/java/org/gridsuite/study/server/service/ConsumerService.java b/src/main/java/org/gridsuite/study/server/service/ConsumerService.java
index 0bbfb7adf..62e0cae68 100644
--- a/src/main/java/org/gridsuite/study/server/service/ConsumerService.java
+++ b/src/main/java/org/gridsuite/study/server/service/ConsumerService.java
@@ -395,12 +395,11 @@ public Consumer<Message<String>> consumeCaseImportFailed() {
                     UUID studyUuid = receiver.getStudyUuid();
                     String userId = receiver.getUserId();
 
-                    switch (receiver.getCaseImportAction()) {
-                        case STUDY_CREATION -> {
-                            studyService.deleteStudyIfNotCreationInProgress(studyUuid, userId);
-                            notificationService.emitStudyCreationError(studyUuid, userId, errorMessage);
-                        }
-                        case ROOT_NETWORK_CREATION, ROOT_NETWORK_MODIFICATION -> notificationService.emitRootNetworksUpdateFailed(studyUuid, errorMessage);
+                    if (receiver.getCaseImportAction() == CaseImportAction.STUDY_CREATION) {
+                        studyService.deleteStudyIfNotCreationInProgress(studyUuid, userId);
+                        notificationService.emitStudyCreationError(studyUuid, userId, errorMessage);
+                    } else {
+                        notificationService.emitRootNetworksUpdateFailed(studyUuid, errorMessage);
                     }
                 } catch (Exception e) {
                     LOGGER.error(e.toString(), e);
diff --git a/src/main/java/org/gridsuite/study/server/service/StudyService.java b/src/main/java/org/gridsuite/study/server/service/StudyService.java
index 40812a2a9..37e692f9e 100644
--- a/src/main/java/org/gridsuite/study/server/service/StudyService.java
+++ b/src/main/java/org/gridsuite/study/server/service/StudyService.java
@@ -393,9 +393,9 @@ public void duplicateStudyAsync(BasicStudyInfos basicStudyInfos, UUID sourceStud
 
             StudyEntity duplicatedStudy = duplicateStudy(basicStudyInfos, sourceStudyUuid, userId);
 
-            rootNetworkService.getStudyRootNetworks(duplicatedStudy.getId()).forEach(rootNetworkEntity -> {
-                reindexStudy(duplicatedStudy, rootNetworkEntity.getId());
-            });
+            rootNetworkService.getStudyRootNetworks(duplicatedStudy.getId()).forEach(rootNetworkEntity ->
+                reindexStudy(duplicatedStudy, rootNetworkEntity.getId())
+            );
         } catch (Exception e) {
             LOGGER.error(e.toString(), e);
         } finally {
@@ -1495,7 +1495,6 @@ public void duplicateStudySubtree(UUID sourceStudyUuid, UUID targetStudyUuid, UU
         checkStudyContainsNode(targetStudyUuid, referenceNodeUuid);
 
         StudyEntity studyEntity = studyRepository.findById(targetStudyUuid).orElseThrow(() -> new StudyException(STUDY_NOT_FOUND));
-        //TODO: tofix, should not have rootNetworkUuid here, but this method returns data linked to a specific root network
         AbstractNode studySubTree = networkModificationTreeService.getStudySubtree(sourceStudyUuid, parentNodeToCopyUuid, null);
         UUID duplicatedNodeUuid = networkModificationTreeService.cloneStudyTree(studySubTree, referenceNodeUuid, studyEntity);
         notificationService.emitSubtreeInserted(targetStudyUuid, duplicatedNodeUuid, referenceNodeUuid);
diff --git a/src/main/java/org/gridsuite/study/server/service/SupervisionService.java b/src/main/java/org/gridsuite/study/server/service/SupervisionService.java
index 418a6a78c..434a59a49 100644
--- a/src/main/java/org/gridsuite/study/server/service/SupervisionService.java
+++ b/src/main/java/org/gridsuite/study/server/service/SupervisionService.java
@@ -304,7 +304,6 @@ private Integer deleteStateEstimationResults() {
     public void invalidateAllNodesBuilds(UUID studyUuid) {
         AtomicReference<Long> startTime = new AtomicReference<>();
         startTime.set(System.nanoTime());
-        //TODO: to fix, should not have any root network uuid here
         UUID rootNodeUuid = networkModificationTreeService.getStudyRootNodeUuid(studyUuid);
         //TODO: to parallelize ?
         rootNetworkService.getStudyRootNetworks(studyUuid).forEach(rootNetworkEntity ->
diff --git a/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java b/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java
index 28ea53f53..4f8589c42 100644
--- a/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java
+++ b/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java
@@ -227,7 +227,6 @@ class NetworkModificationTest {
     private UUID userNoProfileStubId;
 
     private static final String ERROR_MESSAGE = "nullPointerException: unexpected null somewhere";
-    private ObjectMapper objectMapper;
 
     @BeforeEach
     void setup(final MockWebServer server) {