diff --git a/src/test/java/org/gridsuite/study/server/CaseTest.java b/src/test/java/org/gridsuite/study/server/CaseTest.java
index 83aafef4e..99a778b3c 100644
--- a/src/test/java/org/gridsuite/study/server/CaseTest.java
+++ b/src/test/java/org/gridsuite/study/server/CaseTest.java
@@ -77,7 +77,7 @@ class CaseTest {
     private static final String STUDY_UPDATE_DESTINATION = "study.update";
 
     @BeforeEach
-    void setup(final MockWebServer server) throws Exception {
+    void setup(final MockWebServer server) {
         // Ask the server for its URL. You'll need this to make HTTP requests.
         HttpUrl baseHttpUrl = server.url("");
         String baseUrl = baseHttpUrl.toString().substring(0, baseHttpUrl.toString().length() - 1);
diff --git a/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java b/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java
index 9a1bc2c57..698815081 100644
--- a/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java
+++ b/src/test/java/org/gridsuite/study/server/NetworkModificationTest.java
@@ -221,7 +221,7 @@ class NetworkModificationTest {
     private static final String ERROR_MESSAGE = "nullPointerException: unexpected null somewhere";
 
     @BeforeEach
-    void setup(final MockWebServer server) throws Exception {
+    void setup(final MockWebServer server) {
         ReadOnlyDataSource dataSource = new ResourceDataSource("testCase", new ResourceSet("", TEST_FILE));
         Network network = new XMLImporter().importData(dataSource, new NetworkFactoryImpl(), null);
         network.getVariantManager().cloneVariant(VariantManagerConstants.INITIAL_VARIANT_ID, VARIANT_ID);
diff --git a/src/test/java/org/gridsuite/study/server/NetworkModificationTreeTest.java b/src/test/java/org/gridsuite/study/server/NetworkModificationTreeTest.java
index 807c890af..623dea831 100644
--- a/src/test/java/org/gridsuite/study/server/NetworkModificationTreeTest.java
+++ b/src/test/java/org/gridsuite/study/server/NetworkModificationTreeTest.java
@@ -19,8 +19,6 @@
 import com.jayway.jsonpath.spi.mapper.MappingProvider;
 import com.powsybl.iidm.network.Network;
 import com.powsybl.iidm.network.VariantManager;
-import com.powsybl.loadflow.LoadFlowResult;
-import com.powsybl.loadflow.LoadFlowResultImpl;
 import com.powsybl.network.store.client.NetworkStoreService;
 import lombok.SneakyThrows;
 import mockwebserver3.Dispatcher;
@@ -184,7 +182,7 @@ class NetworkModificationTreeTest {
     private static final String ELEMENT_UPDATE_DESTINATION = "element.update";
 
     @BeforeEach
-    void setUp(final MockWebServer server) throws Exception {
+    void setUp(final MockWebServer server) {
         Configuration.defaultConfiguration();
         MockitoAnnotations.initMocks(this);
         objectMapper.enable(DeserializationFeature.USE_LONG_FOR_INTS);
@@ -220,13 +218,6 @@ public Set<Option> options() {
             }
         });
 
-        final LoadFlowResult loadFlowResult = new LoadFlowResultImpl(true, Map.of("key_1", "metric_1", "key_2", "metric_2"), "logs",
-                                                List.of(new LoadFlowResultImpl.ComponentResultImpl(1, 1, LoadFlowResult.ComponentResult.Status.CONVERGED, 10, "bus_1", 5., 4.3),
-                                                        new LoadFlowResultImpl.ComponentResultImpl(2, 2, LoadFlowResult.ComponentResult.Status.FAILED, 20, "bus_2", 10., 2.5)));
-        final LoadFlowResult loadFlowResult2 = new LoadFlowResultImpl(false, Map.of("key_3", "metric_3", "key_4", "metric_4"), "logs2",
-            List.of(new LoadFlowResultImpl.ComponentResultImpl(0, 0, LoadFlowResult.ComponentResult.Status.MAX_ITERATION_REACHED, 30, "bus_2", 8., 2.6),
-                new LoadFlowResultImpl.ComponentResultImpl(0, 1, LoadFlowResult.ComponentResult.Status.FAILED, 15, "bus_3", 13., 1.67)));
-
         // Ask the server for its URL. You'll need this to make HTTP requests.
         HttpUrl baseHttpUrl = server.url("");
         String baseUrl = baseHttpUrl.toString().substring(0, baseHttpUrl.toString().length() - 1);
diff --git a/src/test/java/org/gridsuite/study/server/NonEvacuatedEnergyTest.java b/src/test/java/org/gridsuite/study/server/NonEvacuatedEnergyTest.java
index cbd81159f..0acbf1f08 100644
--- a/src/test/java/org/gridsuite/study/server/NonEvacuatedEnergyTest.java
+++ b/src/test/java/org/gridsuite/study/server/NonEvacuatedEnergyTest.java
@@ -157,7 +157,7 @@ class NonEvacuatedEnergyTest {
     private static final String NON_EVACUATED_ENERGY_FAILED_DESTINATION = "nonEvacuatedEnergy.failed";
 
     @BeforeEach
-    void setup(final MockWebServer server) throws Exception {
+    void setup(final MockWebServer server) {
         objectWriter = objectMapper.writer().withDefaultPrettyPrinter();
 
         wireMock = new WireMockServer(wireMockConfig().dynamicPort().extensions(new SendInput(input)));
diff --git a/src/test/java/org/gridsuite/study/server/SecurityAnalysisTest.java b/src/test/java/org/gridsuite/study/server/SecurityAnalysisTest.java
index f5aa63925..45a6e61cb 100644
--- a/src/test/java/org/gridsuite/study/server/SecurityAnalysisTest.java
+++ b/src/test/java/org/gridsuite/study/server/SecurityAnalysisTest.java
@@ -10,7 +10,6 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.ObjectWriter;
 import com.powsybl.commons.exceptions.UncheckedInterruptedException;
-import com.powsybl.loadflow.LoadFlowParameters;
 import com.powsybl.security.LimitViolationType;
 import com.powsybl.security.SecurityAnalysisParameters;
 import lombok.SneakyThrows;
@@ -21,7 +20,6 @@
 import mockwebserver3.junit5.internal.MockWebServerExtension;
 import okhttp3.Headers;
 import okhttp3.HttpUrl;
-import org.gridsuite.study.server.dto.LoadFlowParametersInfos;
 import org.gridsuite.study.server.dto.NodeReceiver;
 import org.gridsuite.study.server.networkmodificationtree.dto.*;
 import org.gridsuite.study.server.notification.NotificationService;
@@ -175,10 +173,6 @@ void setup(final MockWebServer server) throws Exception {
         reportService.setReportServerBaseUri(baseUrl);
         loadFlowService.setLoadFlowServerBaseUri(baseUrl);
 
-        LoadFlowParametersInfos loadFlowParametersInfos = LoadFlowParametersInfos.builder()
-            .commonParameters(LoadFlowParameters.load())
-            .specificParametersPerProvider(Map.of())
-            .build();
         limitTypeJson = objectMapper.writeValueAsString(List.of(LimitViolationType.CURRENT.name(), LimitViolationType.HIGH_VOLTAGE.name()));
 
         final Dispatcher dispatcher = new Dispatcher() {
diff --git a/src/test/java/org/gridsuite/study/server/SingleLineDiagramTest.java b/src/test/java/org/gridsuite/study/server/SingleLineDiagramTest.java
index cc2e66ee5..91d48e210 100644
--- a/src/test/java/org/gridsuite/study/server/SingleLineDiagramTest.java
+++ b/src/test/java/org/gridsuite/study/server/SingleLineDiagramTest.java
@@ -133,7 +133,7 @@ class SingleLineDiagramTest {
     private LoadFlowService loadFlowService;
 
     @BeforeEach
-    void setup(final MockWebServer server) throws Exception {
+    void setup(final MockWebServer server) {
         objectWriter = objectMapper.writer().withDefaultPrettyPrinter();
 
         wireMockServer = new WireMockServer(wireMockConfig().dynamicPort());
diff --git a/src/test/java/org/gridsuite/study/server/StudyServiceTest.java b/src/test/java/org/gridsuite/study/server/StudyServiceTest.java
index c0e002864..6f784dbdd 100644
--- a/src/test/java/org/gridsuite/study/server/StudyServiceTest.java
+++ b/src/test/java/org/gridsuite/study/server/StudyServiceTest.java
@@ -114,7 +114,7 @@ class StudyServiceTest {
     private ShortCircuitService shortCircuitService;
 
     @BeforeEach
-    void setup() throws Exception {
+    void setup() {
         wireMockServer = new WireMockServer(wireMockConfig().dynamicPort().extensions(new SendInput(input)));
         wireMockUtils = new WireMockUtils(wireMockServer);
 
diff --git a/src/test/java/org/gridsuite/study/server/service/ReportServiceTest.java b/src/test/java/org/gridsuite/study/server/service/ReportServiceTest.java
index 5997deaca..df7086c5e 100644
--- a/src/test/java/org/gridsuite/study/server/service/ReportServiceTest.java
+++ b/src/test/java/org/gridsuite/study/server/service/ReportServiceTest.java
@@ -99,7 +99,7 @@ class ReportServiceTest {
     private static final long TIMEOUT = 1000;
 
     @BeforeEach
-    void setup(final MockWebServer server) throws Exception {
+    void setup(final MockWebServer server) {
         // Ask the server for its URL. You'll need this to make HTTP requests.
         HttpUrl baseHttpUrl = server.url("");
         String baseUrl = baseHttpUrl.toString().substring(0, baseHttpUrl.toString().length() - 1);
diff --git a/src/test/java/org/gridsuite/study/server/utils/TestUtils.java b/src/test/java/org/gridsuite/study/server/utils/TestUtils.java
index acf45ec5c..79ed800b7 100644
--- a/src/test/java/org/gridsuite/study/server/utils/TestUtils.java
+++ b/src/test/java/org/gridsuite/study/server/utils/TestUtils.java
@@ -152,7 +152,7 @@ public static void assertQueuesEmptyThenClear(List<String> destinations, OutputD
         }
     }
 
-    public static void assertServerRequestsEmptyThenShutdown(MockWebServer server) throws UncheckedInterruptedException, IOException {
+    public static void assertServerRequestsEmptyThenShutdown(MockWebServer server) throws UncheckedInterruptedException {
         try {
             assertNull(getRequestsDone(1, server), "Should not be any http requests : ");
         } catch (NullPointerException e) {