Fix some compile warnings (#2919)

* Fix some compile warnings
* Some classes made final
* JPA entities made not serializable

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/HawkbitUiApp.java

@@ -11,6 +11,7 @@ package org.eclipse.hawkbit.ui;
 
 import static feign.Util.ISO_8859_1;
 
+import java.io.Serial;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.util.Base64;
@@ -53,6 +54,9 @@ import org.springframework.security.oauth2.core.oidc.user.OidcUser;
 @Import(FeignClientsConfiguration.class)
 public class HawkbitUiApp implements AppShellConfigurator {
 
+    @Serial
+    private static final long serialVersionUID = 1L;
+
     private static final String AUTHORIZATION_HEADER = "Authorization";
     private static final RequestInterceptor AUTHORIZATION = requestTemplate -> {
         final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/MainLayout.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui;
 
+import java.io.Serial;
 import java.util.List;
 import java.util.Optional;
 
@@ -49,10 +50,13 @@ import org.eclipse.hawkbit.ui.view.TargetView;
 /**
  * The main view is a top-level placeholder for other views.
  */
-public class MainLayout extends AppLayout {
+public final class MainLayout extends AppLayout {
 
-    static final List<Class<? extends Component>> DEFAULT_VIEW_PRIORITY = List.of(TargetView.class, DistributionSetView.class,
-            SoftwareModuleView.class, RolloutView.class);
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    static final List<Class<? extends Component>> DEFAULT_VIEW_PRIORITY = List.of(
+            TargetView.class, DistributionSetView.class, SoftwareModuleView.class, RolloutView.class);
     private final transient AuthenticatedUser authenticatedUser;
     private final AccessAnnotationChecker accessChecker;
     private H2 viewTitle;

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/SimpleI18NProvider.java

@@ -10,6 +10,7 @@
 
 package org.eclipse.hawkbit.ui;
 
+import java.io.Serial;
 import java.util.Arrays;
 import java.util.Locale;
 
@@ -19,7 +20,10 @@ import org.springframework.stereotype.Component;
 @Component
 public class SimpleI18NProvider extends DefaultI18NProvider {
 
+    @Serial
+    private static final long serialVersionUID = 1L;
+
     SimpleI18NProvider() {
         super(Arrays.stream(Locale.getAvailableLocales()).toList());
     }
-}
+}

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/VaadinServiceInit.java

@@ -10,6 +10,8 @@
 
 package org.eclipse.hawkbit.ui;
 
+import java.io.Serial;
+
 import com.vaadin.flow.server.ServiceInitEvent;
 import com.vaadin.flow.server.VaadinServiceInitListener;
 import com.vaadin.flow.spring.annotation.SpringComponent;
@@ -19,6 +21,9 @@ import lombok.extern.slf4j.Slf4j;
 @SpringComponent
 public class VaadinServiceInit implements VaadinServiceInitListener {
 
+    @Serial
+    private static final long serialVersionUID = 1L;
+
     @Override
     public void serviceInit(ServiceInitEvent event) {
         // cache zoneId of client as soon as possible

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/component/TargetActionsHistory.java

@@ -12,6 +12,7 @@ package org.eclipse.hawkbit.ui.component;
 
 import static org.eclipse.hawkbit.ui.view.Constants.STATUS;
 
+import java.io.Serial;
 import java.util.List;
 import java.util.Optional;
 
@@ -39,7 +40,10 @@ import org.eclipse.hawkbit.ui.view.TargetView;
 import org.eclipse.hawkbit.ui.view.util.Utils;
 
 @Slf4j
-public class TargetActionsHistory extends Grid<TargetActionsHistory.ActionStatusEntry> {
+public final class TargetActionsHistory extends Grid<TargetActionsHistory.ActionStatusEntry> {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     private final transient HawkbitMgmtClient hawkbitClient;
     private transient MgmtTarget target;

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/AboutView.java

@@ -9,6 +9,8 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
+import java.io.Serial;
+
 import jakarta.annotation.security.RolesAllowed;
 
 import com.vaadin.flow.component.html.H2;
@@ -24,7 +26,10 @@ import org.eclipse.hawkbit.ui.MainLayout;
 @Route(value = "about", layout = MainLayout.class)
 @RouteAlias(value = "", layout = MainLayout.class)
 @RolesAllowed({ "ANONYMOUS" })
-public class AboutView extends VerticalLayout {
+public final class AboutView extends VerticalLayout {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     public AboutView() {
         setSpacing(false);

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/ConfigView.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
+import java.io.Serial;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
@@ -32,12 +33,15 @@ import org.eclipse.hawkbit.ui.MainLayout;
 @Route(value = "config", layout = MainLayout.class)
 @RolesAllowed({ "CONFIG_READ" })
 @Slf4j
-public class ConfigView extends VerticalLayout {
+public final class ConfigView extends VerticalLayout {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     private static final String WIDTH = "width";
     private static final String PX_300 = "300px";
 
-    private final Map<String, MgmtSystemTenantConfigurationValueRequest> configValue = new HashMap<>();
+    private final transient Map<String, MgmtSystemTenantConfigurationValueRequest> configValue = new HashMap<>();
 
     public ConfigView(final HawkbitMgmtClient hawkbitClient) {
         setSpacing(false);

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/DistributionSetView.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
+import java.io.Serial;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
@@ -64,6 +65,9 @@ import org.eclipse.hawkbit.ui.view.util.Utils;
 @Uses(Icon.class)
 public class DistributionSetView extends TableView<MgmtDistributionSet, Long> {
 
+    @Serial
+    private static final long serialVersionUID = 1L;
+
     public DistributionSetView(final HawkbitMgmtClient hawkbitClient) {
         super(
                 new DistributionSetFilter(hawkbitClient),
@@ -184,6 +188,9 @@ public class DistributionSetView extends TableView<MgmtDistributionSet, Long> {
 
     private static class DistributionSetDetails extends FormLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
 
         private final TextArea description = new TextArea("Description");
@@ -238,6 +245,9 @@ public class DistributionSetView extends TableView<MgmtDistributionSet, Long> {
 
     private static class CreateDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
 
         private final Select<MgmtDistributionSetType> type;
@@ -325,6 +335,9 @@ public class DistributionSetView extends TableView<MgmtDistributionSet, Long> {
     @SuppressWarnings({ "java:S1171", "java:S3599" })
     private static class AddSoftwareModulesDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient Set<MgmtSoftwareModule> softwareModules = Collections.synchronizedSet(new HashSet<>());
 
         private AddSoftwareModulesDialog(final long distributionSetId, final HawkbitMgmtClient hawkbitClient) {

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/LoginView.java

@@ -9,6 +9,8 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
+import java.io.Serial;
+
 import com.vaadin.flow.component.login.LoginI18n;
 import com.vaadin.flow.component.login.LoginOverlay;
 import com.vaadin.flow.router.BeforeEnterEvent;
@@ -23,7 +25,10 @@ import org.eclipse.hawkbit.ui.security.AuthenticatedUser;
 @AnonymousAllowed
 @PageTitle("Login")
 @Route(value = "login")
-public class LoginView extends LoginOverlay implements BeforeEnterObserver {
+public final class LoginView extends LoginOverlay implements BeforeEnterObserver {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     private final transient AuthenticatedUser authenticatedUser;
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/RolloutView.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
+import java.io.Serial;
 import java.time.ZoneOffset;
 import java.util.List;
 import java.util.Map;
@@ -63,7 +64,10 @@ import org.springframework.util.ObjectUtils;
 @RolesAllowed({ "ROLLOUT_READ" })
 @Uses(Icon.class)
 @SuppressWarnings({ "java:S1171", "java:S3599" })
-public class RolloutView extends TableView<MgmtRolloutResponseBody, Long> {
+public final class RolloutView extends TableView<MgmtRolloutResponseBody, Long> {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     public RolloutView(final HawkbitMgmtClient hawkbitClient) {
         super(
@@ -105,6 +109,9 @@ public class RolloutView extends TableView<MgmtRolloutResponseBody, Long> {
 
     private static class Actions extends HorizontalLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final long rolloutId;
         private final Grid<MgmtRolloutResponseBody> grid;
         private final transient HawkbitMgmtClient hawkbitClient;
@@ -190,6 +197,9 @@ public class RolloutView extends TableView<MgmtRolloutResponseBody, Long> {
 
     private static class RolloutDetails extends FormLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
 
         private final TextArea description = new TextArea(Constants.DESCRIPTION);
@@ -283,6 +293,9 @@ public class RolloutView extends TableView<MgmtRolloutResponseBody, Long> {
 
     private static class CreateDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final TextField name;
         private final ComboBox<MgmtDistributionSet> distributionSet;
         private final ComboBox<MgmtTargetFilterQuery> targetFilter;

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/SoftwareModuleView.java

@@ -12,6 +12,7 @@ package org.eclipse.hawkbit.ui.view;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.Serial;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
@@ -69,6 +70,9 @@ import org.springframework.web.multipart.MultipartFile;
 @Slf4j
 public class SoftwareModuleView extends TableView<MgmtSoftwareModule, Long> {
 
+    @Serial
+    private static final long serialVersionUID = 1L;
+
     @Autowired
     public SoftwareModuleView(final HawkbitMgmtClient hawkbitClient) {
         this(true, hawkbitClient);
@@ -156,6 +160,9 @@ public class SoftwareModuleView extends TableView<MgmtSoftwareModule, Long> {
 
     private static class SoftwareModuleDetails extends FormLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
 
         private final TextArea description = new TextArea(Constants.DESCRIPTION);
@@ -202,6 +209,9 @@ public class SoftwareModuleView extends TableView<MgmtSoftwareModule, Long> {
 
     private static class CreateDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final Select<MgmtSoftwareModuleType> type;
         private final TextField name;
         private final TextField version;
@@ -337,6 +347,9 @@ public class SoftwareModuleView extends TableView<MgmtSoftwareModule, Long> {
 
     private static class AddArtifactsDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient Set<MgmtArtifact> artifacts = Collections.synchronizedSet(new HashSet<>());
 
         private AddArtifactsDialog(

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/TargetView.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
+import java.io.Serial;
 import java.time.ZoneOffset;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -91,7 +92,10 @@ import org.springframework.util.ObjectUtils;
 @Route(value = "targets", layout = MainLayout.class)
 @RolesAllowed({ "TARGET_READ" })
 @Uses(Icon.class)
-public class TargetView extends TableView<TargetView.TargetWithDs, String> {
+public final class TargetView extends TableView<TargetView.TargetWithDs, String> {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     public static final String STATUS = "Status";
     public static final String UPDATE = "Sync";
@@ -344,6 +348,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     protected static class TargetDetailedView extends VerticalLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final Span targetId;
         private final TargetDetails targetDetails;
         private final TargetAssignedInstalled targetAssignedInstalled;
@@ -383,6 +390,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class TargetDetails extends FormLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
         private final TextArea description = new TextArea(Constants.DESCRIPTION);
         private final TextField createdBy = Utils.textField(Constants.CREATED_BY);
@@ -444,6 +454,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class TargetAssignedInstalled extends FormLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
         private final LinkedTextArea assigned = new LinkedTextArea("Assigned Distribution Set", "/distribution_sets?");
         private final LinkedTextArea installed = new LinkedTextArea("Installed Distribution Set", "/distribution_sets?");
@@ -489,6 +502,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class TargetTags extends VerticalLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final transient HawkbitMgmtClient hawkbitClient;
         private final ComboBox<MgmtTag> tagSelector = new ComboBox<>(TAG);
         private final HorizontalLayout tagsArea = new HorizontalLayout();
@@ -601,6 +617,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class TargetMetadata extends VerticalLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         public static final String KEY = "Key";
         public static final String VALUE = "Value";
 
@@ -672,7 +691,10 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
         }
     }
 
-    public static class TargetActionsHistoryLayout extends VerticalLayout {
+    public static final class TargetActionsHistoryLayout extends VerticalLayout {
+
+        @Serial
+        private static final long serialVersionUID = 1L;
 
         private final TargetActionsHistory targetActionsHistory;
 
@@ -689,6 +711,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
         public static class ActionStepsGrid extends Grid<ActionStepsGrid.ActionStepEntry> {
 
+            @Serial
+            private static final long serialVersionUID = 1L;
+
             private final transient HawkbitMgmtClient hawkbitClient;
             private transient MgmtTarget target;
             private transient Long actionId;
@@ -775,6 +800,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class RegisterDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final Select<MgmtTargetType> type;
         private final TextField controllerId;
         private final TextField name;
@@ -850,6 +878,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class AssignDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final ComboBox<MgmtDistributionSet> distributionSet;
         private final Select<MgmtActionType> actionType;
         private final DateTimePicker forceTime = new DateTimePicker("Force Time");
@@ -918,6 +949,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class CreateTagDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final TextField name;
         private final TextArea description = new TextArea(Constants.DESCRIPTION);
 
@@ -961,6 +995,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class AddMetadataDialog extends Utils.BaseDialog<Void> {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private final TextField key;
         private final TextField value;
 
@@ -1001,6 +1038,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class TargetStatusCell extends HorizontalLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private TargetStatusCell(final MgmtTarget target) {
             final MgmtPollStatus pollStatus = target.getPollStatus();
             add(pollStatusIconMapper(pollStatus));
@@ -1024,6 +1064,9 @@ public class TargetView extends TableView<TargetView.TargetWithDs, String> {
 
     private static class TargetUpdateStatusCell extends HorizontalLayout {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         private TargetUpdateStatusCell(final MgmtTarget target) {
             final String targetUpdateStatus = Optional.ofNullable(target.getUpdateStatus()).orElse("unknown");
             add(targetUpdateStatusMapper(targetUpdateStatus));

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/util/Filter.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view.util;
 
+import java.io.Serial;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
@@ -30,7 +31,10 @@ import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
 import com.vaadin.flow.theme.lumo.LumoUtility;
 import org.springframework.util.ObjectUtils;
 
-public class Filter extends Div {
+public final class Filter extends Div {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     private transient Rsql rsql;
     private final transient Rsql secondaryRsql;

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/util/LinkedTextArea.java

@@ -9,6 +9,8 @@
  */
 package org.eclipse.hawkbit.ui.view.util;
 
+import java.io.Serial;
+
 import com.vaadin.flow.component.card.Card;
 import com.vaadin.flow.component.card.CardVariant;
 import com.vaadin.flow.component.html.Anchor;
@@ -17,27 +19,29 @@ import com.vaadin.flow.component.html.Span;
 
 public class LinkedTextArea extends Div {
 
-    String queryPrefix;
-    Card card;
+    @Serial
+    private static final long serialVersionUID = 1L;
 
-    public LinkedTextArea(String title, String queryPrefix) {
-        super();
+    private final String queryPrefix;
+    private final Card card;
+
+    public LinkedTextArea(final String title, final String queryPrefix) {
+        this.queryPrefix = queryPrefix;
         card = new Card();
         card.setTitle(title);
-        this.queryPrefix = queryPrefix;
     }
 
     public void setValueWithLink(String value, String query) {
-        var span = new Span(value);
+        final Span span = new Span(value);
         span.setWhiteSpace(WhiteSpace.PRE_WRAP);
         card.add(span);
         card.addThemeVariants(CardVariant.LUMO_ELEVATED);
         if (query != null) {
-            var a = new Anchor(queryPrefix + query, card);
-            a.addClassName("nocolor");
-            add(a);
+            final Anchor anchor = new Anchor(queryPrefix + query, card);
+            anchor.addClassName("nocolor");
+            add(anchor);
         } else {
             add(card);
         }
     }
-}
+}

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/util/SelectionGrid.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view.util;
 
+import java.io.Serial;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Objects;
@@ -24,7 +25,10 @@ import com.vaadin.flow.theme.lumo.LumoUtility;
 
 // id type shall have proper equals and hashCode - i.e. eligible hash set element
 @SuppressWarnings("java:S119") // better readability
-public class SelectionGrid<T, ID> extends Grid<T> {
+public final class SelectionGrid<T, ID> extends Grid<T> {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     private volatile String rsqlFilter;
 

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/util/TableView.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view.util;
 
+import java.io.Serial;
 import java.util.concurrent.CompletionStage;
 import java.util.function.BiFunction;
 import java.util.function.Function;
@@ -38,6 +39,9 @@ import org.eclipse.hawkbit.ui.view.Constants;
 @SuppressWarnings("java:S119") // better readability
 public class TableView<T, ID> extends Div implements Constants, BeforeEnterObserver {
 
+    @Serial
+    private static final long serialVersionUID = 1L;
+
     private static final String COLOR = "color";
     private static final String VAR_LUMO_SECONDARY_TEXT_COLOR = "var(--lumo-secondary-text-color)";
     private static final String VAR_LUMO_PRIMARY_COLOR = "var(--lumo-primary-color)";

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/view/util/Utils.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui.view.util;
 
+import java.io.Serial;
 import java.time.Duration;
 import java.time.Instant;
 import java.time.LocalDateTime;
@@ -58,17 +59,15 @@ import com.vaadin.flow.data.renderer.ComponentRenderer;
 import com.vaadin.flow.data.renderer.LocalDateTimeRenderer;
 import com.vaadin.flow.data.value.ValueChangeMode;
 import com.vaadin.flow.theme.lumo.LumoUtility;
+import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.eclipse.hawkbit.mgmt.json.model.distributionset.MgmtActionType;
 import org.eclipse.hawkbit.ui.view.Constants;
 
+@NoArgsConstructor(access = lombok.AccessLevel.PRIVATE) // prevent initialization
 @Slf4j
 public class Utils {
 
-    private Utils() {
-        // prevent initialization
-    }
-
     public static final String COMBO_NAME_ALLOWED_CHARS = "[0-9a-zA-Z-_./]";
 
     public static TextField textField(final String label) {
@@ -148,8 +147,8 @@ public class Utils {
         return layout;
     }
 
-    private static <T, ID> ConfirmDialog promptForDeleteConfirmation(Function<SelectionGrid<T, ID>, CompletionStage<Void>> removeHandler,
-            SelectionGrid<T, ID> selectionGrid) {
+    private static <T, ID> ConfirmDialog promptForDeleteConfirmation(
+            final Function<SelectionGrid<T, ID>, CompletionStage<Void>> removeHandler, final SelectionGrid<T, ID> selectionGrid) {
         final ConfirmDialog dialog = new ConfirmDialog();
         dialog.setHeader("Confirm Deletion");
         dialog.setText("Are you sure you want to delete the selected items? This action cannot be undone.");
@@ -160,9 +159,7 @@ public class Utils {
         dialog.setConfirmButtonTheme(ButtonVariant.LUMO_ERROR.getVariantName());
         dialog.setConfirmText("Delete");
         dialog.addConfirmListener(event -> {
-            removeHandler
-                    .apply(selectionGrid)
-                    .thenAccept(v -> selectionGrid.refreshGrid(false));
+            removeHandler.apply(selectionGrid).thenAccept(v -> selectionGrid.refreshGrid(false));
             dialog.close();
         });
         return dialog;
@@ -238,6 +235,9 @@ public class Utils {
 
     public static class BaseDialog<T> extends Dialog {
 
+        @Serial
+        private static final long serialVersionUID = 1L;
+
         protected final transient CompletableFuture<T> result = new CompletableFuture<>();
 
         protected BaseDialog(final String headerTitle) {