Cleanup/fix jackson 2 -> 3 migration (#3024)

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

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

@@ -109,7 +109,7 @@ public class MainLayout extends AppLayout {
         final HorizontalLayout layout = new HorizontalLayout();
         layout.setPadding(true);
         layout.setJustifyContentMode(FlexComponent.JustifyContentMode.CENTER);
-        final Image icon = new Image("images/header_icon.png", "hawkBit icon");
+        final Image icon = new Image("images/hawkbit.png", "hawkBit icon");
         icon.setMaxHeight(24, Unit.PIXELS);
         icon.setMaxWidth(24, Unit.PIXELS);
         appName.addClassNames(LumoUtility.AlignItems.BASELINE, LumoUtility.FontSize.LARGE, LumoUtility.Margin.NONE);
@@ -141,9 +141,9 @@ public class MainLayout extends AppLayout {
         if (accessChecker.hasAccess(ConfigView.class)) {
             nav.addItem(new SideNavItem("Config", ConfigView.class, VaadinIcon.COG.create()));
         }
-//        if (accessChecker.hasAccess(AboutView.class)) {
-//            nav.addItem(new SideNavItem("About", AboutView.class, VaadinIcon.INFO_CIRCLE.create()));
-//        }
+        if (accessChecker.hasAccess(AboutView.class)) {
+            nav.addItem(new SideNavItem("About", AboutView.class, VaadinIcon.INFO_CIRCLE.create()));
+        }
         defaultView = DEFAULT_VIEW_PRIORITY.stream().filter(accessChecker::hasAccess).findFirst().orElse(null);
         return nav;
     }

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

@@ -34,7 +34,7 @@ public final class AboutView extends VerticalLayout {
     public AboutView() {
         setSpacing(false);
 
-        final Image img = new Image("images/about_image.png", "hawkBit");
+        final Image img = new Image("images/hawkbit_logo.png", "hawkBit");
         img.setWidth("200px");
         add(img);
 

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

@@ -9,7 +9,6 @@
  */
 package org.eclipse.hawkbit.ui.view;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.vaadin.flow.component.Component;
 import com.vaadin.flow.component.Key;
 import com.vaadin.flow.component.Unit;
@@ -49,6 +48,7 @@ import org.eclipse.hawkbit.ui.view.util.Filter;
 import org.eclipse.hawkbit.ui.view.util.SelectionGrid;
 import org.eclipse.hawkbit.ui.view.util.TableView;
 import org.eclipse.hawkbit.ui.view.util.Utils;
+import tools.jackson.databind.ObjectMapper;
 
 import java.io.Serial;
 import java.util.List;
@@ -374,7 +374,7 @@ public class TargetFilterQueryView extends TableView<TargetFilterQueryView.Targe
         }
     }
 
-    // todo change /targetfilters api to reduce api calls ?
+    // TODO - change /targetfilters api to reduce api calls ?
     @Getter
     public static class TargetFilterQueryGridItem extends MgmtTargetFilterQuery {
 
@@ -383,10 +383,10 @@ public class TargetFilterQueryView extends TableView<TargetFilterQueryView.Targe
         }
 
         private Optional<MgmtDistributionSet> ds;
-        static ObjectMapper objectMapper = new ObjectMapper();
+        private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
 
         public static TargetFilterQueryGridItem from(final HawkbitMgmtClient hawkbitClient, MgmtTargetFilterQuery filter) {
-            TargetFilterQueryGridItem filterGridItem = objectMapper.convertValue(filter, TargetFilterQueryGridItem.class);
+            TargetFilterQueryGridItem filterGridItem = OBJECT_MAPPER.convertValue(filter, TargetFilterQueryGridItem.class);
 
             if (filterGridItem.getAutoAssignDistributionSet() != null) {
                 filterGridItem.ds = Optional.ofNullable(

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

@@ -28,7 +28,6 @@ import java.util.stream.Stream;
 
 import jakarta.annotation.security.RolesAllowed;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.vaadin.flow.component.AttachEvent;
 import com.vaadin.flow.component.ClickEvent;
 import com.vaadin.flow.component.Component;
@@ -86,6 +85,7 @@ import org.eclipse.hawkbit.ui.view.util.TableView;
 import org.eclipse.hawkbit.ui.view.util.Utils;
 import org.springframework.http.ResponseEntity;
 import org.springframework.util.ObjectUtils;
+import tools.jackson.databind.ObjectMapper;
 
 @PageTitle("Targets")
 @Route(value = "targets", layout = MainLayout.class)