Update with HeaderAction

core/src/main/java/jenkins/views/FullHeader.java

@@ -2,6 +2,8 @@ package jenkins.views;
 
 import hudson.model.Action;
 import java.util.List;
+
+import hudson.model.RootAction;
 import jenkins.model.Jenkins;
 import org.kohsuke.accmod.Restricted;
 import org.kohsuke.accmod.restrictions.NoExternalUse;
@@ -24,11 +26,13 @@ public abstract class FullHeader extends Header {
      * @return a list of {@link Action} to show in the header, defaults to {@link hudson.model.RootAction} extensions
      */
     @Restricted(NoExternalUse.class)
-    public List<Action> getActions() {
+    public List<HeaderAction> getActions() {
         return Jenkins.get()
                 .getActions()
                 .stream()
                 .filter(e -> e.getIconFileName() != null)
+                .map(e -> (RootAction) e)
+                .map(e -> new HeaderAction(e.getDisplayName(), e.getIconFileName(), e.getUrlName(), e.getBadge()))
                 .toList();
     }
 }

core/src/main/java/jenkins/views/HeaderAction.java

@@ -0,0 +1,42 @@
+package jenkins.views;
+
+import edu.umd.cs.findbugs.annotations.NonNull;
+import jenkins.management.Badge;
+import org.jenkins.ui.icon.IconSpec;
+
+public class HeaderAction implements IconSpec {
+
+    private final @NonNull String displayName;
+
+    private final @NonNull String iconClassName;
+
+    private final String url;
+
+    private final Badge badge;
+
+    public HeaderAction(@NonNull String displayName, @NonNull String iconClassName, String url, Badge badge) {
+        this.displayName = displayName;
+        this.iconClassName = iconClassName;
+        this.url = url;
+        this.badge = badge;
+    }
+
+    @NonNull
+    public String getDisplayName() {
+        return displayName;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public Badge getBadge() {
+        return badge;
+    }
+
+    @Override
+    @NonNull
+    public String getIconClassName() {
+        return iconClassName;
+    }
+}

core/src/main/resources/jenkins/views/JenkinsHeader/headerContent.jelly

@@ -32,9 +32,9 @@
     <div class="jenkins-header__actions">
       <l:overflowButton clazz="jenkins-button--tertiary jenkins-mobile-show">
         <j:forEach var="action" items="${it.actions}">
-          <j:if test="${action.iconFileName != null}">
+          <j:if test="${action.iconClassName != null}">
             <dd:item href="${h.getActionUrl(app.url, action)}"
-                     icon="${action.iconFileName}"
+                     icon="${action.iconClassName}"
                      text="${action.displayName}" />
           </j:if>
         </j:forEach>
@@ -73,7 +73,7 @@
             <x:attribute name="data-tippy-theme">${interactive ? 'dropdown' : 'tooltip'}</x:attribute>
             <x:attribute name="draggable">false</x:attribute>
             <x:attribute name="class">jenkins-button ${isCurrent ? '' : 'jenkins-button--tertiary'}</x:attribute>
-            <l:icon src="${action.iconFileName}" />
+            <l:icon src="${action.iconClassName}" />
             <span class="jenkins-visually-hidden">${action.displayName}</span>
             <j:if test="${action.badge != null}">
               <span class="jenkins-badge jenkins-!-${action.badge.severity}-color" />