Property change of the UI service updates the properties of the Portlet

In response to property change the properties

liferay-integration/src/main/java/com/vaadin/osgi/liferay/PortletUIServiceTrackerCustomizer.java

@@ -182,6 +182,20 @@ class PortletUIServiceTrackerCustomizer
     @Override
     public void modifiedService(ServiceReference<UI> serviceReference,
             ServiceObjects<UI> ui) {
+        /*
+         * This service has been registered as a portlet at some point,
+         * otherwise it wouldn't be tracked.
+         * 
+         * This handles changes for Portlet related properties that are part of
+         * the UI service to be passed to the Portlet service registration.
+         */
+        Dictionary<String, Object> newProperties = createPortletProperties(
+                serviceReference);
+        ServiceRegistration<Portlet> registration = portletRegistrations
+                .get(serviceReference);
+        if (registration != null) {
+            registration.setProperties(newProperties);
+        }
     }
 
     @Override