Migrating from Fuse 6.2 to 7.8, Services are not accessible

Migrating from Fuse 6.2 to 7.8 and Services are not accessible/visible once application is deployed to Fuse 7.8. We have also upgraded the application to Java 8 along with the Maven 3.6.3. We are able to upgrade the application with maven and java upgraded version and even able to deploy the application bundle(Jar) however when we try to see the deployed services none are visible. Any suggestion why i am not able to see the services of the deployed application.