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Hi Guys,

I Have created some custom OSGi API and Services using API and Service template on LDS. When I inject the service in OSGi liferay MVC module is working properly. But when I am trying to access it in Spring MVC portlet it is not working. As per Liferay's documentation we can use service tracker for accessing OSGi service in Spring MVC portlets. But when I try to inject Service using service tracker I am getting below exception.

java.lang.ClassCastException: class com.se.theexchange.commons.services.impl.IDMSServiceImpl cannot be cast to class com.se.theexchange.commons.services.api.IDMSService (com.se.theexchange.commons.services.impl.IDMSServiceImpl is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @7d61d943; com.se.theexchange.commons.services.api.IDMSService is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @308c744b)

Below is the code snippet:

Bundle bundle = FrameworkUtil.getBundle(this.getClass());
    BundleContext bundleContext = bundle.getBundleContext();
    ServiceTracker<IDMSService, IDMSService> serviceTracker =
        new ServiceTracker(bundleContext, IDMSService.class, null);
    
    @RenderMapping(params = "javax.portlet.action=success")
    public String showGreeting(ModelMap modelMap) throws InterruptedException{
        serviceTracker.open();
        if(!serviceTracker.isEmpty()) {
            System.out.println(":::Test Message::: "+serviceTracker.waitForService(500).testidmsService());
        }else {
            System.out.println(":::::::::service not found:::::::::");
        }
    }

I am using Liferay DXP 7.3 sp2 bundle.