JSR 168 portlets can access portlet services in WebSphere Portal version 5.1. Your portlet service will need to be rewritten to work with JSR 168. You can, however, write the portlet so that you can still use it with IBM portlets. The service provider interfaces from org.apache.jetspeed.portlet.service.spi are still supported to provide IBM portlets access to services.
You will have to create a new portlet service interface extending com.ibm.portal.portlet.service.PortletService.
package example.portletservice; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import com.ibm.portal.portlet.service.PortletService; public interface MyJSRPortletService extends ...