Converting the WorldClock portlet from the IBM Portlet API to the JSR 168 portlet API

Converting the WorldClock portlet from the IBM Portlet API to the JSR 168 portlet API
This article shows how to convert a portlet that was originally developed for the IBM® WebSphere® Portal proprietary Portlet API to one using the JSR 168 standard portlet API. It describes the main issues in performing such a portlet conversion. If you need to convert a portlet from the IBM Portlet API to the JSR 168 API, this article serves as a good model for your doing so.