Comparing the JSR 168 Java Portlet Specification With the IBM Portlet API
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Overview: With the emergence of increasing number of enterprise portals, a variety of APIs for portal components have been created. The Java Portlet Specification, JSR 168, which is being defined by the Java Community Process, provides a standard for interoperability between portlets and portals. This paper details similarities and differences between the Java Standardization Request for the Java Portlet Specification and the IBM Portlet API supported by IBM WebSphere Portal Version 5.0. It explains the concepts and features of JSR 168, compares them to the IBM Portlet API, and provides an example portlet of each of the two portlet programming interfaces.