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IBM Rational Application Developer V6 Portlet Application Development and Portal Tools by Ryan Wilson, Gianfranco Rutigliano, George Kroner, Belen Gonzalez, Karla Galvan, Cristiano Cesario, Juan R. Rodriguez

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8.1. JSR overview

JSR 168 is a specification from the Java Community Process for the standardization of portlets. The specification was developed to provide interoperability for running portlets on any vendor's implementation of the JSR 168 portlet container. The specification was approved in October of 2003. For more information about the Java Portlet Specification, see the JSR 168 specification:

http://developers.sun.com/prodtech/portalserver/reference/techart/jsr168/

WebSphere Portal starting with version 5.0.2.1 provides a runtime environment for both the IBM Portlet API, which is based on org.apache.jetspeed.portlet interfaces and JSR 168 compliant portlets.

The basic concepts are similar between the two APIs; however, several differences ...

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