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'How to create your own Grails portlet for Liferay?' post illustration
How to create your own Grails portlet for Liferay?

Portlets are pluggable user interface software components that are managed and displayed in a web portal. They produce fragments of markup code that are aggregated into a portal.
There are two specifications of portlets exist nowadays, they are JSR-168 (Java Portlet Api) and JSR-286 (Java Portlet Api 2.0).