Plugins You can find out about all the publicly available Grails plugins.

Incorporates GWT into Grails. In particular, GWT host pages can be GSPs and standard Grails services can be used to handle client RPC requests. Read more

Dependency :
compile "org.grails.plugins:gwt:1.0.3"

Provides SmartGWT integration (install smartgwt, dependency to GWT...) Read more

Dependency :
compile "org.grails.plugins:smartgwt:0.2"