Weblogic: Grails index.gsp not found

If you try to deploy a Grails application to Weblogic and try to go to “/” in the app you will get the message: “/index.gsp” not found.

This definitely affects Weblogic 9. and 10.x. I am unsure if it is a problem with later versions. The fix is a simple addition to the UrlMappings.groovy file. Add the line:

"/index.gsp"(view:"/index")

So that it looks like this:

class UrlMappings {
	static mappings = {
		"/$controller/$action?/$id?"{
			constraints {
				// apply constraints here
			}
		}

		"/"(view:"/index")
		"500"(view:'/error')
		"/index.gsp"(view:"/index")
	}
}

See: GRAILS-8767