You could also write a simple Tag for your JSPs that you write your Groovy inside of... that Tag Body is taken and run through the Groovy evaluations to return what you expect.

There are other things that have come across GSPs (which the standalone is 4 years old now, since it's been merged with Grails), Grapplet -- a way to do <script src="text/Groovy"> like things, and Groovy Templates which isn't exactly what you're wanting, and Groovlets.

Are you just wanting to write Groovy inside of scriptlet tags like <%= false ?: "was false" %> or more along the lines of GvTags, or like freemarker?

thx

timo