title: Recursive listing of all files matching a certain filetype in Groovy
body: <p>I am trying to recursively list all files that match a particular file type in Groovy. <a href="http://groovy-almanac.org/list-files-recursivly/">This example</a> almost does it. However, it does not list the files in the root folder. Is there a way to modify this to list files in the root folder? Or, is there a different way to do it?</p>