Recursive listing of all files matching a certain filetype in Groovy

Question

I am trying to recursively list all files that match a particular file type in Groovy. This example almost does it. However, it does not list the files in the root folder. I

Answer 1

// Define closure
def result

findTxtFileClos = {

        it.eachDir(findTxtFileClos);
        it.eachFileMatch(~/.*.txt/) {file ->
                result += "${file.absolutePath}\n"
        }
    }

// Apply closure
findTxtFileClos(new File("."))

println result