Gradle to run Java and Groovy

gistfile1.groovy

fileTree(dir: 'src/main', includes: ['**/*.java','**/*.groovy']).each {File file ->
        def path =  relativePath(file.path)
        def kind = path.split(/\./).toList().last()
        def taskName = path - "src/main/${kind}/" - ".${kind}"
        taskName = taskName.replaceAll('/','.')
        task "$taskName"(type: JavaExec, dependsOn: classes){
                   group = "Run"
                   description = "Run the $taskName program($kind)"
                   main = taskName
                   classpath sourceSets.main.output + sourceSets.main.runtimeClasspath
        }
}