Print classpath in Groovy for debugging

printClasspath.groovy

def printClassPath(classLoader) {
  println "=== ${classLoader} ==="
  if (classLoader instanceof java.net.URLClassLoader) {
    classLoader.getURLs().each {url->
      println "- ${url.toString()}"
    }
  }
  if (classLoader.parent) {
    printClassPath(classLoader.parent)
  }
}