An example regarding how to add elements to a List in Java.

how-to-add-elements-to-a-list-in-java.groovy

@Grab(group='com.jamonapi', module='jamon', version='2.82')
import com.jamonapi.Monitor
import com.jamonapi.MonitorFactory

import java.util.List
import java.util.UUID

import static java.util.Arrays.asList

def arrayCapacity = 10000

def uuids = new String[arrayCapacity + 1]

for (int ctr in 0..arrayCapacity)
    uuids[ctr] = UUID.randomUUID().toString ()

def uuidList = asList (uuids)

def iterations = 100000

def monitor = MonitorFactory.start("Convert an array to an ArrayList performance monitor via the LinkedList constructor example")

for (ctr in 0..iterations) {
  def exampleList = new LinkedList (uuidList) as java.util.List
}

monitor.stop ()

println "iterations: $iterations, performance: $monitor"

return;