TryVirtualThread.groovy

import java.time.*
import java.util.concurrent.*
import java.util.concurrent.atomic.*

def atomicInteger = new AtomicInteger()
def runnable = () -> {
  atomicInteger.incrementAndGet()
}

def start = Instant.now()
try (def executor = Executors.newVirtualThreadPerTaskExecutor()) {
  for(int i = 0; i < 1_000_000; i++) {
    executor.submit(runnable)
  }
}
def finish = Instant.now()
def timeElapsed = Duration.between(start, finish).toMillis()
println "Result: ${atomicInteger}. Total elapsed time: ${timeElapsed}"