CancelVT.java

package pw.dasbrain.test.loom;

import java.util.concurrent.ForkJoinPool;

public class CancelVT {
	public static void main(String[] args) {
		Runnable r = () -> {
			try {
				System.out.println("Running");
				Thread.sleep(500);
			} catch (InterruptedException e) {
				System.out.println("Interrupted");
			} finally {
				System.out.println("Finally");
			}
		};
		try (var pool = new ForkJoinPool()) {
			Thread.builder().virtual(pool).task(r).start();
			// Assume more virtual threads are started in that pool, one completes after 250ms.
			Thread.sleep(250);
			System.out.println("shutdown pool");
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		System.out.println("done");
	}
}

output.txt

Running
shutdown pool
done