Java 21

try (var executor = java.util.concurrent.Executors.newVirtualThreadPerTaskExecutor()) {
  for (int i = 0; i < 1000; i++) {
    executor.submit(() -> blockingCall());
  }
}

java.util.SequencedCollection<String> names = new java.util.ArrayList<>();
names.addFirst("first");
names.addLast("last");
System.out.println(names.reversed());

record Point(int x, int y) {}

static String render(Object value) {
  return switch (value) {
    case Point(int x, int y) -> x + "," + y;
    case null -> "null";
    default -> "other";
  };
}