Java - Structured Concurrency in JDK 21

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As a part of loom project, JDK21 will support the structured concurrency to handle multiple concurrent tasks in a structured way.

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Response handle() throws ExecutionException, InterruptedException {
  try (var scope = StructuredTaskScope.ShutdownOnFailure()) {
    Future<String> user = scope.fork(() -> findUser());
    Future<String> fetchOrder = scope.fork(() -> fetchOrder());

    scope.join();
    scope.throwIfFailed()

    return Response(user.resultNow(), fetchOrder.resultNow());
  }
}

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