Timeout in java

timeout.java

String synchronizedHeavyMethod(Duration timeout) throws TimeoutException {
    Instant deadline = Instant.now().plus(timeout);
    while (Instant.now().isBefore(deadline)) {
        // doSomething() resutrns nullable String
        String result = doSomething();
        if (Objects.isNull(result)) {
            continue;
        }
        return result;
    }
    throw new TimeoutException("timeout");
}