Can't whitelist blocking lambda in Mono.fromRunnable about blockhound HOT 1 CLOSED

public class LambdaTest {

    static {
        BlockHound.install(b -> {
            b.allowBlockingCallsInside(LambdaTest.class.getName(), "lambda$shouldWhitelistLambdas$1");
        });
    }
    
    @Test
    public void shouldWhitelistLambdas() {
        Mono.fromCallable(() -> {
            Thread.sleep(0);
            return "";
        }).subscribeOn(Schedulers.parallel()).block();
    }
}