Because in CliClient.resume() we don't account for the case, when there is an exception in one of the async processing stages:

void resume() {
	...
	try {
		client.startAsync(state -> {
			printer.ifPresent(p -> p.print(state));
			if (!options.shouldSeedAfterDownloaded() && state.getPiecesRemaining() == 0) {
				runtime.shutdown();
			}
		}, 1000); // <-- CompletableFuture.w

I discovered that verifying hashes with -c is much slower than generating them.

I was using this command:

rhash -c --skip-ok download.sfv

iotop reported disk read speeds of 30 MB/sec and rhash was consuming 100% CPU.

Then I thought, how does rhash know that the SFV file contains MD5 hashes? It probably doesn't, and it runs all checksum algorithms when doing a check and see

Hello. And thank you for your time spent on this program.

I'd like to have an option "Close to system tray", not only "Minimize to system tray". And nice option to minimize with ESC key - ESC pressed and DZA minimized to system tray.

will look forward.

Now I use a SQL to cleanup torrents belongs to nobody.

DELETE
FROM torrents
WHERE id NOT IN (
  SELECT torrent_id
  FROM user_torrents
)

This should be done automatically.