Objects.requireNonNull(cmd, "cmd");
        if (cmd.length == 0) throw new IllegalArgumentException("cmd must not be empty");
        ProcessBuilder pb = new ProcessBuilder(cmd);
        Process p = pb.start();
        Future<String> outFuture = readStreamAsync(p.getInputStream());
        Future<String> errFuture = readStreamAsync(p.getErrorStream());

        ProcessBuilder processBuilder =
                new ProcessBuilder(path, "-cp", classpath, CIDetectorHelperRunner.class.getName());
        processBuilder.environment().putAll(add);
        ALL.stream()
                .filter(s -> !add.containsKey(s))
                .forEach(k -> processBuilder.environment().remove(k));
        Process process = processBuilder.start();
        process.waitFor();

        Objects.requireNonNull(cmd, "cmd");
        if (cmd.length == 0) throw new IllegalArgumentException("cmd must not be empty");
        ProcessBuilder pb = new ProcessBuilder(cmd);
        Process p = pb.start();
        String out = readFully(p.getInputStream());
        String err = readFully(p.getErrorStream());
        int code = p.waitFor();

        Objects.requireNonNull(command, "command");
        if (command.length == 0) {
            throw new IllegalArgumentException("command must not be empty");
        }

        ProcessBuilder pb = new ProcessBuilder(command);
        Process process = pb.start();

        Future<String> stdoutFuture = readStreamAsync(process.getInputStream());