assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("CXXX"));
        assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("XXXC"));

        int cpus = Runtime.getRuntime().availableProcessors();
        assertEquals((int) (cpus * 2.2), cli.calculateDegreeOfConcurrency("2.2C"));
        assertEquals(1, cli.calculateDegreeOfConcurrency("0.0001C"));

        // extend the command line to accept its own configuration parameters.
        //
        if (context.options().threads().isPresent()) {
            int degreeOfConcurrency =
                    calculateDegreeOfConcurrency(context.options().threads().get());
            if (degreeOfConcurrency > 1) {
                request.setBuilderId("multithreaded");
                request.setDegreeOfConcurrency(degreeOfConcurrency);

                        return null;
                    }
                })
                .filter(Objects::nonNull)
                .toList());
    }

    protected int calculateDegreeOfConcurrency(String threadConfiguration) {
        try {
            if (threadConfiguration.endsWith("C")) {
                String str = threadConfiguration.substring(0, threadConfiguration.length() - 1);