protected Path determinePom(C context) {
        Path current = context.invokerRequest.cwd();
        if (context.invokerRequest.options().alternatePomFile().isPresent()) {
            current = context.cwdResolver.apply(
                    context.invokerRequest.options().alternatePomFile().get());
        }
        if (context.modelProcessor != null) {
            return context.modelProcessor.locateExistingPom(current);

        } catch (InterpolationException e) {
            throw new IllegalArgumentException("Could not interpolate CommonsCliOptions", e);
        }
    }

    @Override
    public Optional<String> alternatePomFile() {
        if (commandLine.hasOption(CLIManager.ALTERNATE_POM_FILE)) {
            return Optional.of(commandLine.getOptionValue(CLIManager.ALTERNATE_POM_FILE));
        }
        return Optional.empty();
    }