private static URL parseHostString(String value) {
        try {
            return new URL(value);
        } catch (MalformedURLException exc) {
            throw new DependencyResolverException("Expected a valid URL for "
                    + EnvironmentVariable.SMITHY_PROXY_HOST + ". Found " + value);
        }
    }
@param cacheLocation Maven local cache location.
smithy-cli/src/main/java/software/amazon/smithy/cli/dependencies/MavenDependencyResolver.java