/**
     * Loads configuration parameters into a map.
     *
     * @param paramMap the parameter map
     * @param configParam the configuration parameter string
     */
    public static void loadConfigParams(final Map<String, Object> paramMap, final String configParam) {
        final Map<String, String> map = ParameterUtil.parse(configParam);
        if (!map.isEmpty()) {
            paramMap.putAll(map);
        }

        // Test with empty map and null config
        paramMap = new HashMap<>();
        ParameterUtil.loadConfigParams(paramMap, null);
        assertEquals(0, paramMap.size());

        // Test with empty map and empty config
        paramMap = new HashMap<>();
        ParameterUtil.loadConfigParams(paramMap, "");
        assertEquals(0, paramMap.size());

        // Test with empty map and whitespace config