* @param name the property name
     * @param defaultValue the default value to use if property doesn't exist
     * @param appendValue the value to append to the property value
     */
    protected void addSystemProperty(final List<String> cmdList, final String name, final String defaultValue, final String appendValue) {
        final String value = System.getProperty(name);
        if (value != null) {

        }

        // Expose protected methods for testing
        public void testAddSystemProperty(List<String> cmdList, String name, String defaultValue, String appendValue) {
            super.addSystemProperty(cmdList, name, defaultValue, appendValue);
        }

        public void testAddFessConfigProperties(List<String> cmdList) {
            super.addFessConfigProperties(cmdList);
        }