code: private static boolean configurationBoolean(Properties properties, String key, boolean defaultValue)
     {
        if (properties != null)
        {
           if (properties.containsKey(key))
              return Boolean.valueOf(properties.getProperty(key));
        }
  
        return defaultValue;
     }
docs: Get configuration boolean
  @param properties The properties
  @param key The key
  @param defaultValue The default value
  @return The value