code: public long getLong(String key, long defaultValue) {
  		Object o = getRawValue(key);
  		if (o == null) {
  			return defaultValue;
  		}
  
  		return convertToLong(o, defaultValue);
  	}
docs: Returns the value associated with the given key as a long.
  
  @param key
  the key pointing to the associated value
  @param defaultValue
  the default value which is returned in case there is no value associated with the given key
  @return the (default) value associated with the given key