code: public String getProperty(String key) 
    {
      if (key.startsWith(OutputPropertiesFactory.S_BUILTIN_OLD_EXTENSIONS_UNIVERSAL))
        key = OutputPropertiesFactory.S_BUILTIN_EXTENSIONS_UNIVERSAL 
          + key.substring(OutputPropertiesFactory.S_BUILTIN_OLD_EXTENSIONS_UNIVERSAL_LEN);
      return m_properties.getProperty(key);
    }
docs: Searches for the property with the specified key in the property list.
  If the key is not found in this property list, the default property list,
  and its defaults, recursively, are then checked. The method returns
  <code>null</code> if the property is not found.
  
  @param   key   the property key.
  @return  the value in this property list with the specified key value.