docs: private Tuple<String,String> getEntry( final String    key )
      {
          Tuple<String,String>    override = getOverrideEntry( key );
  
          if ( override == null )
          {
              String    value = getPropertyValue( key );
  
              if ( value != null )
              {
                  return new Tuple<String,String>( key, value );
              }
          }
  
          return override;
      }