docs: @Override
      public void propertyChange( final PropertyChangeEvent event ) {
  
          // Validate the source of this event
          if ( !( event.getSource() instanceof Context ) ) {
              return;
          }
  
          // Process a relevant property change
          if ( event.getPropertyName().equals( "sessionTimeout" ) ) {
              try {
                  setMaxInactiveInterval( ( (Integer) event.getNewValue() ).intValue() * 60 );
              } catch ( final NumberFormatException e ) {
                  _log.warn( "standardManager.sessionTimeout: " + event.getNewValue().toString() );
              }
          }
  
      }