code: public void stop() {
          Plugin plugin = getPlugin();
          if (plugin != null) {
              try {
                  LOGGER.log(Level.FINE, "Stopping {0}", shortName);
                  plugin.stop();
              } catch (Throwable t) {
                  LOGGER.log(WARNING, "Failed to shut down " + shortName, t);
              }
          } else {
              LOGGER.log(Level.FINE, "Could not find Plugin instance to stop for {0}", shortName);
          }
          // Work around a bug in commons-logging.
          // See http://www.szegedi.org/articles/memleak.html
          LogFactory.release(classLoader);
      }
docs: Terminates the plugin.