code: public void initAllLoadedPlugins() throws PluginException {
  		LOGGER.debug("Initializig all loaded plugins");
  		for (Class<? extends Plugin> pluginClass : implementations.keySet()) {
  			Set<PluginContext> set = implementations.get(pluginClass);
  			for (PluginContext pluginContext : set) {
  				try {
  					pluginContext.initialize(pluginContext.getSystemSettings());
  				} catch (Throwable e) {
  					LOGGER.error("", e);
  					pluginContext.setEnabled(false, false);
  				}
  			}
  		}
  	}
docs: This method will initialize all the loaded plugins
  
  @throws PluginException