code: protected ExtensionHttpSessions getExtensionHttpSessions() {
  		if(extensionHttpSessions==null){
  			extensionHttpSessions = Control.getSingleton().getExtensionLoader().getExtension(ExtensionHttpSessions.class);
  		}
  		return extensionHttpSessions;
  		
  	}
docs: Gets the ExtensionHttpSessions, if it's enabled
  
  @return the Http Sessions extension or null, if it's not available