public void logout() {
   for (Session session : sessions.values()) {
     session.logout();
   }
   if (credentials instanceof SimpleCredentials) {
     SimpleCredentials simpleCredentials = (SimpleCredentials) credentials;
     JahiaLoginModule.removeToken(
         simpleCredentials.getUserID(), new String(simpleCredentials.getPassword()));
   }
   isLive = false;
   activeSessions.decrementAndGet();
 }
 public static void buildDefinitions(Session session) {
   log.info("started building node definitions");
   String nodeName = "";
   try {
     allNodes = new HashMap<String, VNodeDefinition>();
     Node rootNode = session.getNode("/jcr:system/jcr:nodeTypes");
     NodeIterator nodeIterator = rootNode.getNodes();
     while (nodeIterator.hasNext()) {
       Node node = nodeIterator.nextNode();
       nodeName = node.getName();
       VNodeDefinition vNodeDefinition = new VNodeDefinition(node);
       customizeDefinition(vNodeDefinition); // possibly customize this definition
       allNodes.put(nodeName, vNodeDefinition);
     }
     log.info("finished building nodes");
   } catch (RepositoryException re) {
     log.warn("Could not build node definitions, died at " + nodeName, re);
   } finally {
     if (session != null) session.logout();
   }
 }