code: public void initialize(IConfig config)
  			throws Exception {
  
  		// Check last-modified times of resources in the overrides folders. These resources
  		// are considered to be dynamic in a production environment and we want to
  		// detect new/changed resources in these folders on startup so that we can clear
  		// caches, etc.
  		OverrideFoldersTreeWalker walker = new OverrideFoldersTreeWalker(this, config);
  		walker.walkTree();
  		cacheMgr = newCacheManager(walker.getLastModified());
  		deps = newDependencies(walker.getLastModifiedJS());
  		resourcePaths = getPathsAndAliases(getInitParams());
  
  		// Notify listeners
  		this.config = config;
  		notifyConfigListeners(1);
  	}
docs: This method does some initialization for the aggregator servlet. This method is called from platform
  dependent Aggregator implementation during its initialization.
  
  @param config
  The aggregator config
  
  @throws Exception