I've implemented simple vfs cache: | public interface VFSCache | { | /** | * Get the file. | * | * @param uri the file's uri | * @return virtual file instance | * @throws IOException for any error | */ | VirtualFile getFile(URI uri) throws IOException; | | /** | * Get the file. | * | * @param url the file's url | * @return virtual file instance | * @throws IOException for any error | */ | VirtualFile getFile(URL url) throws IOException; | | /** | * Put vfs context to cache. | * | * @param context the vfs context | */ | void putContext(VFSContext context); | | /** | * Remove vfs context from cache. | * | * @param context the vfs context | */ | void removeContext(VFSContext context); | | /** | * Start the cache. | * | * @throws Exception for any error | */ | void start() throws Exception; | | /** | * Stop the cache. | */ | void stop(); | } | As you can see it caches VFSContex. Every time VFSContext is created, it is put into cache. This creation only happens - if you use VFS API - in VFS class. When you demand VirtualFile for given URI/URL, I match VFSContex's rootURI to get the right context for URI/URL. Then it's plain navigation from VFSContext to the actual relative VirtualFile. Relative path == URI/URL path - context's path. VFSCache comes in different impls: LRU, Timed, Soft, Weak. It's all configurable over jboss.vfs.cache System property. There is also optional CacheStatistics interface, which knows how to return: - cached contexts (unfortunately not for CachePolicy based cache) - cache size - last insert I expect only a dozen contexts in this cache when running JBossAS. e.g. deployers and deploy dir should be among them View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4185753#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...