[jsr-314-open] Slashes in resource library names?

I have been trying to understand whether the spec allows slashes in resource library names. For example, is it within the spec to have a composite component with library name components/util? It works fine in Mojarra: Place components into resources/components/util and use a namespace alias xmlns:util="http://java.sun.com/jsf/composite/components/util But there is a catch--it won't locate a backing component in the components.util package. And per the API docs for Application#createComponent, I have no right to expect that: "Create a fully qualified Java class name by removing any file extension from resource-name and let fqcn be library-name + "." + resource-name". So, I tried to read the spec for clarification. 3.6.1.4 states: The occurrence of the string “http://java.sun.com/jsf/composite/” in a Facelet XML namespace declaration means that *whatever follows that last “/”* is taken to be the name of a resource library. "Whatever follows" is pretty clear. In my example, components/util would be the library name. But is it a legal library name? 2.6.1.3 states "Every character in a resource identifier must be a valid character suitable for use in a string passed to the constructor of java.io.File that takes a single String argument." I don't understand this statement. In Windows, can you make files containing / symbols? If so, will slashes be treated as directory separators? What about colons? Will they be drive letters? Or are we saying it doesn't matter--we just feed the library name into the File constructor, and whatever happens, happens? Then you could have a situation where a WAR file works fine on Linux but not on Windows. Before I file an issue, could one of you tell me whether you intended to support hierarchical library names (such as components/util), or whether you envisioned only one level? Thanks, Cay -- Cay S. Horstmann | http://horstmann.com | mailto:cay@horstmann.com