Function StripFileUriScheme 

fn StripFileUriScheme(Input: &str) -> &str

Strip a leading file:// (or file:///) scheme from the incoming path. Cocoon sends full URIs like file:///<home>/.land/extensions/... through FileSystem.ReadFile/WriteFile/ReadDirectory; PathBuf from such a string treats the scheme literally and every read 404s. Without this the redhat.java activation (and any other extension that uses the gRPC fs.readFile path for its own package.json) fails with “Resource not found: file:///…”.