@Override public String etag() { return asset.etag(); }
String etag = asset.etag(); boolean ifnm = req.header("If-None-Match").toOptional() .map(etag::equals)
@Override public String etag() { return asset.etag(); }
String etag = asset.etag(); boolean ifnm = req.header("If-None-Match").toOptional() .map(etag::equals)