protected Resource resolveRootDirResource(Resource original) throws IOException {
        return original;
    }
Resolve the specified resource for path matching.
<p>By default, Equinox OSGi "bundleresource:" / "bundleentry:" URL will be
resolved into a standard jar file URL that be traversed using Spring's
standard jar file traversal algorithm. For any preceding custom resolution,
override this method and replace the resource handle accordingly.

@param original the resource to resolve
@return the resolved resource (may be identical to the passed-in resource)
@throws IOException in case of resolution failure
analyzer/src/main/java/nl/basjes/parse/useragent/utils/springframework/core/io/support/PathMatchingResourcePatternResolver.java