in src/main/java/org/apache/sling/feature/apiregions/impl/ResolverHookImpl.java [306:315]
Set<String> getFeaturesForBundle(Bundle bundle) {
// Look up the bsn and bundle version initially associated with the location. If the bundle
// for the specified location was later updated, the initial bsn+version is still used to look up the
// api regions configuration
Map.Entry<String, Version> bsnVer = this.configuration.getBundleLocationConfigMap()
.computeIfAbsent(bundle.getLocation(), l -> new AbstractMap.SimpleEntry<>(
bundle.getSymbolicName(), bundle.getVersion()));
return getFeaturesForBundleFromConfig(bsnVer.getKey(), bsnVer.getValue());
}