}
private Map<String, Set<String>> scanWebInfClasses(URL webInfClasses) {
try {
AnnotationDB db = createAnnotationDB();
db.scanArchives(webInfClasses);
return db.getAnnotationIndex();
} catch (FileNotFoundException e) {
return Collections.emptyMap();
} catch (IOException e) {
throw new ScannerException("Could not scan WEB-INF/classes", e);