private final Set<String> packagesSeenBefore = new HashSet<>();
        private final Set<File> canonicalPackageInfos = new HashSet<>();

        @Override
        public boolean isSatisfiedBy(File file) {
            try {
                if (file.getName().equals("package-info.java")) {
                    if (canonicalPackageInfos.contains(file.getAbsoluteFile())) {