ConcurrentModificationException while multiple loading request of different...

Kai Reinhard

06.50.2019 de2f2ca49cce4f4bf8fd0b86004bc29a9029db92

 borgbutler-core/src/main/java/de/micromata/borgbutler/cache/ArchiveFilelistCache.java

@@ -53,7 +53,9 @@
            log.info("Saving archive content as file list: " + file.getAbsolutePath());
            try (ObjectOutputStream outputStream = new ObjectOutputStream(new BufferedOutputStream(new GzipCompressorOutputStream(new FileOutputStream(file))))) {
                outputStream.writeObject(filesystemItems.size());
                for (BorgFilesystemItem item : filesystemItems) {
                Iterator<BorgFilesystemItem> it = filesystemItems.iterator();
                while(it.hasNext()) {
                    BorgFilesystemItem item = it.next();
                    outputStream.writeObject(item);
                }
                outputStream.writeObject("EOF");
@@ -118,13 +120,13 @@
            return null;
        }
        log.info("Loading archive content as file list from: " + file.getAbsolutePath());
        List<BorgFilesystemItem> list = null;
        try {
            // Set last modified time of file:
            Files.setAttribute(file.toPath(), "lastModifiedTime", FileTime.fromMillis(System.currentTimeMillis()));
        } catch (IOException ex) {
            log.error("Can't set lastModifiedTime on file '" + file.getAbsolutePath() + "'. Pruning old cache files may not work.");
        }
        List<BorgFilesystemItem> list =  new ArrayList<>();
        try (ObjectInputStream inputStream = new ObjectInputStream(new BufferedInputStream(new GzipCompressorInputStream(new FileInputStream(file))))) {
            Object obj = inputStream.readObject();
            if (!(obj instanceof Integer)) {
@@ -132,7 +134,6 @@
                return null;
            }
            int size = (Integer) obj;
            list = new ArrayList<>();
            int fileNumber = -1;
            for (int i = 0; i < size; i++) {
                ++fileNumber;