public byte[] getStorage(int requestedLength) {
      if (storage.length < requestedLength) {
        Logger.getAnonymousLogger()
            .log(
                Level.FINER,
                "DexFile storage too small  " + storage.length + " vs " + requestedLength);
        storage = new byte[requestedLength];
      }
      return storage;
    }
Holder for a byte[] that can grow on demand.
android/android_framework/dex-maker/src/main/java/com/android/dx/dex/file/DexFile.java