@Override
    public void get(final long addr, final byte[] dst, final int off, final int len) throws IOException {
      try (FileAccessorCache.Handle<FileChannelWithSizeTracking> fileAccessor = ourFileChannelCache.get(myPath)) {
        FileChannelWithSizeTracking file = fileAccessor.get();
        file.read(addr, dst, off, len);
      }
    }
@Override
    public void get(final long addr, final byte[] dst, final int off, final int len)