Write a tar file of unknown (large) size in Java

I want to write a large stream of unknown size with a tar file in Java I know Apache has handles tar files, but they asked me to know the size in advance Consider Apache's own example:

TarArchiveEntry entry = new TarArchiveEntry(name);
entry.setSize(size);
Taroutput.putArchiveEntry(entry);
Taroutput.write(contentOfEntry);
Taroutput.closeArchiveEntry();

After writing, I will know the size of this item, but I haven't done it before Is there a way that I can write the content when I finish the size and then write the title?

Solution

I ended jtar and modified it, so you don't have to specify the size until you write There seems to be no package to do this. Originally... I set up a @ L_ 301_ 5 @ request this change Unfortunately, it requires a lot of ugly code and creates my own randomaccessfileinputstream (), which is not suitable for uploading patches