static long getSize(final ArchiveEntry archiveEntry) {
        final long size = archiveEntry.getSize();
        return size != ArchiveEntry.SIZE_UNKNOWN
                ? size
                : 0;
    }
@return The uncompressed size of the entry
stroom-proxy/stroom-proxy-app/src/main/java/stroom/proxy/app/handler/ZipReceiver.java