public static boolean hasKnownUncompressedSize(final ArchiveEntry archiveEntry) {
        if (archiveEntry == null) {
            return false;
        } else {
            return archiveEntry.getSize() != ArchiveEntry.SIZE_UNKNOWN;
        }
    }
@return True if the uncompressed size of the entry is known.
stroom-util/src/main/java/stroom/util/zip/ZipUtil.java