//created yet, so we should return null.
if( unFilteredStream != null )
{
long position = unFilteredStream.getPosition();
long length = unFilteredStream.getLength();
RandomAccessFileInputStream input =
new RandomAccessFileInputStream( file, position, length );
retval = new BufferedInputStream( input, BUFFER_SIZE );
}
else
{
// We should check if the COSStream contains data, maybe it