modeshape-web-jcr-webdav: DefaultContentMapper.getResourceLength does not close InputStream

    public long getResourceLength(Node node) 
           throws RepositoryException, IOException {
        InputStream is = null;
        long size = 0;
        int bytesRead;
        byte[] buff = new byte[255];
        try {
            is = getResourceContent(node);
            while (-1 != (bytesRead = is.read(buff, 0, 255))) {
                size += bytesRead;
            }
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return size;
    }