@Override
    public void mark(final int readlimit) {
        try {
            initWrapper().mark(readlimit);
        } catch (final IOException e) {
            throw new UncheckedIOException(e);
        }
    }
Lazy initializes from an {@link InputStream} wrapper.
httpclient5/src/main/java/org/apache/hc/client5/http/entity/LazyDecompressingInputStream.java