public final class ManuallyCloseableZipInputStream extends ZipInputStream {
    public ManuallyCloseableZipInputStream(InputStream in) {
        super(in);
    }

    public ManuallyCloseableZipInputStream(InputStream in, Charset charset) {
        super(in, charset);
    }

    @Override
    public void close() throws IOException {
        // do nothing
    }

    public void closeManually() throws IOException {
        super.close();
    }
}