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/*

 * @test

 * @bug 8172244

 * @summary Verify that no exception is thrown with empty cert chain

 *    in MSCAPI.

 * @requires os.family == "windows"

 * @modules java.base/sun.security.tools.keytool java.base/sun.security.x509

 * @run main/othervm --add-opens java.base/java.security=ALL-UNNAMED

 *      KeyStoreEmptyCertChain

 */

import java.security.KeyStore;

import java.security.cert.Certificate;

import sun.security.x509.X500Name;

import sun.security.tools.keytool.CertAndKeyGen;

import java.security.KeyPairGenerator;

import java.security.KeyPair;

import java.security.PrivateKey;

import java.security.KeyStoreSpi;

import java.lang.reflect.*;

public class KeyStoreEmptyCertChain {

    public static void main(String[] args) {

        try {

            KeyStore keyStore = KeyStore.getInstance("Windows-MY", "SunMSCAPI");

            keyStore.load(null, null);

            // Generate a certificate to use for testing

            CertAndKeyGen gen = new CertAndKeyGen("RSA", "SHA256withRSA");

            gen.generate(2048);

            Certificate cert =

                gen.getSelfCertificate(new X500Name("CN=test"), 3600);

            String alias = "JDK-8172244";

            char[] password = "password".toCharArray();

            KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");

            // generate a private key for the certificate

            kpg.initialize(2048);

            KeyPair keyPair = kpg.generateKeyPair();

            PrivateKey privKey = keyPair.getPrivate();

            // need to bypass checks to store the private key without the cert

            Field spiField = KeyStore.class.getDeclaredField("keyStoreSpi");

            spiField.setAccessible(true);

            KeyStoreSpi spi = (KeyStoreSpi) spiField.get(keyStore);

            spi.engineSetKeyEntry(alias, privKey, password, new Certificate[0]);

            keyStore.store(null, null);

            keyStore.getCertificateAlias(cert);

            keyStore.deleteEntry(alias);

            // test passes if no exception is thrown

        } catch (Exception ex) {

            throw new RuntimeException(ex);

        }

    }

}