/*
 * Copyright 2014 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package io.netty.handler.ssl.util;

import sun.security.x509.AlgorithmId;
import sun.security.x509.CertificateAlgorithmId;
import sun.security.x509.CertificateIssuerName;
import sun.security.x509.CertificateSerialNumber;
import sun.security.x509.CertificateSubjectName;
import sun.security.x509.CertificateValidity;
import sun.security.x509.CertificateVersion;
import sun.security.x509.CertificateX509Key;
import sun.security.x509.X500Name;
import sun.security.x509.X509CertImpl;
import sun.security.x509.X509CertInfo;

import java.math.BigInteger;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.SecureRandom;

import static io.netty.handler.ssl.util.SelfSignedCertificate.*;

/**
 * Generates a self-signed certificate using {@code sun.security.x509} package provided by OpenJDK.
 */
final class OpenJdkSelfSignedCertGenerator {

    static String[] generate(String fqdn, KeyPair keypair, SecureRandom random) throws Exception {
        PrivateKey key = keypair.getPrivate();

        // Prepare the information required for generating an X.509 certificate.
        X509CertInfo info = new X509CertInfo();
        X500Name owner = new X500Name("CN=" + fqdn);
        info.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));
        info.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(new BigInteger(64, random)));
        info.set(X509CertInfo.SUBJECT, new CertificateSubjectName(owner));
        info.set(X509CertInfo.ISSUER, new CertificateIssuerName(owner));
        info.set(X509CertInfo.VALIDITY, new CertificateValidity(NOT_BEFORE, NOT_AFTER));
        info.set(X509CertInfo.KEY, new CertificateX509Key(keypair.getPublic()));
        info.set(X509CertInfo.ALGORITHM_ID,
                new CertificateAlgorithmId(new AlgorithmId(AlgorithmId.sha1WithRSAEncryption_oid)));

        // Sign the cert to identify the algorithm that's used.
        X509CertImpl cert = new X509CertImpl(info);
        cert.sign(key, "SHA1withRSA");

        // Update the algorithm and sign again.
        info.set(CertificateAlgorithmId.NAME + '.' + CertificateAlgorithmId.ALGORITHM, cert.get(X509CertImpl.SIG_ALG));
        cert = new X509CertImpl(info);
        cert.sign(key, "SHA1withRSA");
        cert.verify(keypair.getPublic());

        return newSelfSignedCertificate(fqdn, key, cert);
    }

    private OpenJdkSelfSignedCertGenerator() { }
}

@@ -1275,16 +1275,64 @@
 eRandom;
+%0Aimport java.security.cert.CertificateException;
 %0A%0Aimport
@@ -2060,24 +2060,42 @@
  random)));%0A
+        try %7B%0A    
         info
@@ -2169,72 +2169,307 @@
     
-info.set(X509CertInfo.ISSUER, new CertificateIssuerName(owner));
+%7D catch (CertificateException ignore) %7B%0A            info.set(X509CertInfo.SUBJECT, owner);%0A        %7D%0A        try %7B%0A            info.set(X509CertInfo.ISSUER, new CertificateIssuerName(owner));%0A        %7D catch (CertificateException ignore) %7B%0A            info.set(X509CertInfo.ISSUER, owner);%0A        %7D
 %0A   

Fix JDK 8 compatibility issue with OpenJdkSelfSignedCertGenerator