8211049: Second parameter of "initialize" method is not used

Use the specified random object instead of system default

Reviewed-by: weijun

src/java.base/share/classes/sun/security/rsa/RSAKeyPairGenerator.java

@@ -70,7 +70,7 @@ public abstract class RSAKeyPairGenerator extends KeyPairGeneratorSpi {
     public void initialize(int keySize, SecureRandom random) {
         try {
             initialize(new RSAKeyGenParameterSpec(keySize,
-                    RSAKeyGenParameterSpec.F4), null);
+                    RSAKeyGenParameterSpec.F4), random);
         } catch (InvalidAlgorithmParameterException iape) {
             throw new InvalidParameterException(iape.getMessage());
         }

test/jdk/sun/security/rsa/TestKeyPairGeneratorInit.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug     8211049
+ * @summary make sure the supplied SecureRandom object is used
+ */
+
+import java.security.*;
+import java.security.interfaces.*;
+
+public class TestKeyPairGeneratorInit {
+
+    private static class MySecureRandom extends SecureRandom {
+        boolean isUsed = false;
+        public MySecureRandom() {
+            super();
+        }
+
+        public void nextBytes(byte[] bytes) {
+            isUsed = true;
+            super.nextBytes(bytes);
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        KeyPairGenerator kpg =
+            KeyPairGenerator.getInstance("RSA", "SunRsaSign");
+        MySecureRandom rnd = new MySecureRandom();
+        kpg.initialize(2048, rnd);
+        System.out.println("Generate keypair then check");
+        KeyPair kp = kpg.generateKeyPair();
+        if (!rnd.isUsed) {
+            throw new RuntimeException("ERROR: Supplied random not used");
+        } else {
+            System.out.println("=> Test passed");
+        }
+    }
+}