--- a/src/share/classes/com/sun/crypto/provider/TlsRsaPremasterSecretGenerator.java	Tue Aug 18 14:43:04 2015 +0300
+++ b/src/share/classes/com/sun/crypto/provider/TlsRsaPremasterSecretGenerator.java	Mon Aug 31 13:30:33 2015 -0700
@@ -74,14 +74,11 @@
                 "TlsRsaPremasterSecretGenerator must be initialized");
         }
 
-        byte[] b = spec.getEncodedSecret();
-        if (b == null) {
-            if (random == null) {
-                random = new SecureRandom();
-            }
-            b = new byte[48];
-            random.nextBytes(b);
+        if (random == null) {
+            random = new SecureRandom();
         }
+        byte[] b = new byte[48];
+        random.nextBytes(b);
         b[0] = (byte)spec.getMajorVersion();
         b[1] = (byte)spec.getMinorVersion();
 

--- a/src/share/classes/sun/security/internal/spec/TlsRsaPremasterSecretParameterSpec.java	Tue Aug 18 14:43:04 2015 +0300
+++ b/src/share/classes/sun/security/internal/spec/TlsRsaPremasterSecretParameterSpec.java	Mon Aug 31 13:30:33 2015 -0700
@@ -43,8 +43,6 @@
 public class TlsRsaPremasterSecretParameterSpec
         implements AlgorithmParameterSpec {
 
-    private final byte[] encodedSecret;
-
     /*
      * The TLS spec says that the version in the RSA premaster secret must
      * be the maximum version supported by the client (i.e. the version it
@@ -91,33 +89,6 @@
 
         this.clientVersion = checkVersion(clientVersion);
         this.serverVersion = checkVersion(serverVersion);
-        this.encodedSecret = null;
-    }
-
-    /**
-     * Constructs a new TlsRsaPremasterSecretParameterSpec.
-     *
-     * @param clientVersion the version of the TLS protocol by which the
-     *        client wishes to communicate during this session
-     * @param serverVersion the negotiated version of the TLS protocol which
-     *        contains the lower of that suggested by the client in the client
-     *        hello and the highest supported by the server.
-     * @param encodedSecret the encoded secret key
-     *
-     * @throws IllegalArgumentException if clientVersion or serverVersion are
-     *   negative or larger than (2^16 - 1) or if encodedSecret is not
-     *   exactly 48 bytes
-     */
-    public TlsRsaPremasterSecretParameterSpec(
-            int clientVersion, int serverVersion, byte[] encodedSecret) {
-
-        this.clientVersion = checkVersion(clientVersion);
-        this.serverVersion = checkVersion(serverVersion);
-        if (encodedSecret == null || encodedSecret.length != 48) {
-            throw new IllegalArgumentException(
-                        "Encoded secret is not exactly 48 bytes");
-        }
-        this.encodedSecret = encodedSecret.clone();
     }
 
     /**
@@ -176,13 +147,4 @@
         }
         return version;
     }
-
-    /**
-     * Returns the encoded secret.
-     *
-     * @return the encoded secret, may be null if no encoded secret.
-     */
-    public byte[] getEncodedSecret() {
-        return encodedSecret == null ? null : encodedSecret.clone();
-    }
 }

--- a/src/share/classes/sun/security/ssl/RSAClientKeyExchange.java	Tue Aug 18 14:43:04 2015 +0300
+++ b/src/share/classes/sun/security/ssl/RSAClientKeyExchange.java	Mon Aug 31 13:30:33 2015 -0700
@@ -111,41 +111,14 @@
             }
         }
 
-        boolean needFailover = false;
-        byte[] encoded = null;
         try {
             Cipher cipher = JsseJce.getCipher(JsseJce.CIPHER_RSA_PKCS1);
-            needFailover = !KeyUtil.isOracleJCEProvider(
-                                        cipher.getProvider().getName());
-            if (needFailover) {
-                cipher.init(Cipher.DECRYPT_MODE, privateKey);
-                encoded = cipher.doFinal(encrypted);
-                encoded = KeyUtil.checkTlsPreMasterSecretKey(
-                                maxVersion.v, currentVersion.v,
-                                generator, encoded, false);
-                preMaster = generatePreMasterSecret(
-                                maxVersion.v, currentVersion.v,
-                                encoded, generator);
-            } else {
-                cipher.init(Cipher.UNWRAP_MODE, privateKey,
-                        new TlsRsaPremasterSecretParameterSpec(
-                                maxVersion.v, currentVersion.v),
-                        generator);
-                preMaster = (SecretKey)cipher.unwrap(encrypted,
-                        "TlsRsaPremasterSecret", Cipher.SECRET_KEY);
-            }
-        } catch (BadPaddingException bpe) {
-            if (needFailover) {
-                encoded = KeyUtil.checkTlsPreMasterSecretKey(
-                                maxVersion.v, currentVersion.v,
-                                generator, null, false);
-                preMaster = generatePreMasterSecret(
-                                maxVersion.v, currentVersion.v,
-                                encoded, generator);
-            } else {
-                //  Otherwise, unlikely to happen
-                throw new RuntimeException("Unexpected exception", bpe);
-            }
+            cipher.init(Cipher.UNWRAP_MODE, privateKey,
+                    new TlsRsaPremasterSecretParameterSpec(
+                            maxVersion.v, currentVersion.v),
+                    generator);
+            preMaster = (SecretKey)cipher.unwrap(encrypted,
+                                "TlsRsaPremasterSecret", Cipher.SECRET_KEY);
         } catch (InvalidKeyException ibk) {
             // the message is too big to process with RSA
             throw new SSLProtocolException(
@@ -160,35 +133,6 @@
         }
     }
 
-    // generate a premaster secret with the specified version number
-    @SuppressWarnings("deprecation")
-    private static SecretKey generatePreMasterSecret(
-            int clientVersion, int serverVersion,
-            byte[] encodedSecret, SecureRandom generator) {
-
-        if (debug != null && Debug.isOn("handshake")) {
-            System.out.println("Generating a premaster secret");
-        }
-
-        try {
-            String s = ((clientVersion >= ProtocolVersion.TLS12.v) ?
-                "SunTls12RsaPremasterSecret" : "SunTlsRsaPremasterSecret");
-            KeyGenerator kg = JsseJce.getKeyGenerator(s);
-            kg.init(new TlsRsaPremasterSecretParameterSpec(
-                    clientVersion, serverVersion, encodedSecret),
-                    generator);
-            return kg.generateKey();
-        } catch (InvalidAlgorithmParameterException |
-                NoSuchAlgorithmException iae) {
-            // unlikely to happen, otherwise, must be a provider exception
-            if (debug != null && Debug.isOn("handshake")) {
-                System.out.println("RSA premaster secret generation error:");
-                iae.printStackTrace(System.out);
-            }
-            throw new RuntimeException("Could not generate premaster secret", iae);
-        }
-    }
-
     @Override
     int messageType() {
         return ht_client_key_exchange;

--- a/src/share/classes/sun/security/util/KeyUtil.java	Tue Aug 18 14:43:04 2015 +0300
+++ b/src/share/classes/sun/security/util/KeyUtil.java	Mon Aug 31 13:30:33 2015 -0700
@@ -144,6 +144,8 @@
 
     /**
      * Returns whether the specified provider is Oracle provider or not.
+     * <P>
+     * Note that this method is only apply to SunJCE and SunPKCS11 at present.
      *
      * @param  providerName
      *         the provider name
@@ -151,11 +153,8 @@
      *         {@code providerName} is Oracle provider
      */
     public static final boolean isOracleJCEProvider(String providerName) {
-        return providerName != null &&
-                (providerName.equals("SunJCE") ||
-                    providerName.equals("SunMSCAPI") ||
-                    providerName.equals("OracleUcrypto") ||
-                    providerName.startsWith("SunPKCS11"));
+        return providerName != null && (providerName.equals("SunJCE") ||
+                                        providerName.startsWith("SunPKCS11"));
     }
 
     /**