diff -r 21057752f324 -r 971a7101da5b jdk/src/java.base/share/classes/sun/security/provider/HashDrbg.java
--- a/jdk/src/java.base/share/classes/sun/security/provider/HashDrbg.java	Mon Jun 06 16:46:54 2016 -0700
+++ b/jdk/src/java.base/share/classes/sun/security/provider/HashDrbg.java	Tue Jun 07 10:10:59 2016 +0800
@@ -25,7 +25,6 @@
 
 package sun.security.provider;
 
-import java.io.IOException;
 import java.math.BigInteger;
 import java.security.DigestException;
 import java.security.MessageDigest;
@@ -36,15 +35,13 @@
 
 public class HashDrbg extends AbstractHashDrbg {
 
-    private static final long serialVersionUID = 9L;
-
     private static final byte[] ZERO = new byte[1];
     private static final byte[] ONE = new byte[]{1};
 
-    private transient MessageDigest digest;
+    private MessageDigest digest;
 
-    private transient byte[] v;
-    private transient byte[] c;
+    private byte[] v;
+    private byte[] c;
 
     public HashDrbg(SecureRandomParameters params) {
         mechName = "Hash_DRBG";
@@ -267,10 +264,4 @@
         // Step 5: No need to truncate
         // Step 6: Return
     }
-
-    private void readObject(java.io.ObjectInputStream s)
-            throws IOException, ClassNotFoundException {
-        s.defaultReadObject ();
-        initEngine();
-    }
 }