src/share/classes/java/util/concurrent/ThreadLocalRandom.java

@@ -368,48 +368,24 @@
     private static final long serialVersionUID = -5851777807851030925L;
 
     /**
      * @serialField rnd long
      * @serialField initialized boolean
-     * @serialField pad0 long
-     * @serialField pad1 long
-     * @serialField pad2 long
-     * @serialField pad3 long
-     * @serialField pad4 long
-     * @serialField pad5 long
-     * @serialField pad6 long
-     * @serialField pad7 long
      */
     private static final ObjectStreamField[] serialPersistentFields = {
             new ObjectStreamField("rnd", long.class),
-            new ObjectStreamField("initialized", boolean.class),
-            new ObjectStreamField("pad0", long.class),
-            new ObjectStreamField("pad1", long.class),
-            new ObjectStreamField("pad2", long.class),
-            new ObjectStreamField("pad3", long.class),
-            new ObjectStreamField("pad4", long.class),
-            new ObjectStreamField("pad5", long.class),
-            new ObjectStreamField("pad6", long.class),
-            new ObjectStreamField("pad7", long.class) };
+            new ObjectStreamField("initialized", boolean.class) };
 
     /**
      * Saves the {@code ThreadLocalRandom} to a stream (that is, serializes it).
      */
     private void writeObject(java.io.ObjectOutputStream out)
         throws java.io.IOException {
 
         java.io.ObjectOutputStream.PutField fields = out.putFields();
-        fields.put("rnd", 0L);
+        fields.put("rnd", UNSAFE.getLong(Thread.currentThread(), SEED));
         fields.put("initialized", true);
-        fields.put("pad0", 0L);
-        fields.put("pad1", 0L);
-        fields.put("pad2", 0L);
-        fields.put("pad3", 0L);
-        fields.put("pad4", 0L);
-        fields.put("pad5", 0L);
-        fields.put("pad6", 0L);
-        fields.put("pad7", 0L);
         out.writeFields();
     }
 
     /**
      * Returns the {@link #current() current} thread's {@code ThreadLocalRandom}.