From 8eda8c052d84379d211b935cf55e2df86152156c Mon Sep 17 00:00:00 2001
From: Nikita <abracham.mitchell@gmail.com>
Date: Fri, 21 Jul 2017 12:17:25 +0300
Subject: [PATCH] Fixed - NullValue does not implement Serializable #981

---
 .../src/main/java/org/redisson/spring/cache/NullValue.java  | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/redisson/src/main/java/org/redisson/spring/cache/NullValue.java b/redisson/src/main/java/org/redisson/spring/cache/NullValue.java
index 563c26066..193bcf2cf 100644
--- a/redisson/src/main/java/org/redisson/spring/cache/NullValue.java
+++ b/redisson/src/main/java/org/redisson/spring/cache/NullValue.java
@@ -15,6 +15,8 @@
  */
 package org.redisson.spring.cache;
 
+import java.io.Serializable;
+
 import org.springframework.cache.Cache.ValueWrapper;
 
 /**
@@ -22,8 +24,10 @@ import org.springframework.cache.Cache.ValueWrapper;
  * @author Nikita Koksharov
  *
  */
-public class NullValue implements ValueWrapper {
+public class NullValue implements ValueWrapper, Serializable {
 
+    private static final long serialVersionUID = -8310337775544536701L;
+    
     public static final NullValue INSTANCE = new NullValue();
 
     @Override