ttl return -1 if key does not have an associated expire but return -2 if key does not exists

src/main/java/redis/clients/jedis/Jedis.java

@@ -1,14 +1,21 @@
 package redis.clients.jedis;
 
+import java.net.URI;
+import java.util.AbstractMap;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
 import redis.clients.jedis.BinaryClient.LIST_POSITION;
 import redis.clients.util.Pool;
 import redis.clients.util.SafeEncoder;
 import redis.clients.util.Slowlog;
 
-import java.net.URI;
-import java.util.*;
-import java.util.Map.Entry;
-
 public class Jedis extends BinaryJedis implements JedisCommands,
 	MultiKeyCommands, AdvancedJedisCommands, ScriptingCommands,
 	BasicCommands, ClusterCommands {
@@ -310,8 +317,9 @@ public class Jedis extends BinaryJedis implements JedisCommands,
      * 
      * @param key
      * @return Integer reply, returns the remaining time to live in seconds of a
-     *         key that has an EXPIRE. If the Key does not exists or does not
+     *         key that has an EXPIRE. 
-     *         have an associated expire, -1 is returned.
+     *         If the Key does not have an associated expire, -1 is returned.
+     *         If the Key does not exists, -2 is returned. 
      */
     public Long ttl(final String key) {
 	checkIsInMulti();