+ change exec return type to List<Object>

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/connection/DefaultStringRedisConnection.java

@@ -116,7 +116,7 @@ public class DefaultStringRedisConnection implements StringRedisConnection {
 		return delegate.echo(message);
 	}
 
-	public List<byte[]> exec() {
+	public List<Object> exec() {
 		return delegate.exec();
 	}
 

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/connection/RedisTxCommands.java

@@ -27,7 +27,7 @@ public interface RedisTxCommands {
 
 	void multi();
 
-	List<byte[]> exec();
+	List<Object> exec();
 
 	void discard();
 

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/connection/jedis/JedisConnection.java

@@ -511,19 +511,14 @@ public class JedisConnection implements RedisConnection {
 		}
 	}
 
-	@SuppressWarnings("unchecked")
 	@Override
-	public List<byte[]> exec() {
+	public List<Object> exec() {
 		try {
 			if (isPipelined()) {
 				pipeline.exec();
 				return null;
 			}
-			List execute = transaction.exec();
-			if (execute != null && !execute.isEmpty()) {
-				return (List<byte[]>) execute;
-			}
-			return Collections.emptyList();
+			return transaction.exec();
 		} catch (Exception ex) {
 			throw convertJedisAccessException(ex);
 		}

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/connection/jredis/JredisConnection.java

@@ -267,7 +267,7 @@ public class JredisConnection implements RedisConnection {
 	}
 
 	@Override
-	public List<byte[]> exec() {
+	public List<Object> exec() {
 		throw new UnsupportedOperationException();
 	}
 

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/RedisOperations.java

@@ -112,7 +112,7 @@ public interface RedisOperations<K, V> {
 
 	void discard();
 
-	Object exec();
+	List<Object> exec();
 
 	// pubsub functionality on the template
 	void convertAndSend(String destination, Object message);

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/RedisTemplate.java

@@ -419,11 +419,11 @@ public class RedisTemplate<K, V> extends RedisAccessor implements RedisOperation
 	// RedisOperations
 	//
 	@Override
-	public Object exec() {
-		return execute(new RedisCallback<Object>() {
+	public List<Object> exec() {
+		return execute(new RedisCallback<List<Object>>() {
 
 			@Override
-			public Object doInRedis(RedisConnection connection) throws DataAccessException {
+			public List<Object> doInRedis(RedisConnection connection) throws DataAccessException {
 				return connection.exec();
 			}
 		});