Fix Jedis brPop executes twice in a transaction

DATAREDIS-159

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

@@ -1228,6 +1228,7 @@ public class JedisConnection implements RedisConnection {
 		try {
 			if (isQueueing()) {
 				transaction.brpop(JedisUtils.bXPopArgs(timeout, keys));
+				return null;
 			}
 			if (isPipelined()) {
 				pipeline.brpop(JedisUtils.bXPopArgs(timeout, keys));

src/test/java/org/springframework/data/redis/connection/jedis/JedisConnectionTransactionIntegrationTests.java

@@ -15,14 +15,6 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 public class JedisConnectionTransactionIntegrationTests extends
 		JedisConnectionPipelineIntegrationTests {
 
-	@Ignore("DATAREDIS-159 brPop executes twice in a transaction")
-	public void testBRPop() {
-	}
-
-	@Ignore("DATAREDIS-159 brPop executes twice in a transaction")
-	public void testBRPopTimeout() {
-	}
-
 	@Ignore
 	public void testMultiDiscard() {
 	}