diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8ff70c80c..3c39a9366 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -3,6 +3,11 @@ Have at least a local copy of built redis, for more information see [tutorial](h
 
 Note that redis shouldn't be running - the build will start instances as needed.
 
+
+## Choosing the building branch
+Prior to the build, you may need to change branch depending on which version of Redisson you want to build. Currently master branch is for version 2.x whereas 3.0.0 branch is for 3.x branch. Version 2.x requies Java SDK 6 and above and version 3.x requires Java SDK 8 and above to build.
+
+
 ## Running the tests ##
 
 ``` bash
@@ -10,4 +15,4 @@ export REDIS_BIN=<path to redis binaries>
 
 # And finally running the build
 mvn -DargLine="-Xmx2g -DredisBinary=$REDIS_BIN/redis-server" -Punit-test clean test -e -X
-```
\ No newline at end of file
+```
diff --git a/redisson/src/main/java/org/redisson/JndiRedissonFactory.java b/redisson/src/main/java/org/redisson/JndiRedissonFactory.java
index 10b7586c0..89370dd59 100644
--- a/redisson/src/main/java/org/redisson/JndiRedissonFactory.java
+++ b/redisson/src/main/java/org/redisson/JndiRedissonFactory.java
@@ -32,6 +32,7 @@ import org.redisson.client.codec.Codec;
 import org.redisson.config.Config;
 
 /**
+ * Redisson object factory used to register instance in JNDI registry. 
  * 
  * @author Nikita Koksharov
  *
diff --git a/redisson/src/main/java/org/redisson/transaction/BaseTransactionalMap.java b/redisson/src/main/java/org/redisson/transaction/BaseTransactionalMap.java
index f0bdb6b68..16369b205 100644
--- a/redisson/src/main/java/org/redisson/transaction/BaseTransactionalMap.java
+++ b/redisson/src/main/java/org/redisson/transaction/BaseTransactionalMap.java
@@ -699,7 +699,7 @@ public class BaseTransactionalMap<K, V> {
             }
         }
 
-        RFuture<Map<K, V>> future = ((RedissonMap<K, V>)map).getAllOperationAsync(keysToLoad);
+        RFuture<Map<K, V>> future = ((RedissonMap<K, V>)this.map).getAllOperationAsync(keysToLoad);
         future.addListener(new FutureListener<Map<K, V>>() {
             @Override
             public void operationComplete(Future<Map<K, V>> future) throws Exception {
diff --git a/redisson/src/test/java/org/redisson/transaction/RedissonBaseTransactionalMapTest.java b/redisson/src/test/java/org/redisson/transaction/RedissonBaseTransactionalMapTest.java
index b8b87cafe..f0671419c 100644
--- a/redisson/src/test/java/org/redisson/transaction/RedissonBaseTransactionalMapTest.java
+++ b/redisson/src/test/java/org/redisson/transaction/RedissonBaseTransactionalMapTest.java
@@ -2,7 +2,9 @@ package org.redisson.transaction;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Map;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -45,6 +47,19 @@ public abstract class RedissonBaseTransactionalMapTest extends BaseTest {
         assertThat(m.size()).isZero();
     }
     
+    @Test
+    public void testGetAll() {
+        RMap<String, String> m = getMap();
+        m.put("1", "2");
+        m.put("3", "4");
+        
+        RTransaction t = redisson.createTransaction(TransactionOptions.defaults());
+        RMap<String, String> map = getTransactionalMap(t);
+        assertThat(map.getAll(new HashSet<String>(Arrays.asList("1", "3"))).values()).containsOnly("2", "4");
+        
+        t.commit();
+    }
+    
     @Test
     public void testFastPut() throws InterruptedException {
         ExecutorService executor = Executors.newFixedThreadPool(2000);