diff --git a/src/main/java/org/redisson/reactive/RedissonListReactive.java b/src/main/java/org/redisson/reactive/RedissonListReactive.java
index 236d50729..afe5d5fa7 100644
--- a/src/main/java/org/redisson/reactive/RedissonListReactive.java
+++ b/src/main/java/org/redisson/reactive/RedissonListReactive.java
@@ -27,7 +27,6 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
-import org.reactivestreams.Processor;
 import org.reactivestreams.Publisher;
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
@@ -42,7 +41,6 @@ import org.redisson.client.protocol.convertor.IntegerReplayConvertor;
 import org.redisson.client.protocol.convertor.LongReplayConvertor;
 import org.redisson.command.CommandReactiveExecutor;
 
-import reactor.core.reactivestreams.SubscriberBarrier;
 import reactor.rx.Stream;
 import reactor.rx.subscription.ReactiveSubscription;
 
@@ -173,7 +171,7 @@ public class RedissonListReactive<V> extends RedissonExpirableReactive implement
     }
 
     @Override
-    public Publisher<Long> addAll(final Collection<? extends V> c) {
+    public Publisher<Long> addAll(Collection<? extends V> c) {
         if (c.isEmpty()) {
             return size();
         }
@@ -185,7 +183,11 @@ public class RedissonListReactive<V> extends RedissonExpirableReactive implement
     }
 
     @Override
-    public Publisher<Long> addAll(final long index, final Collection<? extends V> coll) {
+    public Publisher<Long> addAll(long index, Collection<? extends V> coll) {
+        if (index < 0) {
+            throw new IndexOutOfBoundsException("index: " + index);
+        }
+
         if (coll.isEmpty()) {
             return size();
         }
@@ -198,41 +200,19 @@ public class RedissonListReactive<V> extends RedissonExpirableReactive implement
             return commandExecutor.writeReactive(getName(), codec, RedisCommands.LPUSH, elements.toArray());
         }
 
-        final Processor<Long, Long> promise = newObservable();
-
-        Publisher<Long> s = size();
-        s.subscribe(new SubscriberBarrier<Long, Long>(promise) {
-            @Override
-            public void doNext(Long size) {
-                if (!isPositionInRange(index, size)) {
-                    IndexOutOfBoundsException e = new IndexOutOfBoundsException("index: " + index + " but current size: "+ size);
-                    promise.onError(e);
-                    return;
-                }
-
-                if (index >= size) {
-                    addAll(coll).subscribe(toSubscriber(promise));
-                    return;
-                }
-
-                // insert into middle of list
-
-                List<Object> args = new ArrayList<Object>(coll.size() + 1);
-                args.add(index);
-                args.addAll(coll);
-                Publisher<Long> f = commandExecutor.evalWriteReactive(getName(), codec, new RedisCommand<Long>("EVAL", new LongReplayConvertor(), 5),
-                        "local ind = table.remove(ARGV, 1); " + // index is the first parameter
-                                "local tail = redis.call('lrange', KEYS[1], ind, -1); " +
-                                "redis.call('ltrim', KEYS[1], 0, ind - 1); " +
-                                "for i, v in ipairs(ARGV) do redis.call('rpush', KEYS[1], v) end;" +
-                                "for i, v in ipairs(tail) do redis.call('rpush', KEYS[1], v) end;" +
-                                "return redis.call('llen', KEYS[1]);",
-                        Collections.<Object>singletonList(getName()), args.toArray());
-                f.subscribe(toSubscriber(promise));
-            }
-
-        });
-        return promise;
+        List<Object> args = new ArrayList<Object>(coll.size() + 1);
+        args.add(index);
+        args.addAll(coll);
+        return commandExecutor.evalWriteReactive(getName(), codec, new RedisCommand<Long>("EVAL", new LongReplayConvertor(), 5),
+                "local ind = table.remove(ARGV, 1); " + // index is the first parameter
+                        "local size = redis.call('llen', KEYS[1]); " +
+                        "assert(tonumber(ind) <= size, 'index: ' .. ind .. ' but current size: ' .. size); " +
+                        "local tail = redis.call('lrange', KEYS[1], ind, -1); " +
+                        "redis.call('ltrim', KEYS[1], 0, ind - 1); " +
+                        "for i, v in ipairs(ARGV) do redis.call('rpush', KEYS[1], v) end;" +
+                        "for i, v in ipairs(tail) do redis.call('rpush', KEYS[1], v) end;" +
+                        "return redis.call('llen', KEYS[1]);",
+                Collections.<Object>singletonList(getName()), args.toArray());
     }
 
     @Override
diff --git a/src/main/java/org/redisson/reactive/RedissonObjectReactive.java b/src/main/java/org/redisson/reactive/RedissonObjectReactive.java
index 81c251806..9d0b4f345 100644
--- a/src/main/java/org/redisson/reactive/RedissonObjectReactive.java
+++ b/src/main/java/org/redisson/reactive/RedissonObjectReactive.java
@@ -60,10 +60,6 @@ abstract class RedissonObjectReactive implements RObjectReactive {
         };
     }
 
-    protected <V> Processor<V, V> newObservable() {
-        return Broadcaster.create();
-    }
-
     protected <V> Stream<V> newSucceededObservable(V result) {
         return Streams.just(result);
     }
diff --git a/src/test/java/org/redisson/BaseReactiveTest.java b/src/test/java/org/redisson/BaseReactiveTest.java
index 9bebcda0d..f991a5f07 100644
--- a/src/test/java/org/redisson/BaseReactiveTest.java
+++ b/src/test/java/org/redisson/BaseReactiveTest.java
@@ -11,6 +11,7 @@ import org.redisson.api.RCollectionReactive;
 import org.redisson.api.RScoredSortedSetReactive;
 import org.redisson.api.RedissonReactiveClient;
 
+import reactor.rx.Promise;
 import reactor.rx.Streams;
 
 public abstract class BaseReactiveTest {
@@ -40,7 +41,11 @@ public abstract class BaseReactiveTest {
     }
 
     public <V> V sync(Publisher<V> ob) {
-        List<V> t = Streams.create(ob).toList().poll();
+        Promise<List<V>> promise = Streams.create(ob).toList();
+        List<V> t = promise.poll();
+        if (promise.isError()) {
+            throw new RuntimeException(promise.reason());
+        }
         if (t == null) {
             return null;
         }
@@ -64,7 +69,7 @@ public abstract class BaseReactiveTest {
 
     @After
     public void after() {
-        redisson.flushdb();
+        sync(redisson.getKeys().flushdb());
     }
 
 }
diff --git a/src/test/java/org/redisson/RedissonKeysReactiveTest.java b/src/test/java/org/redisson/RedissonKeysReactiveTest.java
index e2bff39b6..8ec975b58 100644
--- a/src/test/java/org/redisson/RedissonKeysReactiveTest.java
+++ b/src/test/java/org/redisson/RedissonKeysReactiveTest.java
@@ -36,7 +36,7 @@ public class RedissonKeysReactiveTest extends BaseReactiveTest {
         MatcherAssert.assertThat(sync(redisson.getKeys().randomKey()), Matchers.isOneOf("test1", "test2"));
         sync(redisson.getKeys().delete("test1"));
         Assert.assertEquals(sync(redisson.getKeys().randomKey()), "test2");
-        redisson.flushdb();
+        sync(redisson.getKeys().flushdb());
         Assert.assertNull(sync(redisson.getKeys().randomKey()));
     }
 
diff --git a/src/test/java/org/redisson/RedissonListReactiveTest.java b/src/test/java/org/redisson/RedissonListReactiveTest.java
index 210b43780..550a65d9d 100644
--- a/src/test/java/org/redisson/RedissonListReactiveTest.java
+++ b/src/test/java/org/redisson/RedissonListReactiveTest.java
@@ -1,8 +1,10 @@
 package org.redisson;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Iterator;
+import java.util.List;
 import java.util.concurrent.CountDownLatch;
 
 import org.hamcrest.MatcherAssert;
@@ -359,6 +361,12 @@ public class RedissonListReactiveTest extends BaseReactiveTest {
         Assert.assertThat(sync(list), Matchers.contains(1, 2));
     }
 
+    @Test(expected = RedisException.class)
+    public void testAddAllError() {
+        RListReactive<Integer> list = redisson.getList("list");
+        sync(list.addAll(2, Arrays.asList(7, 8, 9)));
+    }
+
     @Test
     public void testAddAllIndex() {
         RListReactive<Integer> list = redisson.getList("list");
@@ -368,7 +376,7 @@ public class RedissonListReactiveTest extends BaseReactiveTest {
         sync(list.add(4));
         sync(list.add(5));
 
-        sync(list.addAll(2, Arrays.asList(7, 8, 9)));
+        Assert.assertEquals(8, sync(list.addAll(2, Arrays.asList(7, 8, 9))).longValue());
 
         Assert.assertThat(sync(list), Matchers.contains(1, 2, 7, 8, 9, 3, 4, 5));