From 1e6b8ec86b1688eb1fd4675b48f4fc2c6e8f28c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johan=20Andr=C3=A9n?= <johan@markatta.com>
Date: Mon, 13 Mar 2017 17:57:03 +0100
Subject: [PATCH] Make sure the hashcode is not negative when selecting key
 chunk #22487

---
 .../src/main/scala/akka/cluster/ddata/Replicator.scala          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/akka-distributed-data/src/main/scala/akka/cluster/ddata/Replicator.scala b/akka-distributed-data/src/main/scala/akka/cluster/ddata/Replicator.scala
index 2735df3ffa..138155b71c 100644
--- a/akka-distributed-data/src/main/scala/akka/cluster/ddata/Replicator.scala
+++ b/akka-distributed-data/src/main/scala/akka/cluster/ddata/Replicator.scala
@@ -1558,7 +1558,7 @@ final class Replicator(settings: ReplicatorSettings) extends Actor with ActorLog
     val otherKeys = otherDigests.keySet
     val myKeys =
       if (totChunks == 1) dataEntries.keySet
-      else dataEntries.keysIterator.filter(_.hashCode % totChunks == chunk).toSet
+      else dataEntries.keysIterator.filter(key => math.abs(key.hashCode) % totChunks == chunk).toSet
     val otherMissingKeys = myKeys diff otherKeys
     val keys = (otherDifferentKeys ++ otherMissingKeys).take(maxDeltaElements)
     if (keys.nonEmpty) {