From e02e4d52b4b79cff252c7fc4814b9ca44f625189 Mon Sep 17 00:00:00 2001
From: Alan Evans <alan@signal.org>
Date: Tue, 31 Mar 2020 12:01:01 -0300
Subject: [PATCH] Prevent empty message processing.

---
 .../signalservice/api/messages/SignalServiceDataMessage.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceDataMessage.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceDataMessage.java
index a3d4067f41..81442fc1ff 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceDataMessage.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/messages/SignalServiceDataMessage.java
@@ -10,6 +10,7 @@ import org.whispersystems.libsignal.InvalidMessageException;
 import org.whispersystems.libsignal.util.guava.Optional;
 import org.whispersystems.signalservice.api.messages.shared.SharedContact;
 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
+import org.whispersystems.signalservice.api.util.OptionalUtil;
 
 import java.util.LinkedList;
 import java.util.List;
@@ -61,7 +62,7 @@ public class SignalServiceDataMessage {
     }
 
     this.timestamp             = timestamp;
-    this.body                  = Optional.fromNullable(body);
+    this.body                  = OptionalUtil.absentIfEmpty(body);
     this.endSession            = endSession;
     this.expiresInSeconds      = expiresInSeconds;
     this.expirationUpdate      = expirationUpdate;