From d34fc29ba2e25e330f9ec167d607b6141e3f6f12 Mon Sep 17 00:00:00 2001
From: Ravi Khadiwala <ravi@signal.org>
Date: Wed, 4 Feb 2026 12:07:56 -0600
Subject: [PATCH] Add null checks in `IncomingMessageList`

---
 .../textsecuregcm/entities/IncomingMessageList.java            | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/entities/IncomingMessageList.java b/service/src/main/java/org/whispersystems/textsecuregcm/entities/IncomingMessageList.java
index 3f247e05f..e5f603463 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/entities/IncomingMessageList.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/entities/IncomingMessageList.java
@@ -49,6 +49,9 @@ public record IncomingMessageList(@NotNull
   @AssertTrue
   @Schema(hidden = true)
   public boolean isNotDuplicateRecipients() {
+    if (messages == null) {
+      return false;
+    }
     final boolean valid = messages.stream()
         .filter(Objects::nonNull)
         .map(IncomingMessage::destinationDeviceId).distinct().count() == messages.size();