From f9eb2c506bc9d2d27916fe649f319b3aa73c6797 Mon Sep 17 00:00:00 2001
From: Phillip Davis <phdavis1027@gmail.com>
Date: Wed, 22 Apr 2026 14:44:24 -0400
Subject: [PATCH] null-guard onScrollListener

turns out that `android.widget.AbsView` calls the listener immediately
after setting it
---
 .../java/eu/siacs/conversations/ui/ConversationFragment.java  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index f9e5bfe005adae4d8fd3149c6e99acdfb7d2698a..1a21bb6e5a41e5c105fb7e1db39e9e5bb8fe4c60 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -372,6 +372,10 @@ public class ConversationFragment extends XmppFragment
                         int visibleItemCount,
                         int totalItemCount) {
                     toggleScrollDownButton(view);
+                    final Conversation conversation = ConversationFragment.this.conversation;
+                    if (conversation == null) {
+                        return;
+                    }
                     synchronized (ConversationFragment.this.messageList) {
                         boolean paginateBackward = firstVisibleItem < 5;
                         boolean paginationForward = conversation.isInHistoryPart() && firstVisibleItem + visibleItemCount + 5 > totalItemCount;