From eba0159021ca044235819a05d4f1fe57a1e63597 Mon Sep 17 00:00:00 2001
From: M66B <M66B@users.noreply.github.com>
Date: Sun, 11 Aug 2019 10:18:23 +0200
Subject: [PATCH] Prevent crash

---
 app/src/main/java/eu/faircode/email/ViewModelMessages.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/faircode/email/ViewModelMessages.java b/app/src/main/java/eu/faircode/email/ViewModelMessages.java
index 9da9434973..3ad4f25f1c 100644
--- a/app/src/main/java/eu/faircode/email/ViewModelMessages.java
+++ b/app/src/main/java/eu/faircode/email/ViewModelMessages.java
@@ -265,7 +265,10 @@ public class ViewModelMessages extends ViewModel {
             protected List<Long> onExecute(Context context, Bundle args) {
                 List<Long> ids = new ArrayList<>();
 
-                LimitOffsetDataSource<TupleMessageEx> ds = (LimitOffsetDataSource<TupleMessageEx>) model.list.getValue().getDataSource();
+                PagedList<TupleMessageEx> plist = model.list.getValue();
+                if (plist == null)
+                    return ids;
+                LimitOffsetDataSource<TupleMessageEx> ds = (LimitOffsetDataSource<TupleMessageEx>) plist.getDataSource();
                 int count = ds.countItems();
                 for (int i = 0; i < count; i += 100)
                     for (TupleMessageEx message : ds.loadRange(i, Math.min(100, count - i)))