From 09db9e574b78fe663eeca47afdb4fef4371083b6 Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Thu, 19 Jan 2023 19:45:48 +0100
Subject: [PATCH] do not return NodeHash if no valid hash mech is found

---
 .../android/xmpp/model/capabilties/EntityCapabilities.java | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/main/java/im/conversations/android/xmpp/model/capabilties/EntityCapabilities.java b/src/main/java/im/conversations/android/xmpp/model/capabilties/EntityCapabilities.java
index b55f64bc7..f8ed4ef66 100644
--- a/src/main/java/im/conversations/android/xmpp/model/capabilties/EntityCapabilities.java
+++ b/src/main/java/im/conversations/android/xmpp/model/capabilties/EntityCapabilities.java
@@ -1,5 +1,7 @@
 package im.conversations.android.xmpp.model.capabilties;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import im.conversations.android.xmpp.model.Extension;
 
 public interface EntityCapabilities {
@@ -20,7 +22,7 @@ public interface EntityCapabilities {
         } else {
             return null;
         }
-        return new NodeHash(node, hash);
+        return hash == null ? null : new NodeHash(node, hash);
     }
 
     class NodeHash {
@@ -28,7 +30,8 @@ public interface EntityCapabilities {
         public final im.conversations.android.xmpp.EntityCapabilities.Hash hash;
 
         private NodeHash(
-                String node, final im.conversations.android.xmpp.EntityCapabilities.Hash hash) {
+                @Nullable String node,
+                @NonNull final im.conversations.android.xmpp.EntityCapabilities.Hash hash) {
             this.node = node;
             this.hash = hash;
         }