Handle user in EntityBuilder#createApplicationEmoji as optional (#2769)

Author: Xirado

src/main/java/net/dv8tion/jda/internal/JDAImpl.java

@@ -693,7 +693,8 @@ public RestAction<ApplicationEmoji> createApplicationEmoji(@Nonnull String name,
         return new RestActionImpl<>(this, route, body, (response, request) ->
         {
             final DataObject obj = response.getObject();
-            return entityBuilder.createApplicationEmoji(this, obj);
+            final User selfUser = getSelfUser();
+            return entityBuilder.createApplicationEmoji(this, obj, selfUser);
         });
     }
 
@@ -710,7 +711,12 @@ public RestAction<List<ApplicationEmoji>> retrieveApplicationEmojis()
             {
                 try
                 {
-                    list.add(entityBuilder.createApplicationEmoji(this, emojis.getObject(i)));
+                    final DataObject emoji = emojis.getObject(i);
+                    final User owner = emoji.optObject("user")
+                            .map(entityBuilder::createUser)
+                            .orElse(null);
+
+                    list.add(entityBuilder.createApplicationEmoji(this, emoji, owner));
                 }
                 catch (ParsingException e)
                 {
@@ -728,9 +734,15 @@ public RestAction<ApplicationEmoji> retrieveApplicationEmojiById(@Nonnull String
     {
         Checks.isSnowflake(emojiId);
         Route.CompiledRoute route = Route.Applications.GET_APPLICATION_EMOJI.compile(getSelfUser().getApplicationId(), emojiId);
-        return new RestActionImpl<>(this, route,
-                (response, request) -> entityBuilder.createApplicationEmoji(this, response.getObject())
-        );
+        return new RestActionImpl<>(this, route, (response, request) ->
+        {
+            final DataObject emoji = response.getObject();
+            final User owner = emoji.optObject("user")
+                    .map(entityBuilder::createUser)
+                    .orElse(null);
+
+            return entityBuilder.createApplicationEmoji(this, emoji, owner);
+        });
     }
 
     @Nonnull

src/main/java/net/dv8tion/jda/internal/entities/EntityBuilder.java

@@ -1021,11 +1021,11 @@ public RichCustomEmojiImpl createEmoji(GuildImpl guildObj, DataObject json)
                 .setAvailable(json.getBoolean("available", true));
     }
 
-    public ApplicationEmojiImpl createApplicationEmoji(JDAImpl api, DataObject json)
+    public ApplicationEmojiImpl createApplicationEmoji(JDAImpl api, DataObject json, User owner)
     {
         final long emojiId = json.getUnsignedLong("id");
-        final User user = createUser(json.getObject("user"));
-        return new ApplicationEmojiImpl(emojiId, api, user)
+
+        return new ApplicationEmojiImpl(emojiId, api, owner)
                 .setAnimated(json.getBoolean("animated"))
                 .setName(json.getString("name"));
     }