From 56abdd6ce32d29996839594df46111e9d64a99a8 Mon Sep 17 00:00:00 2001
From: Ales Justin <ales.justin@gmail.com>
Date: Sun, 14 May 2023 14:51:01 +0200
Subject: [PATCH] Fix mutabillity.

---
 .../java/io/quarkus/grpc/runtime/stork/StorkGrpcChannel.java     | 1 +
 1 file changed, 1 insertion(+)

diff --git a/extensions/grpc/runtime/src/main/java/io/quarkus/grpc/runtime/stork/StorkGrpcChannel.java b/extensions/grpc/runtime/src/main/java/io/quarkus/grpc/runtime/stork/StorkGrpcChannel.java
index 97791c2190fea..51e7995434647 100644
--- a/extensions/grpc/runtime/src/main/java/io/quarkus/grpc/runtime/stork/StorkGrpcChannel.java
+++ b/extensions/grpc/runtime/src/main/java/io/quarkus/grpc/runtime/stork/StorkGrpcChannel.java
@@ -176,6 +176,7 @@ private Uni<ServiceInstance> pickServerInstance(Service service, boolean measure
                         return Uni.createFrom().item(list);
                     }
                 })
+                .map(ArrayList::new) // make it mutable
                 .invoke(list -> {
                     // list should not be empty + sort by id
                     list.sort(Comparator.comparing(ServiceInstance::getId));