From f02f4f1ceaa113cda70fc06d920cefd0366b1c8e Mon Sep 17 00:00:00 2001
From: Sergey Ponomarev <stokito@gmail.com>
Date: Mon, 2 Feb 2026 12:12:39 +0200
Subject: [PATCH] UserSearchService: use ArrayList instead of HashSet to
 minimize memory usage

---
 .../sparkimpl/search/users/UserSearchService.java           | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/core/src/main/java/org/jivesoftware/sparkimpl/search/users/UserSearchService.java b/core/src/main/java/org/jivesoftware/sparkimpl/search/users/UserSearchService.java
index 1e42e3526..1ea679ff2 100644
--- a/core/src/main/java/org/jivesoftware/sparkimpl/search/users/UserSearchService.java
+++ b/core/src/main/java/org/jivesoftware/sparkimpl/search/users/UserSearchService.java
@@ -31,9 +31,7 @@ import org.jivesoftware.spark.util.log.Log;
 import org.jxmpp.jid.DomainBareJid;
 
 import javax.swing.*;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Set;
+import java.util.*;
 
 public class UserSearchService implements Searchable {
     private Collection<DomainBareJid> searchServices;
@@ -133,7 +131,7 @@ public class UserSearchService implements Searchable {
      * @return a Collection of search services found on the server.
      */
     private Collection<DomainBareJid> getServices() {
-        final Set<DomainBareJid> searchServices = new HashSet<>();
+        List<DomainBareJid> searchServices = new ArrayList<>(2);
         ServiceDiscoveryManager discoManager = ServiceDiscoveryManager.getInstanceFor(SparkManager.getConnection());
         DiscoverItems items = SparkManager.getSessionManager().getDiscoveredItems();
         for (DiscoverItems.Item item : items.getItems() ) {