From f1b3f7d5dd013c574a86bd569e5da9e802ad1ea4 Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Wed, 5 Jan 2022 12:41:14 +0200
Subject: [PATCH] fix regtest public server preference regression

---
 .../sparrow/preferences/ServerPreferencesController.java    | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/sparrowwallet/sparrow/preferences/ServerPreferencesController.java b/src/main/java/com/sparrowwallet/sparrow/preferences/ServerPreferencesController.java
index 971011e0..5679705d 100644
--- a/src/main/java/com/sparrowwallet/sparrow/preferences/ServerPreferencesController.java
+++ b/src/main/java/com/sparrowwallet/sparrow/preferences/ServerPreferencesController.java
@@ -359,9 +359,11 @@ public class ServerPreferencesController extends PreferencesDetailController {
         });
 
         PublicElectrumServer configPublicElectrumServer = PublicElectrumServer.fromUrl(config.getPublicElectrumServer());
-        if(configPublicElectrumServer == null) {
+        if(configPublicElectrumServer == null && PublicElectrumServer.supportedNetwork()) {
             List<PublicElectrumServer> servers = PublicElectrumServer.getServers();
-            publicElectrumServer.setValue(servers.get(new Random().nextInt(servers.size())));
+            if(!servers.isEmpty()) {
+                publicElectrumServer.setValue(servers.get(new Random().nextInt(servers.size())));
+            }
         } else {
             publicElectrumServer.setValue(configPublicElectrumServer);
         }