From 7a427372872580e6d4ce740e668101dbc2a1f536 Mon Sep 17 00:00:00 2001
From: AsamK <asamk@gmx.de>
Date: Wed, 27 Jul 2022 20:58:58 +0200
Subject: [PATCH] Workaround possible GraalVM issue

---
 src/main/java/org/asamk/signal/util/IOUtils.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/asamk/signal/util/IOUtils.java b/src/main/java/org/asamk/signal/util/IOUtils.java
index 2d4ffd8e..9e0d6c3e 100644
--- a/src/main/java/org/asamk/signal/util/IOUtils.java
+++ b/src/main/java/org/asamk/signal/util/IOUtils.java
@@ -121,13 +121,13 @@ public class IOUtils {
         return socketAddress;
     }
 
-    public static UnixDomainPrincipal getUnixDomainPrincipal(final SocketChannel channel) throws IOException {
+    public static String getUnixDomainPrincipal(final SocketChannel channel) throws IOException {
         UnixDomainPrincipal principal = null;
         try {
             principal = channel.getOption(ExtendedSocketOptions.SO_PEERCRED);
         } catch (UnsupportedOperationException | NoClassDefFoundError ignored) {
         }
-        return principal;
+        return principal == null ? null : principal.toString();
     }
 
     public static ServerSocketChannel bindSocket(final SocketAddress address) throws IOErrorException {