From ee68fdb3fb8747b068011f0fe84b87bcfbbc8902 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tr=E1=BA=A5n=20Nguy=E1=BB=85n?=
 <59108692+tran4774@users.noreply.github.com>
Date: Sun, 17 Nov 2024 01:13:31 +0700
Subject: [PATCH] Wrong index of ParameterizedType argument of Map when
 register type to be generated in JacksonCodeGenerator

---
 .../jackson/deployment/processor/JacksonCodeGenerator.java      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/resteasy-reactive/rest-jackson/deployment/src/main/java/io/quarkus/resteasy/reactive/jackson/deployment/processor/JacksonCodeGenerator.java b/extensions/resteasy-reactive/rest-jackson/deployment/src/main/java/io/quarkus/resteasy/reactive/jackson/deployment/processor/JacksonCodeGenerator.java
index b822619d7bc9f..b06abe3deaf15 100644
--- a/extensions/resteasy-reactive/rest-jackson/deployment/src/main/java/io/quarkus/resteasy/reactive/jackson/deployment/processor/JacksonCodeGenerator.java
+++ b/extensions/resteasy-reactive/rest-jackson/deployment/src/main/java/io/quarkus/resteasy/reactive/jackson/deployment/processor/JacksonCodeGenerator.java
@@ -193,7 +193,7 @@ protected FieldKind registerTypeToBeGenerated(Type fieldType, String typeName) {
                 }
             }
             if (pType.arguments().size() == 2 && typeName.equals("java.util.Map")) {
-                registerTypeToBeGenerated(pType.arguments().get(1));
+                registerTypeToBeGenerated(pType.arguments().get(0));
                 registerTypeToBeGenerated(pType.arguments().get(1));
                 return FieldKind.MAP;
             }