From f89bf8e4a355da770f7325209725f2bece6415f8 Mon Sep 17 00:00:00 2001
From: Martin Kouba <mkouba@redhat.com>
Date: Fri, 26 Mar 2021 14:16:51 +0100
Subject: [PATCH] Dev mode - fix class comparison logic for instrumentation

- always compare the number of methods
- resolves #16047
---
 .../io/quarkus/deployment/dev/ClassComparisonUtil.java   | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/core/deployment/src/main/java/io/quarkus/deployment/dev/ClassComparisonUtil.java b/core/deployment/src/main/java/io/quarkus/deployment/dev/ClassComparisonUtil.java
index afb543f8dc541..81850cefc40b5 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/dev/ClassComparisonUtil.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/dev/ClassComparisonUtil.java
@@ -52,9 +52,14 @@ static boolean isSameStructure(ClassInfo clazz, ClassInfo old) {
                 return false;
             }
         }
-        for (MethodInfo method : clazz.methods()) {
+        List<MethodInfo> methods = clazz.methods();
+        List<MethodInfo> oldMethods = old.methods();
+        if (methods.size() != oldMethods.size()) {
+            return false;
+        }
+        for (MethodInfo method : methods) {
             MethodInfo om = null;
-            for (MethodInfo i : old.methods()) {
+            for (MethodInfo i : oldMethods) {
                 if (!i.name().equals(method.name())) {
                     continue;
                 }