From 052bbcc53031bd48dc76d070ba862f5293618600 Mon Sep 17 00:00:00 2001
From: Sam Brannen <104798+sbrannen@users.noreply.github.com>
Date: Thu, 8 Feb 2024 18:14:22 +0100
Subject: [PATCH] Cache parameter types array in
 ClassUtils.findInterfaceMethodIfPossible()

---
 .../java/org/springframework/util/ClassUtils.java     | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/spring-core/src/main/java/org/springframework/util/ClassUtils.java b/spring-core/src/main/java/org/springframework/util/ClassUtils.java
index 0a0fe6d9932..3218838cac6 100644
--- a/spring-core/src/main/java/org/springframework/util/ClassUtils.java
+++ b/spring-core/src/main/java/org/springframework/util/ClassUtils.java
@@ -1425,12 +1425,17 @@ public abstract class ClassUtils {
 	}
 
 	private static Method findInterfaceMethodIfPossible(Method method, Class<?> startClass, Class<?> endClass) {
+		Class<?>[] parameterTypes = null;
 		Class<?> current = startClass;
 		while (current != null && current != endClass) {
-			Class<?>[] ifcs = current.getInterfaces();
-			for (Class<?> ifc : ifcs) {
+			if (parameterTypes == null) {
+				// Since Method#getParameterTypes() clones the array, we lazily retrieve
+				// and cache parameter types to avoid cloning the array multiple times.
+				parameterTypes = method.getParameterTypes();
+			}
+			for (Class<?> ifc : current.getInterfaces()) {
 				try {
-					return ifc.getMethod(method.getName(), method.getParameterTypes());
+					return ifc.getMethod(method.getName(), parameterTypes);
 				}
 				catch (NoSuchMethodException ex) {
 					// ignore