From 0268e762980f302e251a92743dd6724403660399 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=B5=D1=80=D0=B3=D0=B5=D0=B9=20=D0=A6=D1=8B=D0=BF?=
 =?UTF-8?q?=D0=B0=D0=BD=D0=BE=D0=B2?= <sergei.tsypanov@yandex.ru>
Date: Thu, 23 Sep 2021 14:48:04 +0300
Subject: [PATCH] Improve mapping function in
 ExtendedEntityManagerCreator.createProxy()

Closes gh-27456
---
 .../orm/jpa/ExtendedEntityManagerCreator.java             | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java b/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java
index 8e9173a94bf..55431d805f3 100644
--- a/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java
+++ b/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java
@@ -230,10 +230,10 @@ public abstract class ExtendedEntityManagerCreator {
 
 		if (emIfc != null) {
 			interfaces = cachedEntityManagerInterfaces.computeIfAbsent(emIfc, key -> {
-				Set<Class<?>> ifcs = new LinkedHashSet<>(4);
-				ifcs.add(key);
-				ifcs.add(EntityManagerProxy.class);
-				return ClassUtils.toClassArray(ifcs);
+				if (EntityManagerProxy.class.equals(key)) {
+					return new Class<?>[] {key};
+				}
+				return new Class<?>[] {key, EntityManagerProxy.class};
 			});
 		}
 		else {