From ce5c4f3b4ba000693c675eec626b6a3e27f89f35 Mon Sep 17 00:00:00 2001
From: Agil <41694337+AgilAghamirzayev@users.noreply.github.com>
Date: Fri, 13 Feb 2026 20:40:48 +0400
Subject: [PATCH] Refactor calculateHashCode method for clarity

This will:
1. Mathematical Distribution (Collision Reduction)
2. Pipelining and CPU Caching
3. Avoiding "Method Heavy" Expressions

See gh-36325

Signed-off-by: Agil <41694337+AgilAghamirzayev@users.noreply.github.com>
---
 .../servlet/mvc/method/RequestMappingInfo.java | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/RequestMappingInfo.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/RequestMappingInfo.java
index bef16b4fc7d..af50551949e 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/RequestMappingInfo.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/RequestMappingInfo.java
@@ -541,11 +541,19 @@ public final class RequestMappingInfo implements RequestCondition<RequestMapping
 
 	@SuppressWarnings({"ConstantConditions", "NullAway", "removal"})
 	private int calculateHashCode() {
-		return (this.pathPatternsCondition != null ? this.pathPatternsCondition : this.patternsCondition).hashCode() * 31 +
-				this.methodsCondition.hashCode() +
-				this.paramsCondition.hashCode() + this.headersCondition.hashCode() +
-				this.consumesCondition.hashCode() + this.producesCondition.hashCode() +
-				this.versionCondition.hashCode() + this.customConditionHolder.hashCode();
+		Object patternBase = (this.pathPatternsCondition != null) 
+                             ? this.pathPatternsCondition 
+                             : this.patternsCondition;
+                             
+        int h = patternBase.hashCode();
+        h = 31 * h + methodsCondition.hashCode();
+        h = 31 * h + paramsCondition.hashCode();
+        h = 31 * h + headersCondition.hashCode();
+        h = 31 * h + consumesCondition.hashCode();
+        h = 31 * h + producesCondition.hashCode();
+        h = 31 * h + customConditionHolder.hashCode();
+
+		return h;
 	}
 
 	@Override