From 89659e7b213009acb3c3b8956e5cedce848a3883 Mon Sep 17 00:00:00 2001
From: Nuno Santos <nsantos@adobe.com>
Date: Fri, 19 Dec 2025 14:11:33 +0100
Subject: [PATCH] Optimize PathUtils.concat for the case where parent is the
 root directory.

---
 .../java/org/apache/jackrabbit/oak/commons/PathUtils.java  | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/oak-commons/src/main/java/org/apache/jackrabbit/oak/commons/PathUtils.java b/oak-commons/src/main/java/org/apache/jackrabbit/oak/commons/PathUtils.java
index d74bfd41e55..656cf34be19 100644
--- a/oak-commons/src/main/java/org/apache/jackrabbit/oak/commons/PathUtils.java
+++ b/oak-commons/src/main/java/org/apache/jackrabbit/oak/commons/PathUtils.java
@@ -317,8 +317,11 @@ public static String concat(String parentPath, String subPath) {
         } else if (isAbsolutePath(subPath)) {
             throw new IllegalArgumentException("Cannot append absolute path " + subPath);
         }
-        String separator = denotesRootPath(parentPath) ? "" : "/";
-        return parentPath + separator + subPath;
+        if (denotesRootPath(parentPath)) {
+            return parentPath + subPath;
+        } else {
+            return parentPath + "/" + subPath;
+        }
     }
 
     /**