From ab6ec5bd74af20ab429509eb56fc8e3dff4c7fc7 Mon Sep 17 00:00:00 2001
From: huazhongming <crazyhzm@apache.org>
Date: Wed, 28 Feb 2024 15:46:36 +0800
Subject: [PATCH] [MNG-7976] Investigate MNG-6127 IT instability (#1422)

Signed-off-by: crazyhzm <crazyhzm@apache.org>
---
 .../apache/maven/lifecycle/mapping/DefaultLifecycleMapping.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/maven-core/src/main/java/org/apache/maven/lifecycle/mapping/DefaultLifecycleMapping.java b/maven-core/src/main/java/org/apache/maven/lifecycle/mapping/DefaultLifecycleMapping.java
index da7f6b227ada..859430902622 100644
--- a/maven-core/src/main/java/org/apache/maven/lifecycle/mapping/DefaultLifecycleMapping.java
+++ b/maven-core/src/main/java/org/apache/maven/lifecycle/mapping/DefaultLifecycleMapping.java
@@ -59,7 +59,7 @@ public DefaultLifecycleMapping(final List<Lifecycle> lifecycles) {
     /**
      * Plexus: Populates the lifecycle map from the injected list of lifecycle mappings (if not already done).
      */
-    private void initLifecycleMap() {
+    private synchronized void initLifecycleMap() {
         if (lifecycleMap == null) {
             lifecycleMap = new HashMap<>();