From 8c823ce518c9c3b36d9e355d495836174686da3c Mon Sep 17 00:00:00 2001
From: "John Y. Pazekha" <neboskreb@narod.ru>
Date: Fri, 25 Apr 2025 03:40:39 +0200
Subject: [PATCH] A way to disable the optimization for filling the stack
 traces

---
 .../log4j/util/PrivateSecurityManagerStackTraceUtil.java | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/log4j-api/src/main/java/org/apache/logging/log4j/util/PrivateSecurityManagerStackTraceUtil.java b/log4j-api/src/main/java/org/apache/logging/log4j/util/PrivateSecurityManagerStackTraceUtil.java
index ec2b5cf1e4d..4579f9e65b7 100644
--- a/log4j-api/src/main/java/org/apache/logging/log4j/util/PrivateSecurityManagerStackTraceUtil.java
+++ b/log4j-api/src/main/java/org/apache/logging/log4j/util/PrivateSecurityManagerStackTraceUtil.java
@@ -24,9 +24,9 @@
  * Internal utility to share a fast implementation of {@code #getCurrentStackTrace()}
  * with the java 9 implementation of {@link StackLocator}.
  */
-final class PrivateSecurityManagerStackTraceUtil {
+public final class PrivateSecurityManagerStackTraceUtil {
 
-    private static final PrivateSecurityManager SECURITY_MANAGER;
+    private static PrivateSecurityManager SECURITY_MANAGER;
 
     static {
         PrivateSecurityManager psm;
@@ -51,6 +51,11 @@ static boolean isEnabled() {
         return SECURITY_MANAGER != null;
     }
 
+    /** Disable the fast stack traces, if already enabled. */
+    public static void disable() {
+        SECURITY_MANAGER = null;
+    }
+
     /**
      * Returns the current execution stack as a Deque of classes.
      * <p>