From 4725e758942ad06c066963d3404a90c42ecbe476 Mon Sep 17 00:00:00 2001
From: lihongyi <642826683@qq.com>
Date: Sun, 2 Aug 2026 11:31:37 +0800
Subject: [PATCH] Make default value of interruptThreadThreshold explicit

The interruptThreadThreshold field relied on the Java default of 0
which disables thread interruption. The Javadoc and valve
documentation both state the default is -1. Make the default
explicit (-1) so the code matches the documented behaviour.
---
 java/org/apache/catalina/valves/StuckThreadDetectionValve.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/java/org/apache/catalina/valves/StuckThreadDetectionValve.java b/java/org/apache/catalina/valves/StuckThreadDetectionValve.java
index 9134fda5a834..9302697de5ba 100644
--- a/java/org/apache/catalina/valves/StuckThreadDetectionValve.java
+++ b/java/org/apache/catalina/valves/StuckThreadDetectionValve.java
@@ -71,7 +71,7 @@ public class StuckThreadDetectionValve extends ValveBase {
     /**
      * In seconds. Default is -1 to disable interruption.
      */
-    private int interruptThreadThreshold;
+    private int interruptThreadThreshold = -1;
 
     /**
      * The only references we keep to actual running Thread objects are in this Map (which is automatically cleaned in