From 962ad81b39a3f5c604e5e719fb78131a51aec29b Mon Sep 17 00:00:00 2001
From: Jesse Glick <jglick@cloudbees.com>
Date: Wed, 14 Apr 2021 14:36:50 -0400
Subject: [PATCH] Do not periodically JenkinsRule.dumpThreads when debugging

---
 src/main/java/org/jvnet/hudson/test/RealJenkinsRule.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/jvnet/hudson/test/RealJenkinsRule.java b/src/main/java/org/jvnet/hudson/test/RealJenkinsRule.java
index 298bdfdd3..88bcfce69 100644
--- a/src/main/java/org/jvnet/hudson/test/RealJenkinsRule.java
+++ b/src/main/java/org/jvnet/hudson/test/RealJenkinsRule.java
@@ -506,7 +506,9 @@ public static void register() throws Exception {
             });
             JenkinsRule._configureUpdateCenter(j);
             System.err.println("RealJenkinsRule ready");
-            Timer.get().scheduleAtFixedRate(JenkinsRule::dumpThreads, 2, 2, TimeUnit.MINUTES);
+            if (!new DisableOnDebug(null).isDebugging()) {
+                Timer.get().scheduleAtFixedRate(JenkinsRule::dumpThreads, 2, 2, TimeUnit.MINUTES);
+            }
         }
         @Override public String getUrlName() {
             return "RealJenkinsRule";