From 3b20d40928af4bd3ca2e80aeec72cbd8f2facd5b Mon Sep 17 00:00:00 2001
From: Stuart Douglas <stuart.w.douglas@gmail.com>
Date: Wed, 9 Jun 2021 21:00:34 +1000
Subject: [PATCH] Prevent potential deadlock

Fixes #17793
---
 .../deployment/dev/testing/TestSupport.java        | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/core/deployment/src/main/java/io/quarkus/deployment/dev/testing/TestSupport.java b/core/deployment/src/main/java/io/quarkus/deployment/dev/testing/TestSupport.java
index 7dd54e179f54d..84c5b9cca19d2 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/dev/testing/TestSupport.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/dev/testing/TestSupport.java
@@ -194,15 +194,17 @@ public TestRunResults getTestRunResults() {
         return testRunResults;
     }
 
-    public synchronized void pause() {
-        if (started) {
-            testRunner.pause();
+    public void pause() {
+        TestRunner tr = this.testRunner;
+        if (tr != null) {
+            tr.pause();
         }
     }
 
-    public synchronized void resume() {
-        if (started) {
-            testRunner.resume();
+    public void resume() {
+        TestRunner tr = this.testRunner;
+        if (tr != null) {
+            tr.resume();
         }
     }