From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Wed, 18 Aug 2021 12:02:02 -0500
Subject: [PATCH] Set AsyncAppender dispatch thread to be a daemon thread

This diff will be included in the not yet released Log4j 2.14.2. When Log4j 2.14.2 is released this patch should be dropped in favor of bumping Log4j.

diff --git a/src/main/java/org/apache/logging/log4j/core/appender/AsyncAppenderEventDispatcher.java b/src/main/java/org/apache/logging/log4j/core/appender/AsyncAppenderEventDispatcher.java
index a01f68db840b6e953fa6908ad10cd25744be6471..d406c3d38059b1e4012ca5ebd938b8a6f8ce152f 100644
--- a/src/main/java/org/apache/logging/log4j/core/appender/AsyncAppenderEventDispatcher.java
+++ b/src/main/java/org/apache/logging/log4j/core/appender/AsyncAppenderEventDispatcher.java
@@ -50,6 +50,7 @@ class AsyncAppenderEventDispatcher extends Log4jThread {
             final List<AppenderControl> appenders,
             final BlockingQueue<LogEvent> queue) {
         super("AsyncAppenderEventDispatcher-" + THREAD_COUNTER.incrementAndGet() + "-" + name);
+        this.setDaemon(true); // Paper - Backport change from not yet released Log4j 2.14.2
         this.errorAppender = errorAppender;
         this.appenders = appenders;
         this.queue = queue;