From 281f4d4ceb395e9e352c65e41edb44f5c71745d8 Mon Sep 17 00:00:00 2001
From: Andy Wilkinson <awilkinson@pivotal.io>
Date: Wed, 1 Apr 2020 11:10:16 +0100
Subject: [PATCH] Clear system property set by log file registration

Closes gh-20790
---
 .../logging/LoggingApplicationListenerIntegrationTests.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/logging/LoggingApplicationListenerIntegrationTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/logging/LoggingApplicationListenerIntegrationTests.java
index 4f7e5eb3413..24cb44f5df5 100644
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/logging/LoggingApplicationListenerIntegrationTests.java
+++ b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/logging/LoggingApplicationListenerIntegrationTests.java
@@ -30,6 +30,7 @@ import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.boot.logging.LogFile;
 import org.springframework.boot.logging.LoggingSystem;
+import org.springframework.boot.logging.LoggingSystemProperties;
 import org.springframework.boot.testsupport.system.CapturedOutput;
 import org.springframework.boot.testsupport.system.OutputCaptureExtension;
 import org.springframework.context.ApplicationListener;
@@ -64,6 +65,9 @@ class LoggingApplicationListenerIntegrationTests {
 			assertThat(service.logFile).isNotNull();
 			assertThat(service.logFile.toString()).isEqualTo(logFile);
 		}
+		finally {
+			System.clearProperty(LoggingSystemProperties.LOG_FILE);
+		}
 	}
 
 	@Test