From c5b82d48dd08b779ebde3dca6e49ad28d44e41c3 Mon Sep 17 00:00:00 2001
From: Marcin Grzejszczak <marcin@grzejszczak.pl>
Date: Fri, 9 Feb 2024 13:27:39 +0100
Subject: [PATCH] Don't rethrow ClosedSenderException; fixes gh-2199

---
 .../sleuth/autoconfig/zipkin2/ZipkinAutoConfiguration.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/spring-cloud-sleuth-autoconfigure/src/main/java/org/springframework/cloud/sleuth/autoconfig/zipkin2/ZipkinAutoConfiguration.java b/spring-cloud-sleuth-autoconfigure/src/main/java/org/springframework/cloud/sleuth/autoconfig/zipkin2/ZipkinAutoConfiguration.java
index 8de82914e..6c7379a67 100644
--- a/spring-cloud-sleuth-autoconfigure/src/main/java/org/springframework/cloud/sleuth/autoconfig/zipkin2/ZipkinAutoConfiguration.java
+++ b/spring-cloud-sleuth-autoconfigure/src/main/java/org/springframework/cloud/sleuth/autoconfig/zipkin2/ZipkinAutoConfiguration.java
@@ -28,6 +28,7 @@ import org.apache.commons.logging.LogFactory;
 import zipkin2.CheckResult;
 import zipkin2.Span;
 import zipkin2.reporter.AsyncReporter;
+import zipkin2.reporter.ClosedSenderException;
 import zipkin2.reporter.InMemoryReporterMetrics;
 import zipkin2.reporter.Reporter;
 import zipkin2.reporter.ReporterMetrics;
@@ -143,6 +144,9 @@ public class ZipkinAutoConfiguration {
 					log.debug("Flushing done - closing the reporter");
 					asyncReporter.close();
 				}
+				catch (ClosedSenderException ex) {
+					log.debug("Sender already closed", ex);
+				}
 				catch (Exception e) {
 					throw new IllegalStateException(e);
 				}