diff --git a/spring-integration-test-support/src/main/java/org/springframework/integration/test/mail/TestMailServer.java b/spring-integration-test-support/src/main/java/org/springframework/integration/test/mail/TestMailServer.java
index 4e82605d45..efadf92110 100644
--- a/spring-integration-test-support/src/main/java/org/springframework/integration/test/mail/TestMailServer.java
+++ b/spring-integration-test-support/src/main/java/org/springframework/integration/test/mail/TestMailServer.java
@@ -257,7 +257,7 @@ public final class TestMailServer {
 				super(socket);
 			}
 
-			@Override
+			@Override // NOSONAR
 			void doRun() {
 				try {
 					write("* OK IMAP4rev1 Service Ready");