diff --git a/spring-web/src/test/java/org/springframework/web/server/session/InMemoryWebSessionStoreTests.java b/spring-web/src/test/java/org/springframework/web/server/session/InMemoryWebSessionStoreTests.java
index 726b3a2e530..7847cc3537c 100644
--- a/spring-web/src/test/java/org/springframework/web/server/session/InMemoryWebSessionStoreTests.java
+++ b/spring-web/src/test/java/org/springframework/web/server/session/InMemoryWebSessionStoreTests.java
@@ -53,7 +53,8 @@ class InMemoryWebSessionStoreTests {
 	void startsSessionImplicitly() {
 		WebSession session = this.store.createWebSession().block();
 		assertThat(session).isNotNull();
-		session.start();
+		// We intentionally do not invoke start().
+		// session.start();
 		session.getAttributes().put("foo", "bar");
 		assertThat(session.isStarted()).isTrue();
 	}