Clean connector tracker after each access block to stop memory leaks (#9331)

Immediately clean connectors which the client side does not know about

Fixes #9303

1 files changed, 7 insertions, 3 deletions

diff --git a/uitest/src/test/java/com/vaadin/tests/application/MissingHierarchyDetectionTest.java b/uitest/src/test/java/com/vaadin/tests/application/MissingHierarchyDetectionTest.java
index ad44fe6f89..c047c9a12b 100644
--- a/uitest/src/test/java/com/vaadin/tests/application/MissingHierarchyDetectionTest.java
+++ b/uitest/src/test/java/com/vaadin/tests/application/MissingHierarchyDetectionTest.java
@@ -41,10 +41,14 @@ public class MissingHierarchyDetectionTest extends SingleBrowserTest {
         assertNoSystemNotifications();
         Assert.assertTrue(isElementPresent(LabelElement.class));
 
-        ButtonElement toggleInproperly = $(ButtonElement.class)
+        ButtonElement toggleImproperly = $(ButtonElement.class)
                 .caption("Toggle improperly").first();
-        toggleInproperly.click();
+        toggleImproperly.click();
 
-        assertSystemNotification();
+        $(ButtonElement.class).caption("Check for errors").first().click();
+        Assert.assertTrue(
+                "No error was logged for the missing hierarchy change event",
+                getLogRow(0).contains(
+                        "is no longer visible to the client, but no corresponding hierarchy change was sent."));
     }
 }