Set a dummy VaadinSession in AddRemoveSubWindow test to fix spurious failure

1 files changed, 2 insertions, 0 deletions

diff --git a/server/tests/src/com/vaadin/tests/server/component/window/AddRemoveSubWindow.java b/server/tests/src/com/vaadin/tests/server/component/window/AddRemoveSubWindow.java
index 9ee4ffe6e7..679c288586 100644
--- a/server/tests/src/com/vaadin/tests/server/component/window/AddRemoveSubWindow.java
+++ b/server/tests/src/com/vaadin/tests/server/component/window/AddRemoveSubWindow.java
@@ -7,6 +7,7 @@ import static org.junit.Assert.assertTrue;
 import org.junit.Test;
 
 import com.vaadin.LegacyApplication;
+import com.vaadin.server.VaadinSession;
 import com.vaadin.ui.UI;
 import com.vaadin.ui.UI.LegacyWindow;
 import com.vaadin.ui.Window;
@@ -24,6 +25,7 @@ public class AddRemoveSubWindow {
 
     @Test
     public void addSubWindow() {
+        VaadinSession.setCurrent(new VaadinSession());
         TestApp app = new TestApp();
         app.init();
         Window subWindow = new Window("Sub window");