Adapt Test_org_eclipse_swt_events_KeyEvent for Windows Server 2025 #2516

This is WiP to analyze the issue with the
Test_org_eclipse_swt_events_KeyEvent tests on Windows Server 2025.

Author: HeikoKlare

tests/org.eclipse.swt.tests.win32/JUnit Tests/org/eclipse/swt/tests/win32/KeyboardLayoutTest.java

@@ -249,14 +249,20 @@ public void setUp(TestInfo testInfo) {
 
 		shell.setSize(100, 100);
 		shell.open();
+		shell.forceActive();
 		shell.forceFocus();
+		processEvents();
 	}
 
 	@AfterEach
-	public void tearDown() {
+	public void tearDown() throws InterruptedException {
 		if (shell != null) {
 			shell.dispose();
 		}
+		for (int i = 0; i < 10; i++) {
+			processEvents();
+			Thread.sleep(50);
+		}
 		if (display != null) {
 			display.dispose();
 		}
@@ -360,6 +366,11 @@ protected void ensureShellFocused() {
 		// Note that `Shell.isFocusControl()` still returns `true` even if a
 		// different app is focused
 		if (shell.handle != OS.GetForegroundWindow()) {
+			System.out.println("handle of current shell: " + OS.GetForegroundWindow());
+			System.out.println("handle of tracked shell: " + shell.handle);
+			for (Shell shell : display.getShells()) {
+				System.out.println(shell.handle + ": " + shell.toString());
+			}
 			fail("Test Shell lost focus (did you use keyboard/mouse while the test was running?)");
 		}
 	}
@@ -501,6 +512,7 @@ protected void onKeyError(AssertionError error) {
 	}
 
 	protected void expectKeyEvents(String testName, Runnable runnable, Event... expectEvents) {
+		shell.forceActive();
 		events.clear();
 		runnable.run();