Test for GTK4 crashes when creating and closing many shells

tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/AllNonBrowserTests.java

@@ -39,6 +39,7 @@
 		// Rest of tests alphabetically
 		DPIUtilTests.class, //
 		JSVGRasterizerTest.class, //
+		OpenShellManyManyTimesTest.class, //
 		Test_org_eclipse_swt_accessibility_Accessible.class, //
 		Test_org_eclipse_swt_accessibility_AccessibleControlEvent.class, //
 		Test_org_eclipse_swt_accessibility_AccessibleEvent.class, //

tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/OpenShellManyManyTimesTest.java

@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (c) 2025 Kichwa Coders Canada, Inc.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package org.eclipse.swt.tests.junit;
+
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+import org.junit.jupiter.api.RepeatedTest;
+
+
+public class OpenShellManyManyTimesTest {
+
+	@RepeatedTest(value = 1000)
+	public void test_OpenShell() {
+		Display display = Display.getCurrent();
+		if (display == null) {
+			display = Display.getDefault();
+		}
+
+		Shell shell = new Shell(display);
+		try {
+		shell.open();
+		shell.setFocus();
+		SwtTestUtil.processEvents();
+		} finally {
+			shell.dispose();
+		}
+	}
+}