--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/util/logging/TestMainAppContext.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+import java.util.logging.Logger;
+import sun.awt.AppContext;
+import sun.awt.SunToolkit;
+
+
+/**
+ * @test
+ * @bug 8026404
+ * @summary checks that calling getLogger() from a Thread whose ThreadGroup is
+ *          a child of the main root group doesn't throw an exception.
+ * @modules java.desktop/sun.awt
+ *          java.logging
+ * @build TestMainAppContext
+ * @run main/othervm TestMainAppContext
+ * @author danielfuchs
+ */
+public class TestMainAppContext {
+
+    static volatile Throwable thrown = null;
+
+    public static void main(String... args) throws Exception {
+        ThreadGroup rootTG = Thread.currentThread().getThreadGroup();
+        while (rootTG.getParent() != null) {
+            rootTG = rootTG.getParent();
+        }
+
+        ThreadGroup tg = new ThreadGroup(rootTG, "FakeApplet");
+        final Thread t1 = new Thread(tg, "createNewAppContext") {
+            @Override
+            public void run() {
+                try {
+                    AppContext context = SunToolkit.createNewAppContext();
+                } catch(Throwable t) {
+                    thrown = t;
+                }
+            }
+        };
+        t1.start();
+        t1.join();
+        if (thrown != null) {
+            throw new RuntimeException("Unexpected exception: " + thrown, thrown);
+        }
+        Thread t2 = new Thread(tg, "BugDetector") {
+
+            @Override
+            public void run() {
+                try {
+                    Logger.getLogger("foo").info("Done");
+                } catch (Throwable x) {
+                    thrown = x;
+                }
+            }
+
+        };
+
+        System.setSecurityManager(new SecurityManager());
+        t2.start();
+        t2.join();
+        if (thrown != null) {
+            throw new RuntimeException("Test failed: " + thrown, thrown);
+        }
+
+    }
+
+}