8338668: Test javax/swing/JFileChooser/8080628/bug8080628.java doesn't test for GTK L&F

Backport-of: b8e8e965e541881605f9dbcd4d9871d4952b9232

Author: GoeLin

test/jdk/javax/swing/JFileChooser/8080628/bug8080628.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2024, 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
@@ -33,7 +33,17 @@
  * @test
  * @bug 8080628
  * @summary No mnemonics on Open and Save buttons in JFileChooser.
- * @author Alexey Ivanov
+ * @requires os.family != "linux"
+ * @modules java.desktop/sun.swing
+ * @run main bug8080628
+ */
+
+/*
+ * @test
+ * @bug 8080628
+ * @key headful
+ * @summary No mnemonics on Open and Save buttons in JFileChooser.
+ * @requires os.family == "linux"
  * @modules java.desktop/sun.swing
  * @run main bug8080628
  */
@@ -81,8 +91,10 @@ private static void runTest() {
                 try {
                     UIManager.setLookAndFeel(info.getClassName());
                 } catch (final UnsupportedLookAndFeelException ignored) {
+                    System.out.println("Unsupported L&F: " + info.getClassName());
                     continue;
                 }
+                System.out.println("Testing L&F: " + info.getClassName());
 
                 for (Locale locale : LOCALES) {
                     for (String key : MNEMONIC_KEYS) {