8304696: Duplicate class names in dynamicArchive tests can lead to test failure

Backport-of: b2240bf870cd57983fda0bc3b0e205acfdd1fd2a

Author: GoeLin

test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/LinkClassTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2020, 2023, 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
@@ -31,7 +31,7 @@
  *          /test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/test-classes
  * @build LinkClassApp
  * @build jdk.test.whitebox.WhiteBox
- * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar link_class_app.jar LinkClassApp Parent Child Parent2 Child2 MyShutdown
+ * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar link_class_app.jar LinkClassApp Parent Child Parent2 Child2 LinkClassApp$MyShutdown
  * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. LinkClassTest
  */

test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/test-classes/LinkClassApp.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2020, 2023, 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
@@ -46,13 +46,13 @@ class Child2 extends Parent2 {
     int get() {return 4;}
 }
 
-class MyShutdown extends Thread{
-    public void run(){
-        System.out.println("shut down hook invoked...");
+class LinkClassApp {
+    static class MyShutdown extends Thread{
+        public void run(){
+            System.out.println("shut down hook invoked...");
+        }
     }
-}
 
-class LinkClassApp {
     public static void main(String args[]) {
         Runtime r=Runtime.getRuntime();
         r.addShutdownHook(new MyShutdown());