Backport d1860370635e1c96a9b6c497861e5573c23dd281

Author: duke

test/jdk/com/sun/jdi/TwoThreadsTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2025, 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
@@ -55,6 +55,13 @@ public static void main(String[] args) {
 
         t1.start();
         t2.start();
+        // The threads might be virtual and daemon, so wait until completion.
+        try {
+            t1.join();
+            t2.join();
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
     }