commit 0688f184f55cf4e038ed9c34c6a68c364d592c58
Author: Richard Reingruber <richard.reingruber@sap.com>
Date:   Fri Jul 11 09:10:01 2025 +0200

    Reproduce OOM with duplicate test case

diff --git a/test/hotspot/jtreg/serviceability/HeapDump/UnmountedVThreadNativeMethodAtTop.java b/test/hotspot/jtreg/serviceability/HeapDump/UnmountedVThreadNativeMethodAtTop.java
index 2e3925a5ca7..0c883655bf5 100644
--- a/test/hotspot/jtreg/serviceability/HeapDump/UnmountedVThreadNativeMethodAtTop.java
+++ b/test/hotspot/jtreg/serviceability/HeapDump/UnmountedVThreadNativeMethodAtTop.java
@@ -122,6 +122,41 @@ void VThreadBlockedAtOjectWait() throws Exception {
         }
     }
 
+    /**
+     * Duplicate of VThreadBlockedAtOjectWait supposed to throw OOM
+     */
+    @Test
+    void VThreadBlockedAtOjectWait_DUP_FOR_OOM() throws Exception {
+        var lock = this;
+        var started = new CountDownLatch(1);
+        var vthread = Thread.ofVirtual().unstarted(() -> {
+            started.countDown();
+            try {
+                synchronized (lock) {
+                    while (!done) {
+                        lock.wait();
+                    }
+                }
+            } catch (InterruptedException e) { }
+        });
+        try {
+            vthread.start();
+
+            // wait for thread to start and wait
+            started.await();
+            await(vthread, Thread.State.WAITING);
+
+            Path dumpFile = dumpHeap();
+            verifyHeapDump(dumpFile);
+        } finally {
+            synchronized (lock) {
+                done = true;
+                lock.notify();
+            }
+            vthread.join();
+        }
+    }
+
     private Path dumpHeap() throws Exception {
         Path df = Files.createTempFile(Path.of("."), "dump", ".hprof");
         Files.delete(df);