--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/lang/Thread/CountStackFrames.java	Thu Oct 31 16:45:58 2019 +0000
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2019, 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.
+ */
+
+/* @test
+ * @bug 8205132
+ * @summary Test Thread.countStackFrames()
+ * @run testng CountStackFrames
+ */
+
+import org.testng.annotations.Test;
+
+public class CountStackFrames {
+
+    // current thread
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void testCurrentThread() {
+        Thread.currentThread().countStackFrames();
+    }
+
+    // unstarted thread
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void testUnstartedThread() {
+        Thread thread = new Thread(() -> { });
+        thread.countStackFrames();
+    }
+
+    // terminated thread
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void testTerminatedThread() throws Exception {
+        Thread thread = new Thread(() -> { });
+        thread.start();
+        thread.join();
+        thread.countStackFrames();
+    }
+
+}