--- /dev/null	2020-03-26 16:02:37.000000000 -0700
+++ new/test/hotspot/jtreg/runtime/HiddenClasses/NestedHidden.java	2020-03-26 16:02:36.000000000 -0700
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2020, 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
+ * @summary Creates a hidden class inside of a hidden class.
+ * @library /test/lib
+ * @modules java.compiler
+ *          java.management
+ * @run main p.NestedHidden
+ */
+
+package p;
+
+import java.lang.*;
+
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodHandles.Lookup;
+import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*;
+import jdk.test.lib.compiler.InMemoryJavaCompiler;
+
+
+// Test that a hidden class can define its own hidden class by calling
+// lookup.defineHiddenClass().
+public class NestedHidden {
+    static byte klassbuf[] = InMemoryJavaCompiler.compile("p.TestClass",
+        "package p; " +
+        "public class TestClass { " +
+        "    public static void concat(String one, String two) throws Throwable { " +
+        "        System.out.println(one + two);" +
+        " } } ");
+
+    public static void main(String args[]) throws Exception {
+        // The hidden class calls lookup.defineHiddenClass(), creating a nested hidden class.
+        byte klassbuf2[] = InMemoryJavaCompiler.compile("p.TestClass2",
+            "package p; " +
+            "import java.lang.invoke.MethodHandles; " +
+            "import java.lang.invoke.MethodHandles.Lookup; " +
+            "import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*; " +
+            "public class TestClass2 { " +
+            "    public static void doit() throws Throwable { " +
+            "        Lookup lookup = MethodHandles.lookup(); " +
+            "        Class<?> klass2 = lookup.defineHiddenClass(p.NestedHidden.klassbuf, true, NESTMATE).lookupClass(); " +
+            "        Class[] dArgs = new Class[2]; " +
+            "        dArgs[0] = String.class; " +
+            "        dArgs[1] = String.class; " +
+            "        try { " +
+            "            klass2.getMethod(\"concat\", dArgs).invoke(null, \"CC\", \"DD\"); " +
+            "        } catch (Throwable ex) { " +
+            "            throw new RuntimeException(\"Exception: \" + ex.toString()); " +
+            "        } " +
+            "} } ");
+
+        Lookup lookup = MethodHandles.lookup();
+        Class<?> klass2 = lookup.defineHiddenClass(klassbuf2, true, NESTMATE).lookupClass();
+        klass2.getMethod("doit").invoke(null);
+    }
+}