--- /dev/null	2020-03-26 16:02:17.000000000 -0700
+++ new/test/hotspot/jtreg/runtime/HiddenClasses/DefineHiddenClass.java	2020-03-26 16:02:16.000000000 -0700
@@ -0,0 +1,97 @@
+/*
+ * 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
+ * @modules java.base/jdk.internal.misc
+ * @library /test/lib
+ * @build jdk.test.lib.JDKToolLauncher
+ *        jdk.test.lib.process.ProcessTools
+ *        jdk.test.lib.Utils
+ * @run main/othervm -Xverify:remote DefineHiddenClass
+ */
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodHandles.Lookup;
+import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import jdk.internal.misc.Unsafe;
+
+import jdk.test.lib.JDKToolLauncher;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.Utils;
+
+/* package-private */ interface Test {
+  void test();
+}
+
+
+public class DefineHiddenClass {
+
+    static final Class<?> klass = DefineHiddenClass.class;
+    static final Path SRC_DIR = Paths.get(Utils.TEST_SRC, "hidden");
+    static final Path CLASSES_DIR = Paths.get(Utils.TEST_CLASSES, "hidden");
+
+    static void compileSources(String sourceFile) throws Throwable {
+        JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("javac");
+        launcher.addToolArg("-cp")
+                .addToolArg(Utils.TEST_CLASSES.toString())
+                .addToolArg("-d")
+                .addToolArg(CLASSES_DIR.toString())
+            .addToolArg(Paths.get(SRC_DIR.toString(), sourceFile).toString());
+
+        int exitCode = ProcessTools.executeCommand(launcher.getCommand())
+                                   .getExitValue();
+        if (exitCode != 0) {
+            throw new RuntimeException("Compilation of the test failed. "
+                    + "Unexpected exit code: " + exitCode);
+        }
+    }
+
+    static byte[] readClassFile(String classFileName) throws Exception {
+        File classFile = new File(CLASSES_DIR + File.separator + classFileName);
+        try (FileInputStream in = new FileInputStream(classFile);
+             ByteArrayOutputStream out = new ByteArrayOutputStream())
+        {
+            int b;
+            while ((b = in.read()) != -1) {
+                out.write(b);
+            }
+            return out.toByteArray();
+        }
+    }
+
+    public static void main(String[] args) throws Throwable {
+        compileSources("NameInString.java");
+        Lookup lookup = MethodHandles.lookup();
+        byte[] bytes = readClassFile("NameInString.class");
+        Class<?> c = lookup.defineHiddenClass(bytes, true, NESTMATE).lookupClass();
+        Test t = (Test) c.newInstance();
+        t.test();
+    }
+
+}