--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/sysdict/share/ChainTest.java	Wed May 16 16:43:11 2018 -0700
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2010, 2018, 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.
+ */
+
+package nsk.sysdict.share;
+
+import java.lang.reflect.Field;
+import nsk.share.Failure;
+import nsk.share.TestFailure;
+import nsk.share.sysdict.ClassLoadersChain;
+import nsk.share.test.Tests;
+
+/**
+ * This is a main class for all chain tests.
+ */
+public class ChainTest extends SysDictTest {
+
+    public ChainTest(String[] args) {
+        parseArgs(args);
+    }
+
+    public static void main(String args[]) {
+        Tests.runTest(new ChainTest(args), args);
+    }
+    private static final int NxM_FACTOR = 450;
+    private int classesHeight;
+    private int loadersHeight;
+    String[] classNames;
+
+    @Override
+    protected void parseArgs(String args[]) {
+        super.parseArgs(args);
+        boolean isLoaderHeightDefault = true;
+        boolean isHeightDefault = true;
+        for (int i = 0; i < args.length; i++) {
+            if (args[i].equals("-classloaderHeight")) {
+                loadersHeight = Integer.parseInt(args[i + 1]);
+                if (loadersHeight > 0) {
+                    isLoaderHeightDefault = false;
+                }
+            }
+            if (args[i].equals("-height")) {
+                classesHeight = Integer.parseInt(args[i + 1]);
+                if (classesHeight > 0) {
+                    isHeightDefault = false;
+                }
+            }
+        }
+
+        Class info;
+        try {
+            if (useFats) {
+                info = createJarLoader().loadClass(PACKAGE_PREFIX + "FatsInfo");
+            } else {
+                info = createJarLoader().loadClass(PACKAGE_PREFIX + "LeansInfo");
+            }
+            System.out.println("name=" + info.getName());
+            for (Field field : info.getDeclaredFields()) {
+                System.err.println("field = " + field.getName());
+            }
+            if (isHeightDefault) {
+                classesHeight = info.getField("HEIGHT").getInt(null);
+            }
+
+
+            if (isLoaderHeightDefault) {
+                loadersHeight = NxM_FACTOR / classesHeight;
+            }
+
+            if (loadersHeight * classesHeight != NxM_FACTOR) {
+                throw new Failure("classes height must divide " + NxM_FACTOR);
+            }
+
+            if (loadersHeight == 0) {
+                throw new Failure("loaders height should be positive");
+            }
+            if (classesHeight == 0) {
+                throw new Failure("classes height should be positive");
+            }
+            classNames = new String[classesHeight];
+            for (int i = 0; i < classesHeight; i++) {
+                classNames[i] = PACKAGE_PREFIX + info.getField("rootName").get(null)
+                        + ((String[]) info.getField("nodeNames").get(null))[i];
+            }
+            if (classNames == null || classNames.length == 0) {
+                throw new TestFailure("No classes names for loading");
+            }
+            System.out.println("The classHeight = " + classesHeight + " the loadersHeight = " + loadersHeight);
+        } catch (Exception e) {
+            throw new TestFailure("Can't initialize test correctly", e);
+        }
+
+    }
+
+    @Override
+    String[] getClassNames() {
+        return classNames;
+    }
+
+    @Override
+    ClassLoader[] createLoaders() {
+        ClassLoader loaders[] = new ClassLoader[loadersHeight];
+        ClassLoader jarLoader = createJarLoader();
+        ClassLoadersChain loadersChain =
+                new ClassLoadersChain(jarLoader, loadersHeight);
+        // direct ordering: root loader first
+        for (int i = 0; i < loadersHeight; i++) {
+            loaders[i] = loadersChain.getLoader(loadersHeight - 1 - i);
+        }
+        return loaders;
+    }
+}