--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/gc/memory/UniThread/Circular1/Circular1.java	Thu May 17 14:52:47 2018 -0700
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2002, 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.
+ */
+
+
+/*
+ * @test
+ * @key stress gc
+ *
+ * @summary converted from VM Testbase gc/memory/UniThread/Circular1.
+ * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
+ *
+ * @library /vmTestbase
+ *          /test/lib
+ * @run driver jdk.test.lib.FileInstaller . .
+ * @run main/othervm gc.memory.UniThread.Circular1.Circular1 -iterations 5
+ */
+
+package gc.memory.UniThread.Circular1;
+
+import nsk.share.gc.*;
+import nsk.share.test.Stresser;
+
+/**
+ * Test GC collection of circular linked lists.
+ *
+ * This test simply creates a series of circulary
+ * linked memory objects which should be able to be
+ * GC'd.
+ *
+ * In this test the size of one object is small, the number
+ * of objects in one list is small and the number
+ * of lists is large.
+ */
+public class Circular1 extends GCTestBase {
+        private int arraySize;
+        private int objectSize;
+        private int circularitySize;
+        private MemoryObject memoryArray[];
+
+        public Circular1() {
+                this(100, 5);
+        }
+
+        public Circular1(int objectSize, int circularitySize) {
+                this.objectSize = objectSize;
+                this.circularitySize = circularitySize;
+        }
+
+        public void run() {
+                arraySize = Memory.getArrayLength(runParams.getTestMemory(), Memory.getListSize(circularitySize, objectSize));
+                Stresser stresser = new Stresser(runParams.getStressOptions());
+                log.debug("Array size: " + arraySize);
+                memoryArray = new MemoryObject[arraySize];
+                stresser.start(runParams.getIterations());
+                try {
+                        while (stresser.iteration()) {
+                                log.debug(Runtime.getRuntime().freeMemory());
+                                for (int i = 0; i < arraySize && stresser.continueExecution(); i ++)
+                                        memoryArray[i] = Memory.makeCircularList(circularitySize, objectSize);
+                        }
+                } finally {
+                        stresser.finish();
+                }
+                System.out.println("Test passed.");
+        }
+
+        public static void main(String args[]) {
+                GC.runTest(new Circular1(), args);
+        }
+}