--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/gc/gctests/WeakReference/WeakReferenceTest/WeakReferenceTest.java	Thu May 17 14:52:47 2018 -0700
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2004, 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 gc.gctests.WeakReference;
+
+import java.util.Random;
+import java.util.ArrayList;
+import java.lang.ref.WeakReference;
+import nsk.share.TestFailure;
+import nsk.share.gc.GC;
+import nsk.share.gc.GCTestBase;
+
+/**
+ * Original description from JRockit test:
+ *
+ * Tests for the WeakReference handling in JRockit.
+ *
+ * This test must be run with a mx value set, as well as with
+ * -XXfullsystemgc, to ensure Runtime.maxMemory() doesn't return 0
+ * and that System.gc() gets run when called from Java.
+ */
+public class WeakReferenceTest extends GCTestBase {
+
+    /**
+     * Test that all WeakReferences has been cleared after
+     * the GC has run. This test should not throw an OOME
+     * during the test execution.
+     *
+     */
+    @Override
+    public void run() {
+        long seed;
+        int minSize;
+        int maxSize;
+        double memPercentToFill;
+        long totalMemAlloced = 0;
+        long memToAlloc = 0;
+        Runtime r = Runtime.getRuntime();
+
+        seed = runParams.getSeed();
+        minSize = 2048;
+        maxSize = 32768;
+
+        memPercentToFill = 0.45;
+
+        memToAlloc = (long) (r.maxMemory() * memPercentToFill);
+
+        Random rndGenerator = new Random(seed);
+        long multiplier = maxSize - minSize;
+        ArrayList arrWeakRefs = new ArrayList();
+
+        try {
+            while (totalMemAlloced < memToAlloc) {
+                int allocationSize = ((int) (rndGenerator.nextDouble()
+                        * multiplier)) + minSize;
+                byte[] tmp = new byte[allocationSize];
+
+                arrWeakRefs.add(new WeakReference(tmp));
+                totalMemAlloced += allocationSize;
+
+                // Make sure the temporary object is dereferenced
+                tmp = null;
+            }
+
+            System.gc();
+
+            long numberOfNotNulledObjects = 0;
+
+            for (int i = 0; i < arrWeakRefs.size(); i++) {
+                WeakReference wr = (WeakReference) arrWeakRefs.get(i);
+                Object o = wr.get();
+
+                if (o != null) {
+                    numberOfNotNulledObjects++;
+                }
+            }
+
+            if (numberOfNotNulledObjects > 0) {
+                throw new TestFailure(numberOfNotNulledObjects + " out of "
+                        + arrWeakRefs.size() + " WeakReferences was not "
+                        + "null after the GC had run");
+            }
+
+            log.info("All WeakReferences was cleared after the "
+                    + "GC had run");
+        } catch (OutOfMemoryError oome) {
+            throw new TestFailure("OutOfMemoryException was thrown. This should "
+                    + "not happen during the execution of this test.");
+        } finally {
+            arrWeakRefs = null;
+        }
+    }
+
+    public static void main(String[] args) {
+        GC.runTest(new WeakReferenceTest(), args);
+    }
+}