--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/gc/epsilon/TestRefArrays.java	Mon Nov 06 18:53:38 2017 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
+ * 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 TestRefArrays
+ * @library /test/lib
+ * @summary Epsilon is able to allocate arrays, and does not corrupt their state
+ *
+ * @run main/othervm -Xmx1g                                        -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xint                                  -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xbatch -Xcomp                         -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=1 -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=4 -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ *
+ * @run main/othervm -Xmx1g                                        -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xint                                  -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xbatch -Xcomp                         -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=1 -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=4 -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays
+ */
+
+import java.util.Random;
+
+public class TestRefArrays extends AbstractEpsilonTest {
+
+  static long SEED = Long.getLong("seed", System.nanoTime());
+  static int COUNT = Integer.getInteger("count", 1000); // ~500 MB allocation
+
+  static MyObject[][] arr;
+
+  public static void main(String[] args) throws Exception {
+    if (!isEpsilonEnabled()) return;
+
+    Random r = new Random(SEED);
+
+    arr = new MyObject[COUNT * 100][];
+    for (int c = 0; c < COUNT; c++) {
+      arr[c] = new MyObject[c * 100];
+      for (int v = 0; v < c; v++) {
+        arr[c][v] = new MyObject(r.nextInt());
+      }
+    }
+
+    r = new Random(SEED);
+    for (int c = 0; c < COUNT; c++) {
+      MyObject[] b = arr[c];
+      if (b.length != (c * 100)) {
+        throw new IllegalStateException("Failure: length = " + b.length + ", need = " + (c*100));
+      }
+      for (int v = 0; v < c; v++) {
+        int actual = b[v].id();
+        int expected = r.nextInt();
+        if (actual != expected) {
+          throw new IllegalStateException("Failure: expected = " + expected + ", actual = " + actual);
+        }
+      }
+    }
+  }
+
+  public static class MyObject {
+    int id;
+    public MyObject(int id) {
+      this.id = id;
+    }
+    public int id() {
+      return id;
+    }
+  }
+}