--- /dev/null	2017-05-17 16:11:11.000000000 +0100
+++ new/test/java/lang/System/refreshEnv/RefreshEnv.java	2017-05-17 16:11:10.000000000 +0100
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2017, 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
+ * @bug 8765432
+ * @summary Basic test for System.refreshEnv
+ * @run testng/othervm/native RefreshEnv
+ */
+
+import java.util.Map;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+import static org.testng.Assert.*;
+
+public class RefreshEnv {
+    static {
+        System.loadLibrary("refreshEnv");
+    }
+
+    @DataProvider
+    public Object[][] envVariables() throws Exception {
+        return new Object[][] {
+                new Object[] { "REFRESH_TEST_A", "LARRY" },
+                new Object[] { "REFRESH_TEST_B", "moe" },
+                new Object[] { "REFRESH_TEST_C", "cUrLy" },
+                new Object[] { "XXZZYY",         "AABBCC" },
+                new Object[] { "NO_VALUE",        "" }
+        };
+    }
+
+    @Test(dataProvider = "envVariables")
+    public void test(String name, String value) {
+        Map<String,String> envs = System.getenv();
+
+        assertEquals(envs.get(name), null);
+        assertEquals(System.getenv(name), null);
+
+        setenv(name, value);
+        System.refreshEnv();
+
+        assertEquals(envs.get(name), value);  // previous map reference
+        assertEquals(System.getenv().get(name), value);
+        assertEquals(System.getenv(name), value);
+
+    }
+
+    /** Sets, natively, the given environment variable with the given value. */
+    static native int setenv(String name, String value);
+
+}