--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/com/sun/management/OperatingSystemMXBean/MemoryStatusOverflow.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2012, 2015, 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 6853676
+ * @summary On computers with more than 4 GB of memory,
+ * the GlobalMemoryStatus function can return incorrect information,
+ * reporting a value of -1 to indicate an overflow.
+ *
+ * @run main MemoryStatusOverflow
+ */
+
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.List;
+import java.lang.management.ManagementFactory;
+import com.sun.management.OperatingSystemMXBean;
+
+public class MemoryStatusOverflow {
+ static final long MEMORYSTATUS_OVERFLOW = (1L << 32) - 1; // (DWORD) -1
+
+ public static void main(String... args) throws Exception {
+ OperatingSystemMXBean bean = (OperatingSystemMXBean)
+ ManagementFactory.getOperatingSystemMXBean();
+ List<String> failedGetterNames = new ArrayList<String>();
+ List<String> testedGetterNames = Arrays.asList(
+ "getTotalSwapSpaceSize", "getFreeSwapSpaceSize",
+ "getTotalPhysicalMemorySize", "getFreePhysicalMemorySize");
+ for (String getterName : testedGetterNames) {
+ Method getter = OperatingSystemMXBean.class.getMethod(getterName);
+ long value = (Long) getter.invoke(bean);
+ if (value == MEMORYSTATUS_OVERFLOW) {
+ failedGetterNames.add(getterName);
+ }
+ }
+ if (!failedGetterNames.isEmpty()) {
+ throw new AssertionError(failedGetterNames);
+ }
+ System.out.println("Test passed.");
+ }
+}