--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/gc/metaspace/TestMetaspaceMemoryPool.java	Wed Jun 26 16:58:37 2013 +0200
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+import java.util.List;
+import java.lang.management.ManagementFactory;
+import java.lang.management.MemoryManagerMXBean;
+import java.lang.management.MemoryPoolMXBean;
+import java.lang.management.MemoryUsage;
+
+import java.lang.management.RuntimeMXBean;
+import java.lang.management.ManagementFactory;
+
+/* @test TestMetaspaceMemoryPool
+ * @bug 8000754
+ * @summary Tests that a MemoryPoolMXBeans is created for metaspace and that a
+ *          MemoryManagerMXBean is created.
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops TestMetaspaceMemoryPool
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:MaxMetaspaceSize=60m TestMetaspaceMemoryPool
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedKlassPointers TestMetaspaceMemoryPool
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedKlassPointers -XX:ClassMetaspaceSize=60m TestMetaspaceMemoryPool
+ */
+public class TestMetaspaceMemoryPool {
+    public static void main(String[] args) {
+        verifyThatMetaspaceMemoryManagerExists();
+        verifyMemoryPool(getMemoryPool("Metaspace"), isFlagDefined("MaxMetaspaceSize"));
+
+        if (runsOn64bit()) {
+            if (usesCompressedOops()) {
+                MemoryPoolMXBean cksPool = getMemoryPool("Compressed Class Space");
+                verifyMemoryPool(cksPool, true);
+            }
+        }
+    }
+
+    private static boolean runsOn64bit() {
+        return !System.getProperty("sun.arch.data.model").equals("32");
+    }
+
+    private static boolean usesCompressedOops() {
+        return isFlagDefined("+UseCompressedOops");
+    }
+
+    private static boolean isFlagDefined(String name) {
+        RuntimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean();
+        List<String> args = runtimeMxBean.getInputArguments();
+        for (String arg : args) {
+            if (arg.startsWith("-XX:" + name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static void verifyThatMetaspaceMemoryManagerExists() {
+        List<MemoryManagerMXBean> managers = ManagementFactory.getMemoryManagerMXBeans();
+        for (MemoryManagerMXBean manager : managers) {
+            if (manager.getName().equals("Metaspace Manager")) {
+                return;
+            }
+        }
+
+        throw new RuntimeException("Expected to find a metaspace memory manager");
+    }
+
+    private static MemoryPoolMXBean getMemoryPool(String name) {
+        List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans();
+        for (MemoryPoolMXBean pool : pools) {
+            if (pool.getName().equals(name)) {
+                return pool;
+            }
+        }
+
+        throw new RuntimeException("Expected to find a memory pool with name " + name);
+    }
+
+    private static void verifyMemoryPool(MemoryPoolMXBean pool, boolean isMaxDefined) {
+        MemoryUsage mu = pool.getUsage();
+        assertDefined(mu.getInit(), "init");
+        assertDefined(mu.getUsed(), "used");
+        assertDefined(mu.getCommitted(), "committed");
+
+        if (isMaxDefined) {
+            assertDefined(mu.getMax(), "max");
+        } else {
+            assertUndefined(mu.getMax(), "max");
+        }
+    }
+
+    private static void assertDefined(long value, String name) {
+        assertTrue(value != -1, "Expected " + name + " to be defined");
+    }
+
+    private static void assertUndefined(long value, String name) {
+        assertEquals(value, -1, "Expected " + name + " to be undefined");
+    }
+
+    private static void assertEquals(long actual, long expected, String msg) {
+        assertTrue(actual == expected, msg);
+    }
+
+    private static void assertTrue(boolean condition, String msg) {
+        if (!condition) {
+            throw new RuntimeException(msg);
+        }
+    }
+}