--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/metaspace/TestMetaspaceMemoryPools.java	Fri Mar 22 16:10:01 2013 +0100
@@ -0,0 +1,75 @@
+import java.util.List;
+import java.lang.management.ManagementFactory;
+import java.lang.management.MemoryManagerMXBean;
+import java.lang.management.MemoryPoolMXBean;
+import java.lang.management.MemoryUsage;
+
+/* @test TestMetaspaceMemoryPools
+ * @bug 8000754
+ * @summary Tests that two MemoryPoolMXBeans are created, one for metaspace and
+ *          one for class metaspace, is created and that a MemoryManagerMXBean
+ *          is created.
+ * @run main/othervm TestMetaspaceMemoryPools defined undefined
+ * @run main/othervm -XX:-UseCompressedKlassPointers TestMetaspaceMemoryPools undefined undefined
+ * @run main/othervm -XX:-UseCompressedKlassPointers -XX:MaxMetaspaceSize=60m TestMetaspaceMemoryPools undefined defined
+ */
+public class TestMetaspaceMemoryPools {
+    public static void main(String[] args) {
+        boolean isClassMetaspaceMaxDefined = args[0].equals("defined");
+        boolean isMetaspaceMaxDefined = args[1].equals("defined");
+
+        verifyThatMetaspaceMemoryManagerExists();
+
+        verifyMemoryPool(getMemoryPool("Class Metaspace"), isClassMetaspaceMaxDefined);
+        verifyMemoryPool(getMemoryPool("Metaspace"), isMetaspaceMaxDefined);
+    }
+
+    private static void verifyThatMetaspaceMemoryManagerExists() {
+        List<MemoryManagerMXBean> managers = ManagementFactory.getMemoryManagerMXBeans();
+        for (MemoryManagerMXBean manager : managers) {
+            if (manager.getName().equals("MetaspaceManager")) {
+                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) {
+        assertTrue(value == -1, "Expected " + name + " to be undefined");
+    }
+
+    private static void assertTrue(boolean condition, String msg) {
+        if (!condition) {
+            throw new RuntimeException(msg);
+        }
+    }
+}