--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/runtime/Metaspace/FragmentMetaspaceSimple.java	Thu May 23 17:39:32 2013 +0200
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+/**
+ * @test
+ * @library /runtime/testlibrary
+ * @library classes
+ * @build test.Empty ClassUnloadCommon
+ * @run main/othervm/timeout=200 FragmentMetaspaceSimple
+ */
+
+import java.util.ArrayList;
+
+/**
+ * Test that tries to fragment the native memory used by class loaders.
+ * Keeps every other class loader alive in order to fragment the memory space
+ * used to store classes and meta data. Since the memory is probably allocated in
+ * chunks per class loader this will cause a lot of fragmentation if not handled
+ * properly since every other chunk will be unused.
+ */
+public class FragmentMetaspaceSimple {
+    public static void main(String... args) {
+        runSimple(Long.valueOf(System.getProperty("time", "80000")));
+        System.gc();
+    }
+
+    private static void runSimple(long time) {
+        long startTime = System.currentTimeMillis();
+        ArrayList<ClassLoader> cls = new ArrayList<>();
+        for (int i = 0; System.currentTimeMillis() < startTime + time; ++i) {
+            ClassLoader ldr = ClassUnloadCommon.newClassLoader();
+            if (i % 1000 == 0) {
+                cls.clear();
+            }
+            // only keep every other class loader alive
+            if (i % 2 == 1) {
+                cls.add(ldr);
+            }
+            Class<?> c = null;
+            try {
+                c = ldr.loadClass("test.Empty");
+            } catch (ClassNotFoundException ex) {
+                throw new RuntimeException(ex);
+            }
+            c = null;
+        }
+        cls = null;
+    }
+}