--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/CdsSameObjectAlignment.java	Thu Jun 13 22:00:06 2013 +0200
@@ -0,0 +1,92 @@
+/*
+ * 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 CdsSameObjectAlignment
+ * @summary Testing CDS (class data sharing) using varying object alignment.
+ *          Using same object alignment for each dump/load pair
+ * @library /testlibrary
+ */
+
+import com.oracle.java.testlibrary.*;
+
+public class CdsSameObjectAlignment {
+    public static void main(String[] args) throws Exception {
+        String nativeWordSize = System.getProperty("sun.arch.data.model");
+        if (!Platform.is64bit()) {
+            System.out.println("ObjectAlignmentInBytes for CDS is only " +
+                "supported on 64bit platforms; this plaform is " +
+                nativeWordSize);
+            System.out.println("Skipping the test");
+        } else {
+            dumpAndLoadSharedArchive(8);
+            dumpAndLoadSharedArchive(16);
+            dumpAndLoadSharedArchive(32);
+            dumpAndLoadSharedArchive(64);
+        }
+    }
+
+    private static void
+    dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception {
+        String objectAlignmentArg = "-XX:ObjectAlignmentInBytes="
+            + objectAlignmentInBytes;
+        System.out.println("dumpAndLoadSharedArchive(): objectAlignmentInBytes = "
+            + objectAlignmentInBytes);
+
+        // create shared archive
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./sample.jsa",
+            "-Xshare:dump",
+            objectAlignmentArg);
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Loading classes to share");
+        output.shouldHaveExitValue(0);
+
+
+        // run using the shared archive
+        pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./sample.jsa",
+            "-Xshare:on",
+            objectAlignmentArg,
+            "-version");
+
+        output = new OutputAnalyzer(pb.start());
+
+        try {
+            output.shouldContain("sharing");
+            output.shouldHaveExitValue(0);
+        } catch (RuntimeException e) {
+            // CDS uses absolute addresses for performance.
+            // It will try to reserve memory at a specific address;
+            // there is a chance such reservation will fail
+            // If it does, it is NOT considered a failure of the feature,
+            // rather a possible expected outcome, though not likely
+            output.shouldContain(
+                "Unable to reserve shared space at required address");
+            output.shouldHaveExitValue(1);
+        }
+    }
+}