--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/tools/launcher/ChangeDataModel.java	Sat Jan 28 10:46:46 2012 -0800
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2012, 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 4894330 4810347 6277269
+ * @compile -XDignore.symbol.file ChangeDataModel.java
+ * @run main ChangeDataModel
+ * @summary Verify -d32 and -d64 options are accepted(rejected) on all platforms
+ * @author Joseph D. Darcy, ksrini
+ */
+import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ChangeDataModel extends TestHelper {
+    private static final File TestJar      = new File("test" + JAR_FILE_EXT);
+    private static final String OPT_PREFIX = "ARCH_OPT:";
+
+    public static void main(String... args) throws Exception {
+        String[] code = {
+            "   public static void main(String argv[]) {",
+            "      System.out.println(\"" + OPT_PREFIX + "-d\" + System.getProperty(\"sun.arch.data.model\", \"none\"));",
+            "   }",
+        };
+        createJar(TestJar, code);
+
+        // verify if data model flag for default data model is accepted
+        if (is32Bit) {
+            checkAcceptance(javaCmd, "-d32");
+        } else if (is64Bit) {
+            checkAcceptance(javaCmd, "-d64");
+        } else {
+            throw new Error("unsupported data model");
+        }
+
+        // test dual mode systems
+        if (isDualMode) {
+            // albeit dual mode we may not have the 64 bit components present
+            if (dualModePresent()) {
+                // 32-bit -> 64-bit
+                checkExecCount(javaCmd, "-d64");
+                // 64-bit -> 32-bit
+                checkExecCount(java64Cmd, "-d32");
+
+                checkAcceptance(javaCmd, "-d64");
+                checkAcceptance(java64Cmd, "-d32");
+            } else {
+                System.out.println("Warning: no 64-bit components found;" +
+                    " only one data model tested.");
+            }
+        } else {
+            // Negative tests: ensure that non-dual mode systems reject the
+            // complementary (other) data model
+            if (is32Bit) {
+                checkRejection(javaCmd, "-d64");
+            } else if (is64Bit) {
+                checkRejection(javaCmd, "-d32");
+            } else {
+                throw new Error("unsupported data model");
+            }
+        }
+    }
+
+    static void checkExecCount(String cmd, String dmodel) {
+        Map<String, String> envMap = new HashMap<>();
+        envMap.put(JLDEBUG_KEY, "true");
+        TestResult tr = doExec(envMap, javaCmd, "-d64",
+                "-jar", TestJar.getAbsolutePath());
+        int count = 0;
+        for (String x : tr.testOutput) {
+            if (x.contains(EXPECTED_MARKER)) {
+                count++;
+                if (count > 1) {
+                    System.out.println(tr);
+                    throw new RuntimeException("Maximum exec count of 1 execeeded");
+                }
+            }
+        }
+    }
+
+    static void checkAcceptance(String cmd, String dmodel) {
+        TestResult tr = doExec(cmd, dmodel, "-jar", TestJar.getAbsolutePath());
+        if (!tr.contains(OPT_PREFIX + dmodel)) {
+            System.out.println(tr);
+            String message = "Data model flag " + dmodel +
+                    " not accepted or had improper effect.";
+            throw new RuntimeException(message);
+        }
+    }
+
+    static void checkRejection(String cmd, String dmodel) {
+        TestResult tr = doExec(cmd, dmodel, "-jar", TestJar.getAbsolutePath());
+        if (tr.contains(OPT_PREFIX + dmodel)) {
+            System.out.println(tr);
+            String message = "Data model flag " + dmodel + " was accepted.";
+            throw new RuntimeException(message);
+        }
+    }
+}