--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/management/HotSpotDiagnosticMXBean/SetVMOption.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug     6314913
+ * @summary Basic Test for HotSpotDiagnosticMXBean.setVMOption()
+ *          and getDiagnosticOptions().
+ * @author  Mandy Chung
+ *
+ * @run main/othervm -XX:+PrintGCDetails SetVMOption
+ */
+
+import java.util.*;
+import com.sun.management.HotSpotDiagnosticMXBean;
+import com.sun.management.VMOption;
+import com.sun.management.VMOption.Origin;
+import sun.management.ManagementFactory;
+import sun.misc.Version;
+
+public class SetVMOption {
+    private static String PRINT_GC_DETAILS = "PrintGCDetails";
+    private static String EXPECTED_VALUE = "true";
+    private static String BAD_VALUE = "yes";
+    private static String NEW_VALUE = "false";
+    private static String MANAGEMENT_SERVER = "ManagementServer";
+    private static HotSpotDiagnosticMXBean mbean =
+        ManagementFactory.getDiagnosticMXBean();
+
+    public static void main(String[] args) throws Exception {
+
+        // The following test is transitional only and should be removed
+        // once build 52 is promoted.
+        int build = Version.jvmBuildNumber();
+        if (build > 0 && build < 52) {
+             // JVM support is integrated in build 52
+             // this test is skipped if running with VM earlier than 52
+             return;
+        }
+
+        VMOption option = findPrintGCDetailsOption();
+        if (!option.getValue().equalsIgnoreCase(EXPECTED_VALUE)) {
+            throw new RuntimeException("Unexpected value: " +
+                option.getValue() + " expected: " + EXPECTED_VALUE);
+        }
+        if (option.getOrigin() != Origin.VM_CREATION) {
+            throw new RuntimeException("Unexpected origin: " +
+                option.getOrigin() + " expected: VM_CREATION");
+        }
+        if (!option.isWriteable()) {
+            throw new RuntimeException("Expected " + PRINT_GC_DETAILS +
+                " to be writeable");
+        }
+
+        // set VM option to a new value
+        mbean.setVMOption(PRINT_GC_DETAILS, NEW_VALUE);
+
+        option = findPrintGCDetailsOption();
+        if (!option.getValue().equalsIgnoreCase(NEW_VALUE)) {
+            throw new RuntimeException("Unexpected value: " +
+                option.getValue() + " expected: " + NEW_VALUE);
+        }
+        if (option.getOrigin() != Origin.MANAGEMENT) {
+            throw new RuntimeException("Unexpected origin: " +
+                option.getOrigin() + " expected: MANAGEMENT");
+        }
+        VMOption o = mbean.getVMOption(PRINT_GC_DETAILS);
+        if (!option.getValue().equals(o.getValue())) {
+            throw new RuntimeException("Unmatched value: " +
+                option.getValue() + " expected: " + o.getValue());
+        }
+        if (!option.getValue().equals(o.getValue())) {
+            throw new RuntimeException("Unmatched value: " +
+                option.getValue() + " expected: " + o.getValue());
+        }
+        if (option.getOrigin() != o.getOrigin()) {
+            throw new RuntimeException("Unmatched origin: " +
+                option.getOrigin() + " expected: " + o.getOrigin());
+        }
+        if (option.isWriteable() != o.isWriteable()) {
+            throw new RuntimeException("Unmatched writeable: " +
+                option.isWriteable() + " expected: " + o.isWriteable());
+        }
+
+        // check if ManagementServer is not writeable
+        List<VMOption> options = mbean.getDiagnosticOptions();
+        VMOption mgmtServerOption = null;
+        for (VMOption o1 : options) {
+            if (o1.getName().equals(MANAGEMENT_SERVER)) {
+                 mgmtServerOption = o1;
+                 break;
+            }
+        }
+        if (mgmtServerOption != null) {
+            throw new RuntimeException(MANAGEMENT_SERVER +
+                " is not expected to be writeable");
+        }
+        mgmtServerOption = mbean.getVMOption(MANAGEMENT_SERVER);
+        if (mgmtServerOption == null) {
+            throw new RuntimeException(MANAGEMENT_SERVER +
+                " should exist.");
+        }
+        if (mgmtServerOption.getOrigin() != Origin.DEFAULT) {
+            throw new RuntimeException(MANAGEMENT_SERVER +
+                " should have the default value.");
+        }
+        if (mgmtServerOption.isWriteable()) {
+            throw new RuntimeException(MANAGEMENT_SERVER +
+                " is not expected to be writeable");
+        }
+    }
+
+    public static VMOption findPrintGCDetailsOption() {
+        List<VMOption> options = mbean.getDiagnosticOptions();
+        VMOption gcDetails = null;
+        for (VMOption o : options) {
+            if (o.getName().equals(PRINT_GC_DETAILS)) {
+                 gcDetails = o;
+                 break;
+            }
+        }
+        if (gcDetails == null) {
+            throw new RuntimeException("VM option " + PRINT_GC_DETAILS +
+                " not found");
+        }
+        return gcDetails;
+    }
+}