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/*
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* Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* @test
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* @bug 6314913
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* @summary Basic Test for HotSpotDiagnosticMXBean.setVMOption()
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* and getDiagnosticOptions().
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* @author Mandy Chung
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*
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* @run main/othervm -XX:+PrintGCDetails SetVMOption
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*/
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import java.util.*;
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import com.sun.management.HotSpotDiagnosticMXBean;
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import com.sun.management.VMOption;
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import com.sun.management.VMOption.Origin;
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import sun.management.ManagementFactory;
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import sun.misc.Version;
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public class SetVMOption {
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private static String PRINT_GC_DETAILS = "PrintGCDetails";
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private static String EXPECTED_VALUE = "true";
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private static String BAD_VALUE = "yes";
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private static String NEW_VALUE = "false";
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private static String MANAGEMENT_SERVER = "ManagementServer";
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private static HotSpotDiagnosticMXBean mbean =
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ManagementFactory.getDiagnosticMXBean();
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public static void main(String[] args) throws Exception {
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// The following test is transitional only and should be removed
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// once build 52 is promoted.
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int build = Version.jvmBuildNumber();
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if (build > 0 && build < 52) {
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// JVM support is integrated in build 52
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// this test is skipped if running with VM earlier than 52
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return;
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}
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VMOption option = findPrintGCDetailsOption();
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if (!option.getValue().equalsIgnoreCase(EXPECTED_VALUE)) {
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throw new RuntimeException("Unexpected value: " +
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option.getValue() + " expected: " + EXPECTED_VALUE);
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}
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if (option.getOrigin() != Origin.VM_CREATION) {
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throw new RuntimeException("Unexpected origin: " +
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option.getOrigin() + " expected: VM_CREATION");
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}
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if (!option.isWriteable()) {
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throw new RuntimeException("Expected " + PRINT_GC_DETAILS +
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" to be writeable");
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}
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// set VM option to a new value
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mbean.setVMOption(PRINT_GC_DETAILS, NEW_VALUE);
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option = findPrintGCDetailsOption();
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if (!option.getValue().equalsIgnoreCase(NEW_VALUE)) {
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throw new RuntimeException("Unexpected value: " +
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option.getValue() + " expected: " + NEW_VALUE);
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}
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if (option.getOrigin() != Origin.MANAGEMENT) {
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throw new RuntimeException("Unexpected origin: " +
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option.getOrigin() + " expected: MANAGEMENT");
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}
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VMOption o = mbean.getVMOption(PRINT_GC_DETAILS);
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if (!option.getValue().equals(o.getValue())) {
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throw new RuntimeException("Unmatched value: " +
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option.getValue() + " expected: " + o.getValue());
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}
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if (!option.getValue().equals(o.getValue())) {
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throw new RuntimeException("Unmatched value: " +
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option.getValue() + " expected: " + o.getValue());
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}
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if (option.getOrigin() != o.getOrigin()) {
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throw new RuntimeException("Unmatched origin: " +
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option.getOrigin() + " expected: " + o.getOrigin());
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}
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if (option.isWriteable() != o.isWriteable()) {
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throw new RuntimeException("Unmatched writeable: " +
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option.isWriteable() + " expected: " + o.isWriteable());
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}
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// check if ManagementServer is not writeable
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List<VMOption> options = mbean.getDiagnosticOptions();
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VMOption mgmtServerOption = null;
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for (VMOption o1 : options) {
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if (o1.getName().equals(MANAGEMENT_SERVER)) {
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mgmtServerOption = o1;
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break;
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}
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}
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if (mgmtServerOption != null) {
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throw new RuntimeException(MANAGEMENT_SERVER +
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" is not expected to be writeable");
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}
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mgmtServerOption = mbean.getVMOption(MANAGEMENT_SERVER);
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if (mgmtServerOption == null) {
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throw new RuntimeException(MANAGEMENT_SERVER +
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" should exist.");
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}
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if (mgmtServerOption.getOrigin() != Origin.DEFAULT) {
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throw new RuntimeException(MANAGEMENT_SERVER +
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" should have the default value.");
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}
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if (mgmtServerOption.isWriteable()) {
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throw new RuntimeException(MANAGEMENT_SERVER +
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" is not expected to be writeable");
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}
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}
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public static VMOption findPrintGCDetailsOption() {
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List<VMOption> options = mbean.getDiagnosticOptions();
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VMOption gcDetails = null;
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for (VMOption o : options) {
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if (o.getName().equals(PRINT_GC_DETAILS)) {
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gcDetails = o;
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break;
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}
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}
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if (gcDetails == null) {
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throw new RuntimeException("VM option " + PRINT_GC_DETAILS +
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" not found");
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}
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return gcDetails;
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}
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}
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