85 lines
3.3 KiB
Java
85 lines
3.3 KiB
Java
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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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/*
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* @test
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* @bug 8249276
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* @summary When dumping the CDS archive, try to lock some objects. These objects should be archived
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* without the locking bits in the markWord.
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* @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
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* @requires vm.cds
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* @requires vm.flavor != "minimal"
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* @modules java.instrument
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* @run driver LockDuringDump
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*/
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import jdk.test.lib.process.OutputAnalyzer;
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public class LockDuringDump {
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public static String appClasses[] = {
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LockDuringDumpApp.class.getName(),
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};
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public static String agentClasses[] = {
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LockDuringDumpAgent.class.getName(),
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};
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private static final String MANIFEST =
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"Manifest-Version: 1.0\nPremain-Class: LockDuringDumpAgent\n";
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public static void main(String[] args) throws Throwable {
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String agentJar =
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ClassFileInstaller.writeJar("LockDuringDumpAgent.jar",
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ClassFileInstaller.Manifest.fromString(MANIFEST),
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agentClasses);
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String appJar =
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ClassFileInstaller.writeJar("LockDuringDumpApp.jar", appClasses);
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for (int i = 0; i < 3; i++) {
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// i = 0 -- dump without agent
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// i = 1 -- dump with agent = disable BiasedLocking
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// i = 2 -- dump with agent = enable BiasedLocking
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String agentArg = (i == 0) ? "-showversion" : "-javaagent:" + agentJar;
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String agentArg2 = (i == 0) ? "-showversion" : "-XX:+AllowArchivingWithJavaAgent";
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String biasedLock = (i != 2) ? "-showversion" : "-XX:+UseBiasedLocking";
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OutputAnalyzer out =
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TestCommon.testDump(appJar, TestCommon.list(LockDuringDumpApp.class.getName()),
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"-XX:+UnlockDiagnosticVMOptions",
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agentArg, agentArg2, biasedLock);
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if (i != 0) {
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out.shouldContain("Let's hold the lock on the literal string");
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}
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TestCommon.run(
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"-cp", appJar,
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"-XX:+UnlockDiagnosticVMOptions", agentArg2, biasedLock,
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LockDuringDumpApp.class.getName())
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.assertNormalExit("I am able to lock the literal string");
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}
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}
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}
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