GetObjectSizeClass.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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import java.io.PrintWriter;
import jdk.test.lib.JDKToolFinder;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;


/*
 * @test
 * @bug 8075030
 * @summary JvmtiEnv::GetObjectSize reports incorrect java.lang.Class instance size
 * @requires vm.jvmti
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.compiler
 *          java.instrument
 *          java.management
 *          jdk.internal.jvmstat/sun.jvmstat.monitor
 * @build GetObjectSizeClassAgent
 * @run driver jdk.test.lib.helpers.ClassFileInstaller GetObjectSizeClassAgent
 * @run main GetObjectSizeClass
 */
public class GetObjectSizeClass {
    public static void main(String[] args) throws Exception  {
        PrintWriter pw = new PrintWriter("MANIFEST.MF");
        pw.println("Premain-Class: GetObjectSizeClassAgent");
        pw.close();

        ProcessBuilder pb = new ProcessBuilder();
        pb.command(new String[] { JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar", "GetObjectSizeClassAgent.class"});
        pb.start().waitFor();

        ProcessBuilder pt = ProcessTools.createTestJvm("-javaagent:agent.jar",  "GetObjectSizeClassAgent");
        OutputAnalyzer output = new OutputAnalyzer(pt.start());

        output.stdoutShouldContain("GetObjectSizeClass passed");
    }
}