jdk

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PrintClasses.java 
63 строки · 2.2 Кб
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/*
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 * Copyright (c) 2022, Alibaba Group Holding Limited. 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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 * @test
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 * @bug 8275775
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 * @summary Test jcmd VM.classes
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 * @library /test/lib
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 * @run main/othervm PrintClasses
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 */
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/*
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 * @test
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 * @bug 8298162
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 * @summary Test jcmd VM.classes with JFR
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 * @requires vm.hasJFR
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 * @library /test/lib
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 * @run main/othervm -XX:StartFlightRecording PrintClasses
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 */
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.JDKToolFinder;
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public class PrintClasses {
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  public static void main(String args[]) throws Exception {
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    var pid = Long.toString(ProcessHandle.current().pid());
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    var pb = new ProcessBuilder();
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    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.classes"});
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    var output = new OutputAnalyzer(pb.start());
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    output.shouldNotContain("instance size");
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    output.shouldContain(PrintClasses.class.getSimpleName());
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    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.classes", "-verbose"});
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    output = new OutputAnalyzer(pb.start());
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    output.shouldContain("instance size");
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    output.shouldContain(PrintClasses.class.getSimpleName());
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    // Test for previous bug in misc flags printing
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    output.shouldNotContain("##name");
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  }
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}
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