/*
* Copyright ( c ) 2018 , 2020 , Oracle and / or its affiliates . 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 .
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*/
/*
* @ test
* @ bug 8193184
* @ summary Check class counters in summary report
* @ library / test / lib
* @ modules java . base / jdk . internal . misc
* java . management
* @ run main / othervm - Xbootclasspath / a : . - XX : NativeMemoryTracking = summary JcmdSummaryClass
*/
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.JDKToolFinder;
import java.util.regex.*;
public class JcmdSummaryClass {
public static void main(String args[]) throws Exception {
ProcessBuilder pb = new ProcessBuilder();
OutputAnalyzer output;
// Grab my own PID
String pid = Long .toString(ProcessTools.getProcessId());
// Run 'jcmd <pid> VM.native_memory baseline=true'
pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd" ), pid, "VM.native_memory" });
pb.start().waitFor();
String classes_line = "classes #\\d+" ;
String instance_array_classes_line = "instance classes #\\d+, array classes #\\d+" ;
output = new OutputAnalyzer(pb.start());
output.shouldMatch(classes_line);
output.shouldMatch(instance_array_classes_line);
}
}
Messung V0.5 in Prozent C=86 H=90 G=87
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-06-10)
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