/*
* Copyright ( c ) 2013 , 2016 , 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 .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.lang.Class ;
import java.lang.String;
import java.lang.System;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CyclicBarrier;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import jdk.internal.vm.annotation.Contended;
/*
* @ test
* @ bug 8015270
* @ bug 8015493
* @ summary \ @ Contended : fix multiple issues in the layout code
*
* @ modules java . base / jdk . internal . vm . annotation
* @ run main / othervm - XX : - RestrictContended - XX : ContendedPaddingWidth = 128 - Xmx128m OopMaps
*/
public class OopMaps {
public static final int COUNT = 10000 ;
public static void main(String[] args) throws Exception {
Object o01 = new Object();
Object o02 = new Object();
Object o03 = new Object();
Object o04 = new Object();
Object o05 = new Object();
Object o06 = new Object();
Object o07 = new Object();
Object o08 = new Object();
Object o09 = new Object();
Object o10 = new Object();
Object o11 = new Object();
Object o12 = new Object();
Object o13 = new Object();
Object o14 = new Object();
R1[] rs = new R1[COUNT];
for (int i = 0 ; i < COUNT; i++) {
R1 r1 = new R1();
r1.o01 = o01;
r1.o02 = o02;
r1.o03 = o03;
r1.o04 = o04;
r1.o05 = o05;
r1.o06 = o06;
r1.o07 = o07;
r1.o08 = o08;
r1.o09 = o09;
r1.o10 = o10;
r1.o11 = o11;
r1.o12 = o12;
r1.o13 = o13;
r1.o14 = o14;
r1.i1 = 1 ;
r1.i2 = 2 ;
r1.i3 = 3 ;
r1.i4 = 4 ;
rs[i] = r1;
}
System.gc();
for (int i = 0 ; i < COUNT; i++) {
R1 r1 = rs[i];
if (r1.o01 != o01) throw new Error("Test Error: o01" );
if (r1.o02 != o02) throw new Error("Test Error: o02" );
if (r1.o03 != o03) throw new Error("Test Error: o03" );
if (r1.o04 != o04) throw new Error("Test Error: o04" );
if (r1.o05 != o05) throw new Error("Test Error: o05" );
if (r1.o06 != o06) throw new Error("Test Error: o06" );
if (r1.o07 != o07) throw new Error("Test Error: o07" );
if (r1.o08 != o08) throw new Error("Test Error: o08" );
if (r1.o09 != o09) throw new Error("Test Error: o09" );
if (r1.o10 != o10) throw new Error("Test Error: o10" );
if (r1.o11 != o11) throw new Error("Test Error: o11" );
if (r1.o12 != o12) throw new Error("Test Error: o12" );
if (r1.o13 != o13) throw new Error("Test Error: o13" );
if (r1.o14 != o14) throw new Error("Test Error: o14" );
if (r1.i1 != 1 ) throw new Error("Test Error: i1" );
if (r1.i2 != 2 ) throw new Error("Test Error: i2" );
if (r1.i3 != 3 ) throw new Error("Test Error: i3" );
if (r1.i4 != 4 ) throw new Error("Test Error: i4" );
}
}
public static class R0 {
int i1;
int i2;
Object o01;
Object o02;
@Contended
Object o03;
@Contended
Object o04;
@Contended
Object o05;
@Contended
Object o06;
@Contended
Object o07;
}
public static class R1 extends R0 {
int i3;
int i4;
Object o08;
Object o09;
@Contended
Object o10;
@Contended
Object o11;
@Contended
Object o12;
@Contended
Object o13;
@Contended
Object o14;
}
}
Messung V0.5 in Prozent C=89 H=93 G=90
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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