test/jtreg-ext/requires/VMProps.java
author aph
Fri, 19 Jan 2018 16:57:56 +0000
changeset 48701 48ce4b11bc17
parent 48155 551de50b4ff7
child 48880 ee49ac008730
permissions -rw-r--r--
8195685: AArch64: AArch64 cannot build with JDK-8174962 Reviewed-by: adinn, njian
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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 * Copyright (c) 2016, 2017, 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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package requires;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.StandardOpenOption;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.Callable;
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import java.util.concurrent.TimeUnit;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import sun.hotspot.cpuinfo.CPUInfo;
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import sun.hotspot.gc.GC;
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import sun.hotspot.WhiteBox;
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import jdk.test.lib.Platform;
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/**
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 * The Class to be invoked by jtreg prior Test Suite execution to
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 * collect information about VM.
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 * Do not use any API's that may not be available in all target VMs.
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 * Properties set by this Class will be available in the @requires expressions.
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 */
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public class VMProps implements Callable<Map<String, String>> {
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    private static final WhiteBox WB = WhiteBox.getWhiteBox();
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    /**
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     * Collects information about VM properties.
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     * This method will be invoked by jtreg.
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     *
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     * @return Map of property-value pairs.
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     */
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    @Override
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    public Map<String, String> call() {
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        Map<String, String> map = new HashMap<>();
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        map.put("vm.flavor", vmFlavor());
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        map.put("vm.compMode", vmCompMode());
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        map.put("vm.bits", vmBits());
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        map.put("vm.flightRecorder", vmFlightRecorder());
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        map.put("vm.simpleArch", vmArch());
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        map.put("vm.debug", vmDebug());
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        map.put("vm.jvmci", vmJvmci());
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        map.put("vm.emulatedClient", vmEmulatedClient());
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        map.put("vm.cpu.features", cpuFeatures());
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        map.put("vm.rtm.cpu", vmRTMCPU());
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        map.put("vm.rtm.os", vmRTMOS());
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        map.put("vm.aot", vmAOT());
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        // vm.cds is true if the VM is compiled with cds support.
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        map.put("vm.cds", vmCDS());
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        map.put("vm.cds.custom.loaders", vmCDSForCustomLoaders());
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        // vm.graal.enabled is true if Graal is used as JIT
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        map.put("vm.graal.enabled", isGraalEnabled());
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        map.put("docker.support", dockerSupport());
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        vmGC(map); // vm.gc.X = true/false
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        VMProps.dump(map);
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        return map;
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    }
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    /**
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     * Prints a stack trace before returning null.
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     * Used by the various helper functions which parse information from
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     * VM properties in the case where they don't find an expected property
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     * or a propoerty doesn't conform to an expected format.
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     *
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     * @return null
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     */
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    private String nullWithException(String message) {
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        new Exception(message).printStackTrace();
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        return null;
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    }
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    /**
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     * @return vm.simpleArch value of "os.simpleArch" property of tested JDK.
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     */
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    protected String vmArch() {
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        String arch = System.getProperty("os.arch");
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        if (arch.equals("x86_64") || arch.equals("amd64")) {
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            return "x64";
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        }
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        else if (arch.contains("86")) {
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            return "x86";
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        } else {
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            return arch;
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        }
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    }
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    /**
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     * @return VM type value extracted from the "java.vm.name" property.
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     */
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    protected String vmFlavor() {
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        // E.g. "Java HotSpot(TM) 64-Bit Server VM"
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        String vmName = System.getProperty("java.vm.name");
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        if (vmName == null) {
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            return nullWithException("Can't get 'java.vm.name' property");
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        }
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        Pattern startP = Pattern.compile(".* (\\S+) VM");
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        Matcher m = startP.matcher(vmName);
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        if (m.matches()) {
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            return m.group(1).toLowerCase();
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        }
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        return nullWithException("Can't get VM flavor from 'java.vm.name'");
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    }
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    /**
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     * @return VM compilation mode extracted from the "java.vm.info" property.
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     */
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    protected String vmCompMode() {
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        // E.g. "mixed mode"
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        String vmInfo = System.getProperty("java.vm.info");
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        if (vmInfo == null) {
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            return nullWithException("Can't get 'java.vm.info' property");
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        }
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        if (vmInfo.toLowerCase().indexOf("mixed mode") != -1) {
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            return "Xmixed";
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        } else if (vmInfo.toLowerCase().indexOf("compiled mode") != -1) {
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            return "Xcomp";
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        } else if (vmInfo.toLowerCase().indexOf("interpreted mode") != -1) {
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            return "Xint";
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        } else {
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            return nullWithException("Can't get compilation mode from 'java.vm.info'");
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        }
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    }
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    /**
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     * @return VM bitness, the value of the "sun.arch.data.model" property.
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     */
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    protected String vmBits() {
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        String dataModel = System.getProperty("sun.arch.data.model");
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        if (dataModel != null) {
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            return dataModel;
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        } else {
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            return nullWithException("Can't get 'sun.arch.data.model' property");
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        }
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    }
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    /**
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     * @return "true" if Flight Recorder is enabled, "false" if is disabled.
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     */
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    protected String vmFlightRecorder() {
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        Boolean isUnlockedCommercialFatures = WB.getBooleanVMFlag("UnlockCommercialFeatures");
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        Boolean isFlightRecorder = WB.getBooleanVMFlag("FlightRecorder");
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        String startFROptions = WB.getStringVMFlag("StartFlightRecording");
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        if (isUnlockedCommercialFatures != null && isUnlockedCommercialFatures) {
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            if (isFlightRecorder != null && isFlightRecorder) {
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                return "true";
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            }
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            if (startFROptions != null && !startFROptions.isEmpty()) {
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                return "true";
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            }
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        }
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        return "false";
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    }
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    /**
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     * @return debug level value extracted from the "jdk.debug" property.
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     */
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    protected String vmDebug() {
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        String debug = System.getProperty("jdk.debug");
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        if (debug != null) {
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            return "" + debug.contains("debug");
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        } else {
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            return nullWithException("Can't get 'jdk.debug' property");
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        }
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    }
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    /**
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     * @return true if VM supports JVMCI and false otherwise
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     */
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    protected String vmJvmci() {
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        // builds with jvmci have this flag
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        return "" + (WB.getBooleanVMFlag("EnableJVMCI") != null);
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    }
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    /**
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     * @return true if VM runs in emulated-client mode and false otherwise.
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     */
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    protected String vmEmulatedClient() {
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        String vmInfo = System.getProperty("java.vm.info");
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        if (vmInfo == null) {
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            return "false";
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        }
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        return "" + vmInfo.contains(" emulated-client");
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    }
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    /**
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     * @return supported CPU features
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     */
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    protected String cpuFeatures() {
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        return CPUInfo.getFeatures().toString();
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    }
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    /**
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     * For all existing GC sets vm.gc.X property.
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     * Example vm.gc.G1=true means:
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     *    VM supports G1
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     *    User either set G1 explicitely (-XX:+UseG1GC) or did not set any GC
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     * @param map - property-value pairs
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     */
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    protected void vmGC(Map<String, String> map){
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        GC currentGC = GC.current();
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        boolean isByErgo = GC.currentSetByErgo();
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        List<GC> supportedGC = GC.allSupported();
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        for (GC gc: GC.values()) {
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            boolean isSupported = supportedGC.contains(gc);
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            boolean isAcceptable = isSupported && (gc == currentGC || isByErgo);
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            map.put("vm.gc." + gc.name(), "" + isAcceptable);
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        }
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    }
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    /**
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     * @return true if VM runs RTM supported OS and false otherwise.
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     */
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    protected String vmRTMOS() {
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        boolean isRTMOS = true;
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        if (Platform.isAix()) {
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            // Actually, this works since AIX 7.1.3.30, but os.version property
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            // is set to 7.1.
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            isRTMOS = (Platform.getOsVersionMajor()  > 7) ||
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                      (Platform.getOsVersionMajor() == 7 && Platform.getOsVersionMinor() > 1);
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        } else if (Platform.isLinux()) {
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            if (Platform.isPPC()) {
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                isRTMOS = (Platform.getOsVersionMajor()  > 4) ||
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                          (Platform.getOsVersionMajor() == 4 && Platform.getOsVersionMinor() > 1);
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            }
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        }
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        return "" + isRTMOS;
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    }
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    /**
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     * @return true if VM runs RTM supported CPU and false otherwise.
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     */
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    protected String vmRTMCPU() {
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        boolean vmRTMCPU = (Platform.isPPC() ? CPUInfo.hasFeature("tcheck") : CPUInfo.hasFeature("rtm"));
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        return "" + vmRTMCPU;
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    }
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    /**
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     * @return true if VM supports AOT and false otherwise
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     */
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    protected String vmAOT() {
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        // builds with aot have jaotc in <JDK>/bin
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        Path bin = Paths.get(System.getProperty("java.home"))
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                        .resolve("bin");
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        Path jaotc;
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        if (Platform.isWindows()) {
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            jaotc = bin.resolve("jaotc.exe");
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        } else {
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            jaotc = bin.resolve("jaotc");
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        }
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        return "" + Files.exists(jaotc);
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    }
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    /**
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     * Check for CDS support.
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     *
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     * @return true if CDS is supported by the VM to be tested.
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     */
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    protected String vmCDS() {
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        if (WB.isCDSIncludedInVmBuild()) {
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            return "true";
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        } else {
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            return "false";
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        }
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    }
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    /**
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     * Check for CDS support for custom loaders.
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     *
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     * @return true if CDS is supported for customer loader by the VM to be tested.
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     */
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    protected String vmCDSForCustomLoaders() {
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        if (vmCDS().equals("true") && Platform.areCustomLoadersSupportedForCDS()) {
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            return "true";
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        } else {
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            return "false";
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        }
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    }
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    /**
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     * Check if Graal is used as JIT compiler.
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     *
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     * @return true if Graal is used as JIT compiler.
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     */
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    protected String isGraalEnabled() {
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        // Graal is enabled if following conditions are true:
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        // - we are not in Interpreter mode
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   321
        // - UseJVMCICompiler flag is true
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        // - jvmci.Compiler variable is equal to 'graal'
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        // - TieredCompilation is not used or TieredStopAtLevel is greater than 3
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   324
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        Boolean useCompiler = WB.getBooleanVMFlag("UseCompiler");
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        if (useCompiler == null || !useCompiler)
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            return "false";
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   328
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        Boolean useJvmciComp = WB.getBooleanVMFlag("UseJVMCICompiler");
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        if (useJvmciComp == null || !useJvmciComp)
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            return "false";
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   332
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        // This check might be redundant but let's keep it for now.
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        String jvmciCompiler = System.getProperty("jvmci.Compiler");
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        if (jvmciCompiler == null || !jvmciCompiler.equals("graal")) {
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            return "false";
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        }
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   338
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        Boolean tieredCompilation = WB.getBooleanVMFlag("TieredCompilation");
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        Long compLevel = WB.getIntxVMFlag("TieredStopAtLevel");
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        // if TieredCompilation is enabled and compilation level is <= 3 then no Graal is used
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        if (tieredCompilation != null && tieredCompilation && compLevel != null && compLevel <= 3)
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            return "false";
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   344
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        return "true";
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   346
    }
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   347
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   349
   /**
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     * A simple check for docker support
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     *
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     * @return true if docker is supported in a given environment
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   353
     */
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   354
    protected String dockerSupport() {
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   355
        // currently docker testing is only supported for Linux-x64
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   356
        if (! ( Platform.isLinux() && Platform.isX64() ) )
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   357
            return "false";
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   358
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   359
        boolean isSupported;
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   360
        try {
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            isSupported = checkDockerSupport();
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   362
        } catch (Exception e) {
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   363
            isSupported = false;
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   364
        }
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   365
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   366
        return (isSupported) ? "true" : "false";
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   367
    }
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   368
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   369
    private boolean checkDockerSupport() throws IOException, InterruptedException {
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   370
        ProcessBuilder pb = new ProcessBuilder("docker", "ps");
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   371
        Process p = pb.start();
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   372
        p.waitFor(10, TimeUnit.SECONDS);
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   373
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   374
        return (p.exitValue() == 0);
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   375
    }
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   376
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   377
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   378
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   379
    /**
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   380
     * Dumps the map to the file if the file name is given as the property.
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   381
     * This functionality could be helpful to know context in the real
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   382
     * execution.
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   383
     *
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   384
     * @param map
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   385
     */
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   386
    protected static void dump(Map<String, String> map) {
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   387
        String dumpFileName = System.getProperty("vmprops.dump");
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   388
        if (dumpFileName == null) {
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   389
            return;
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diff changeset
   390
        }
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   391
        List<String> lines = new ArrayList<>();
39199
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   392
        map.forEach((k, v) -> lines.add(k + ":" + v));
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   393
        try {
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8009d4cba2ea 8170228: register closed @requires property setter
iignatyev
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   394
            Files.write(Paths.get(dumpFileName), lines, StandardOpenOption.APPEND);
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   395
        } catch (IOException e) {
7a596e23c0da 8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode
dfazunen
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   396
            throw new RuntimeException("Failed to dump properties into '"
7a596e23c0da 8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode
dfazunen
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   397
                    + dumpFileName + "'", e);
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dfazunen
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   398
        }
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dfazunen
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   399
    }
7a596e23c0da 8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode
dfazunen
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   400
7a596e23c0da 8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode
dfazunen
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   401
    /**
7a596e23c0da 8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode
dfazunen
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   402
     * This method is for the testing purpose only.
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dfazunen
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   403
     * @param args
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dfazunen
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   404
     */
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dfazunen
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   405
    public static void main(String args[]) {
7a596e23c0da 8152432: Implement setting jtreg @requires properties vm.flavor, vm.bits, vm.compMode
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   406
        Map<String, String> map = new VMProps().call();
39199
ec6fd961811c 8158412: [TESTBUG] TestIHOPErgo and TestStressG1Humongous should not be executed when JFR is enabled
mchernov
parents: 39198
diff changeset
   407
        map.forEach((k, v) -> System.out.println(k + ": '" + v + "'"));
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dfazunen
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   408
    }
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   409
}