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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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/*

 * @test TestDeprecatedPrintFlags

 * @bug 8145180

 * @summary Verify PrintGC, PrintGCDetails and -Xloggc

 * @key gc

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 */

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

import java.io.File;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.util.List;

import java.util.stream.Collectors;

public class TestDeprecatedPrintFlags {

    public static void testPrintGC() throws Exception {

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintGC", "DoGC");

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("-XX:+PrintGC is deprecated. Will use -Xlog:gc instead.");

        output.shouldNotContain("PrintGCDetails");

        output.stdoutShouldMatch("\\[info.*\\]\\[gc *\\]");

        output.stdoutShouldNotMatch("\\[info.*\\]\\[gc\\,");

        output.shouldHaveExitValue(0);

    }

    public static void testPrintGCDetails() throws Exception {

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintGCDetails", "DoGC");

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("-XX:+PrintGCDetails is deprecated. Will use -Xlog:gc* instead.");

        output.shouldNotContain("PrintGC is deprecated");

        output.stdoutShouldMatch("\\[info.*\\]\\[gc *\\]");

        output.stdoutShouldMatch("\\[info.*\\]\\[gc\\,");

        output.shouldHaveExitValue(0);

    }

    public static void testXloggc() throws Exception {

        String fileName = "gc-test.log";

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xloggc:" + fileName, "DoGC");

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("-Xloggc is deprecated. Will use -Xlog:gc:gc-test.log instead.");

        output.shouldNotContain("PrintGCDetails");

        output.shouldNotContain("PrintGC");

        output.stdoutShouldNotMatch("\\[info.*\\]\\[gc *\\]");

        output.stdoutShouldNotMatch("\\[info.*\\]\\[gc\\,");

        output.shouldHaveExitValue(0);

        String lines = Files.lines(Paths.get(fileName)).collect(Collectors.joining());

        System.out.println("lines: " + lines);

        OutputAnalyzer outputLog = new OutputAnalyzer(lines, "");

        outputLog.stdoutShouldMatch("\\[info.*\\]\\[gc *\\]");

        outputLog.stdoutShouldNotMatch("\\[info.*\\]\\[gc\\,");

    }

    public static void testXloggcWithPrintGCDetails() throws Exception {

        String fileName = "gc-test.log";

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintGCDetails", "-Xloggc:" + fileName, "DoGC");

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("-XX:+PrintGCDetails is deprecated. Will use -Xlog:gc* instead.");

        output.shouldContain("-Xloggc is deprecated. Will use -Xlog:gc:gc-test.log instead.");

        output.shouldNotContain("PrintGC is deprecated");

        output.stdoutShouldNotMatch("\\[info.*\\]\\[gc *\\]");

        output.stdoutShouldNotMatch("\\[info.*\\]\\[gc\\,");

        output.shouldHaveExitValue(0);

        String lines = Files.lines(Paths.get(fileName)).collect(Collectors.joining());

        OutputAnalyzer outputLog = new OutputAnalyzer(lines, "");

        outputLog.stdoutShouldMatch("\\[info.*\\]\\[gc *\\]");

        outputLog.stdoutShouldMatch("\\[info.*\\]\\[gc\\,");

    }

    public static void main(String[] args) throws Exception {

        testPrintGC();

        testPrintGCDetails();

        testXloggc();

        testXloggcWithPrintGCDetails();

    }

}

class DoGC {

    public static void main(String[] args) {

        System.gc();

    }

}