TestDeprecatedPrintFlags.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 2 along with this work; if not, write to the Free Software Foundation,
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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();
    }
}