test/jdk/jdk/jfr/jvm/TestJfrJavaBase.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug 8157032
 * @key jfr
 * @summary verify that jfr can not be used when JVM is executed only with java.base
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 * @run driver jdk.jfr.jvm.TestJfrJavaBase
 */

package jdk.jfr.jvm;


import jdk.test.lib.dcmd.PidJcmdExecutor;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;

public class TestJfrJavaBase {

    private static void checkOutput(OutputAnalyzer output) {
        output.shouldContain("jdk.jfr not found.");
        output.shouldContain("Flight Recorder can not be enabled.");
        output.shouldContain("To use Flight Recorder, you might need to add \"--add-modules jdk.jfr\" to the VM command-line options.");
    }

    public static void main(String[] args) throws Exception {
        OutputAnalyzer output;
        if (args.length == 0) {
            output = ProcessTools.executeProcess(ProcessTools.createJavaProcessBuilder(false,
                "-Dtest.jdk=" + System.getProperty("test.jdk"),
                "--limit-modules", "java.base", "-cp", System.getProperty("java.class.path"),
                TestJfrJavaBase.class.getName(), "runtest"));
            output.shouldHaveExitValue(0);
        } else {
            output = ProcessTools.executeTestJava("-XX:StartFlightRecording=dumponexit=true",
                "--limit-modules", "java.base", "-version");
            checkOutput(output);
            output.shouldHaveExitValue(1);

            // Verify that JFR.start jcmd command reports an error when jdk.jfr module is not available
            output = new PidJcmdExecutor().execute("JFR.start");
            checkOutput(output);
            output.shouldHaveExitValue(0);
        }
    }
}