test/hotspot/jtreg/runtime/logging/AsyncDeathTest.java

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/*
 * @test
 * @bug 8349755
 * @summary Perform recursive logging in async UL on purpose
 * @requires vm.flagless
 * @requires vm.debug
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @run driver AsyncDeathTest
 */

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

public class AsyncDeathTest {
    public static void main(String[] args) throws Exception {
        // TestingAsyncLoggingDeathTest is set: We expect the VM to reach ShouldNotReachHere() and die.
        ProcessBuilder pb =
            ProcessTools.createLimitedTestJavaProcessBuilder("-Xlog:async", "-Xlog:os,deathtest=debug", "-XX:-CreateCoredumpOnCrash", "-XX:+TestingAsyncLoggingDeathTest", "--version");
        OutputAnalyzer output = new OutputAnalyzer(pb.start());
        output.shouldNotHaveExitValue(0);
        output.shouldNotContain("Induce a recursive log for testing");
        // TestingAsyncLoggingDeathTestNoCrash is set: We expect the VM to ignore that recursive logging has been detected and the logging should be handled by printing synchronously.
        ProcessBuilder pb2 =
            ProcessTools.createLimitedTestJavaProcessBuilder("-Xlog:async", "-Xlog:os,deathtest=debug", "-XX:+TestingAsyncLoggingDeathTestNoCrash" , "--version");
        OutputAnalyzer output2 = new OutputAnalyzer(pb2.start());
        output2.shouldHaveExitValue(0);
        output2.shouldContain("Induce a recursive log for testing");

        // For -Xlog:all=debug but without any global set, the test should succeed and not contain the recursive message.
        ProcessBuilder pb3 =
            ProcessTools.createLimitedTestJavaProcessBuilder("-Xlog:async", "-Xlog:all=debug", "--version");
        OutputAnalyzer output3 = new OutputAnalyzer(pb3.start());
        output3.shouldHaveExitValue(0);
        output3.shouldNotContain("Induce a recursive log for testing");
    }
}