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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug  8295974
 * @requires os.family != "windows"
 * @library /test/lib
 * @summary Generate a JNI Fatal error, or a warning, in a launched VM and check
 *          the native stack is present as expected.
 * @comment The native code only supports POSIX so no windows testing
 * @run driver TestNativeStack
 */

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

public class TestNativeStack {

    /**
     * Create a native thread that will execute native code that
     * will either trigger a JNI warning (with -Xcheck:jni) or a JNI
     * error, depending on the value of `warning`.
     */
    static native void triggerJNIStackTrace(boolean warning);

    static {
        System.loadLibrary("nativeStack");
    }

    public static void main(String[] args) throws Throwable {
        // case 1: Trigger a JNI warning with Xcheck:jni
        OutputAnalyzer oa =
            ProcessTools.executeTestJvm("-Xcheck:jni",
                                        "-Djava.library.path=" + Utils.TEST_NATIVE_PATH,
                                        "TestNativeStack$Main");
        oa.shouldHaveExitValue(0);
        oa.shouldContain("WARNING in native method");
        oa.shouldContain("thread_start");
        oa.reportDiagnosticSummary();

        // Case 2: Trigger a JNI FatalError call
        oa = ProcessTools.executeTestJvm("-XX:-CreateCoredumpOnCrash",
                                         "-Djava.library.path=" + Utils.TEST_NATIVE_PATH,
                                         "TestNativeStack$Main",
                                         "error");
        oa.shouldNotHaveExitValue(0);
        oa.shouldContain("FATAL ERROR in native method");
        oa.shouldContain("thread_start");
        oa.reportDiagnosticSummary();
    }

    static class Main {
        public static void main(String[] args) throws Throwable {
            boolean doWarning = args.length == 0;
            System.out.println("Triggering a JNI " +
                               (doWarning ? "warning" : "fatal error"));
            triggerJNIStackTrace(doWarning);
        }
    }
}
