UncaughtNativeExceptionTest.java

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/*
 * @test id
 * @enablePreview
 * @requires os.family == "windows"
 * @library /test/lib
 * @run testng UncaughtNativeExceptionTest
 */

import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import org.testng.annotations.Test;

import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.regex.Pattern;

import static org.testng.Assert.assertTrue;

public class UncaughtNativeExceptionTest {
    private static class Crasher {
        public static void main(String[] args) throws Throwable {
            System.loadLibrary("NativeException");
            throwException();
        }

        static native void throwException();
    }

    // check that we actually report the native exception,
    // and don't terminate abruptly due to stack overflow error
    @Test
    public void testNativeExceptionReporting() throws Exception {
        OutputAnalyzer output = ProcessTools.executeTestJava(
                // executeTestJava doesn't seem to forward 'java.library.path'
                "-Djava.library.path=" + System.getProperty("java.library.path"),
                Crasher.class.getName());

        File hsErrFile = HsErrFileUtils.openHsErrFileFromOutput(output);
        Path hsErrPath = hsErrFile.toPath();
        assertTrue(Files.exists(hsErrPath));

        Pattern[] positivePatterns = {
            Pattern.compile(".*Internal Error \\(0xdeadbeef\\).*")
        };
        HsErrFileUtils.checkHsErrFileContent(hsErrFile, positivePatterns, null, true /* check end marker */, false /* verbose */);
    }
}