On Fri, 16 Oct 2020 04:49:37 GMT, Sergey Bylokhov <s...@openjdk.org> wrote:
>>> > > How it is possible to test the current changes? >>> > >>> > >>> > For GraalVM native image, we run JCK tests `api/java_awt` and >>> > `api/javax_swing`. Those tests built as a native image. >>> >>> I meant some "steps to reproduce" the current bug, and which can be used to >>> verify the current fix. >> >> Actually, we have found this issue during JCK tests execution that was built >> as a native image. The fix criteria are the successful tests run. > >> Actually, we have found this issue during JCK tests execution that was built >> as a native image. The fix criteria are the successful tests run. > > But what exact steps should be done to reproduce this bug w/o using jck or > any external tools? Something like: > - Clone JDK > - Build JDK using some specific options. > - Create some small test case > - Somehow create the native image > - Run the app -> boom -> bug is reproduced @mrserb With the last dev build of GraalVM based on JDK 11.09, the bug can be reproduced by the approach that I've mentioned above. The general steps: - download the [last dev build](https://github.com/graalvm/graalvm-ce-dev-builds/releases) of GraalVM + Native image - build the native image for AWTFixExample class (ziped configs for reflection and JNI is attached): `$ ~/graalvm-ce-java11-21.0.0-dev/bin/native-image -H:ConfigurationFileDirectories=./configs -Djava.awt.headless=true --native-image-info AWTFixExample` - run built image - it should be executed successfully - clone any version of the OpenJDK (11.09 - 16) - build static libraries by executing `make static-libs-image` target - replace `libawt.a` in GraalVM on built static library from OpenJDK - try to build example again and run it - it should be failed - clone OpenJDK with the proposed fix - build static libraries - replace `libawt.a` in GraalVM on built static library with the fix - build example and run it - it should be executed successfully public class AWTFixExample { public static void main(String[] args) { float[] data = new float[]{0.0f, 1.1f, 2.2f, 3.3f, 4.4f, 5.5f, 6.6f, 7.7f, 8.8f}; Kernel kernel = new Kernel(3, 3, data); ConvolveOp op = new ConvolveOp(kernel); BufferedImage src = new BufferedImage(10, 10, BufferedImage.TYPE_INT_ARGB); BufferedImage dest = new BufferedImage(10, 10, BufferedImage.TYPE_INT_ARGB); BufferedImage image = op.filter(src, dest); System.out.println(image); } } [configs.zip](https://github.com/openjdk/jdk/files/5490906/configs.zip) ------------- PR: https://git.openjdk.java.net/jdk/pull/562
