[GR-39473] java.lang.NoClassDefFoundError: com.sun.net.httpserver.HttpServer in runtime on JDK 17

[tonivade]

Describe the issue
Using com.sun.net.httpserver.HttpServer in native-image (JDK 17) throws NoClassDefFoundError with latest 22.2 dev version.
Version 22.1 it works as expected.

Steps to reproduce the issue
1.

import com.sun.net.httpserver.HttpServer;
import java.net.InetSocketAddress;
import java.io.IOException;

public class Test {
    public static void main(String[] args) throws IOException {
        var server = HttpServer.create(new InetSocketAddress("localhost", 8080), 10);
        System.out.println("starting server at localhost:8080");
        server.start();
    }
}

2. javac Test.java
3. native-image --no-fallback --allow-incomplete-classpath Test
4. ./test
5. NoClassDefFoundError

Describe GraalVM and your environment:
openjdk version "17.0.4" 2022-07-19
OpenJDK Runtime Environment GraalVM CE 22.2.0-dev (build 17.0.4+7-jvmci-22.2-b04)
OpenJDK 64-Bit Server VM GraalVM CE 22.2.0-dev (build 17.0.4+7-jvmci-22.2-b04, mixed mode, sharing)

• JDK major version: 17
• OS: Linux
• Architecture: AMD64

More details

 $ native-image --no-fallback --allow-incomplete-classpath Test
Warning: Using a deprecated option --allow-incomplete-classpath from command line. Allowing an incomplete classpath is now the default. Use --link-at-build-time to report linking errors at image build time for a class or package.
WARNING: Unknown module: org.graalvm.nativeimage.llvm specified to --add-exports
WARNING: Unknown module: org.graalvm.nativeimage.llvm specified to --add-exports
WARNING: Unknown module: org.graalvm.nativeimage.llvm specified to --add-exports
========================================================================================================================
 $ ./test 
Exception in thread "main" java.lang.NoClassDefFoundError: com.sun.net.httpserver.HttpServer
        at Test.main(Test.java:7)

[fniephaus]

Thanks for reporting a regression and providing a small reproducer, @tonivade! We'll look into a fix. As a workaround, the native executable works when you build with native-image --no-fallback -J--add-modules -JALL-SYSTEM Test.

[tonivade]

Thanks for the workaround

[inez]

@fniephaus 's workaround expresses in Gradle (kts):

graalvmNative {
    binaries {
        named("main") {
            fallback.set(false)
            buildArgs.add("-J--add-modules")
            buildArgs.add("-JALL-SYSTEM")
        }
    }
}

[fniephaus]

This will be fixed in the 22.3 release. You can test it now using a dev build.

[tonivade]

I can confirm it's working with the latest dev build.

Thanks a lot!