Command mode applications: using a QuarkusApplication from a dependency not working? #33324

hariso · 2023-05-12T08:34:48Z

hariso
May 12, 2023

Hello everyone!

Firstly, thanks for such a great project! I'm experimenting with it for the last few days and I'm impressed with its features, especially the ease of creating native images!

I'm writing a Java SDK for another open-source project. The goal for the SDK is to provide a high-level API but also to provide an easy way to build a project into a single binary.

A simplified version can be found here: https://github.com/hariso/quarkus-main-method-test/tree/main-method-in-dependency.

test-sdk is the SDK providing a Quarkus main method which does some bootstrapping. test-project is a project using the SDK.

Here's the problem: when I try to use the SDKQuarkusApp (which is in test-sdk) in the project, I get the following error:

2023-05-12 10:19:17,852 haris-laptop [440471] INFO  [io.quarkus] (main) test-project 1.0-SNAPSHOT native (powered by Quarkus 3.0.2.Final) started in 0.018s. Listening on: http://0.0.0.0:8080
2023-05-12 10:19:17,853 haris-laptop [440471] INFO  [io.quarkus] (main) Profile prod activated. 
2023-05-12 10:19:17,853 haris-laptop [440471] INFO  [io.quarkus] (main) Installed features: [cdi, resteasy-reactive, smallrye-context-propagation, vertx]
2023-05-12 10:19:17,853 haris-laptop [440471] ERROR [io.qua.run.Application] (main) Failed to start application (with profile [prod]): java.lang.NoSuchMethodException: org.example.SDKQuarkusApp.<init>()
	at [email protected]/java.lang.Class.getConstructor0(DynamicHub.java:3585)
	at [email protected]/java.lang.Class.getDeclaredConstructor(DynamicHub.java:2754)
	at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:125)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:71)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:44)
	at org.foobar.ProjectMain.main(ProjectMain.java:9)

2023-05-12 10:19:17,854 haris-laptop [440471] INFO  [io.quarkus] (main) test-project stopped in 0.001s

I believe that the error is misleading because the constructor exists, without a doubt. Also, when I simply copy and paste the class into test-project it works. So it's not about the class itself, but it's about how it's discovered.

Anyway, my question is: is this use case expected to work?