Classes with @Funq methods fail in constructor injection for normal scoped bean

[michalvavrik]

Describe the bug

When class that is normal scoped bean has method annotated with @Funq and uses constructor injection, an exception is thrown. I looked into this and the reason is that when (and only when!) class does extend SomeClass and there is no default constructor without args, Funqy generates it for us here

quarkus/extensions/funqy/funqy-server-common/deployment/src/main/java/io/quarkus/funqy/deployment/FunctionScannerBuildStep.java

Line 176 in b9d7536

if (!(classInfo.superClassType() != null && classInfo.superClassType().name().equals(DotNames.OBJECT))) {

but Quarkus Arc does too for normal scoped beans unless a bean class extends a class that does not declare a no-args constructor.

Expected behavior

Constructor injection for normal scoped beans works just fine.

Actual behavior

An exception is thrown: Exception in thread "main" java.lang.reflect.InvocationTargetException
Caused by: java.lang.ClassFormatError: Duplicate method name "<init>" with signature "()V" in class file io/quarkus/funqy/deployment/DependencyInjectionTest$HiFunction

How to Reproduce?

1. git clone https://github.com/michalvavrik/funqy-knative-events-constructor-injection-reproducer.git
2. mvn clean verify

Output of uname -a or ver

Linux fedora 5.19.4-200.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Aug 25 17:42:04 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Output of java -version

openjdk version "17.0.3" 2022-04-19

GraalVM version (if different from Java)

GraalVM CE 22.1.0

Quarkus version or git rev

999-SNAPSHOT

Build tool (ie. output of mvnw --version or gradlew --version)

Apache Maven 3.8.6

Additional information

No response

[quarkus-bot]

/cc @geoand, @iocanel, @manovotn, @matejvasek, @mkouba, @patriot1burke

[michalvavrik]

I couldn't reproduce it in JUnit test in quarkus-funqy-server-common, but I still can reproduce it with app using Funqy knative-events. I'll provide full reproducer later today.

UPDATE: added reproducer as it's related to normal scope beans