Unable to use Jackson AfterBurner or BlackBird modules

[loicmathieu]

Expected Behavior

We can use either Jackson AfterBurner or BalckBird modules.

Actual Behaviour

Adding either AfterBurner or BlackBird module in the classpath will make our Micronaut application crashing with

Caused by: java.lang.UnsupportedOperationException
	at java.base/java.util.ImmutableCollections.uoe(ImmutableCollections.java:142)
	at java.base/java.util.ImmutableCollections$ListItr.set(ImmutableCollections.java:426)
	at com.fasterxml.jackson.module.afterburner.ser.SerializerModifier.findProperties(SerializerModifier.java:143)
	at com.fasterxml.jackson.module.afterburner.ser.SerializerModifier.changeProperties(SerializerModifier.java:52)
	at com.fasterxml.jackson.databind.ser.BeanSerializerFactory.constructBeanOrAddOnSerializer(BeanSerializerFactory.java:415)
	at com.fasterxml.jackson.databind.ser.BeanSerializerFactory.findBeanOrAddOnSerializer(BeanSerializerFactory.java:295)
	at com.fasterxml.jackson.databind.ser.BeanSerializerFactory._createSerializer2(BeanSerializerFactory.java:240)
	at com.fasterxml.jackson.databind.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:174)
	at com.fasterxml.jackson.databind.SerializerProvider._createUntypedSerializer(SerializerProvider.java:1523)
	at com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1491)
	at com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:619)
	at com.fasterxml.jackson.databind.SerializerProvider.findTypedValueSerializer(SerializerProvider.java:901)
	at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.forRootType(ObjectWriter.java:1547)
	at com.fasterxml.jackson.databind.ObjectWriter.<init>(ObjectWriter.java:116)
	at com.fasterxml.jackson.databind.ObjectMapper._newWriter(ObjectMapper.java:840)
	at com.fasterxml.jackson.databind.ObjectMapper.writerFor(ObjectMapper.java:4187)
	at io.micronaut.jackson.databind.JacksonDatabindMapper.createWriter(JacksonDatabindMapper.java:147)
	at io.micronaut.jackson.databind.JacksonDatabindMapper.<init>(JacksonDatabindMapper.java:101)
	at io.micronaut.jackson.databind.JacksonDatabindMapper.createSpecific(JacksonDatabindMapper.java:118)
	at io.micronaut.json.body.JsonMessageHandler.createSpecific(JsonMessageHandler.java:97)
	at io.micronaut.http.netty.body.NettyJsonHandler.createSpecific(NettyJsonHandler.java:150)
	at io.micronaut.web.router.DefaultRouteInfo.lambda$new$0(DefaultRouteInfo.java:97)
	at java.base/java.util.Optional.map(Optional.java:260)
	at io.micronaut.web.router.DefaultRouteInfo.<init>(DefaultRouteInfo.java:97)
	at io.micronaut.web.router.DefaultMethodBasedRouteInfo.<init>(DefaultMethodBasedRouteInfo.java:75)
	at io.micronaut.web.router.DefaultRequestMatcher.<init>(DefaultRequestMatcher.java:51)
	at io.micronaut.web.router.DefaultUrlRouteInfo.<init>(DefaultUrlRouteInfo.java:74)
	at io.micronaut.web.router.DefaultRouteBuilder$DefaultUriRoute.toRouteInfo(DefaultRouteBuilder.java:872)
	at io.micronaut.web.router.DefaultRouter.<init>(DefaultRouter.java:112)
	at io.micronaut.web.router.$DefaultRouter$Definition.instantiate(Unknown Source)
	at io.micronaut.context.DefaultBeanContext.resolveByBeanFactory(DefaultBeanContext.java:2330)

Steps To Reproduce

No response

Environment Information

• OS: Ubutu 24.04
• Java 21

Example Application

No response

Version

4.6.3

[yawkat]

You might have to disable the bean introspection module

[graemerocher]

if you are using the bean introspection module then afterburner and/or blackbird will provide zero benefit since the bean introspection module is already eliminating reflection. All that will be achieved in moving the byte code generation from compile time to runtime.

That said as per @yawkat if you want to use these modules for some unknown reason then you have to disable the bean introspection module

[loicmathieu]

@yawkat the same issue occurs if I disable the bean introspection module.

@graemerocher we have our own Jackson mapper that we use in a bunch of places (JSONB support, Kafka, ION support, ...) I'm not sure we can use the bean instrospection module for that with the same performance advantage. Would it mandate to have all classes annotation with @Introspected to generate serializer and deserializer?

[graemerocher]

then it seems to be a Jackson bug