Updating from Jackson 2.17 to 2.18 causes KotlinReflectionInternalError

[GFriedrich]

Hey,
I've recently tried to update from Jackson 2.17 to 2.18 and found some issue. The reason I've added this as a Q&A and not as a bug is that I think that Jackson is doing things right (actually more correct than before because of the rewrite for the POJO deserialization), but this now causes issues for me and I need to figure what I have to change.
So after the upgrade I get this stacktrace:

Unknown origin of public abstract operator fun invoke(p1: P1): R defined in kotlin.Function1[FunctionInvokeDescriptor@6dbb395b] (class kotlin.reflect.jvm.internal.impl.builtins.functions.FunctionInvokeDescriptor)
kotlin.reflect.jvm.internal.KotlinReflectionInternalError: Unknown origin of public abstract operator fun invoke(p1: P1): R defined in kotlin.Function1[FunctionInvokeDescriptor@6dbb395b] (class kotlin.reflect.jvm.internal.impl.builtins.functions.FunctionInvokeDescriptor)
	at kotlin.reflect.jvm.internal.RuntimeTypeMapper.mapSignature(RuntimeTypeMapper.kt:226)
	at kotlin.reflect.jvm.internal.KFunctionImpl.<init>(KFunctionImpl.kt:55)
	at kotlin.reflect.jvm.internal.CreateKCallableVisitor.visitFunctionDescriptor(util.kt:314)
	at kotlin.reflect.jvm.internal.CreateKCallableVisitor.visitFunctionDescriptor(util.kt:291)
	at kotlin.reflect.jvm.internal.impl.descriptors.impl.FunctionDescriptorImpl.accept(FunctionDescriptorImpl.java:826)
	at kotlin.reflect.jvm.internal.KDeclarationContainerImpl.getMembers(KDeclarationContainerImpl.kt:62)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.declaredNonStaticMembers_delegate$lambda$22(KClassImpl.kt:173)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.accessor$KClassImpl$Data$lambda10(KClassImpl.kt)
	at kotlin.reflect.jvm.internal.KClassImpl$Data$$Lambda$10.invoke(Unknown Source)
	at kotlin.reflect.jvm.internal.ReflectProperties$LazySoftVal.invoke(ReflectProperties.java:70)
	at kotlin.reflect.jvm.internal.ReflectProperties$Val.getValue(ReflectProperties.java:32)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.getDeclaredNonStaticMembers(KClassImpl.kt:173)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.allNonStaticMembers_delegate$lambda$26(KClassImpl.kt:182)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.accessor$KClassImpl$Data$lambda14(KClassImpl.kt)
	at kotlin.reflect.jvm.internal.KClassImpl$Data$$Lambda$14.invoke(Unknown Source)
	at kotlin.reflect.jvm.internal.ReflectProperties$LazySoftVal.invoke(ReflectProperties.java:70)
	at kotlin.reflect.jvm.internal.ReflectProperties$Val.getValue(ReflectProperties.java:32)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.getAllNonStaticMembers(KClassImpl.kt:182)
	at kotlin.reflect.full.KClasses.getMemberProperties(KClasses.kt:148)
	at com.fasterxml.jackson.module.kotlin.KotlinNamesAnnotationIntrospector.findDefaultCreator(KotlinNamesAnnotationIntrospector.kt:99)
	at com.fasterxml.jackson.databind.introspect.AnnotationIntrospectorPair.findDefaultCreator(AnnotationIntrospectorPair.java:746)
	at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._addCreators(POJOPropertiesCollector.java:669)
	at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.collectAll(POJOPropertiesCollector.java:451)
	at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.getPotentialCreators(POJOPropertiesCollector.java:229)
	at com.fasterxml.jackson.databind.introspect.BasicBeanDescription.getPotentialCreators(BasicBeanDescription.java:348)
	at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory._constructDefaultValueInstantiator(BasicDeserializerFactory.java:251)
	at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.findValueInstantiator(BasicDeserializerFactory.java:219)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.buildBeanDeserializer(BeanDeserializerFactory.java:262)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.createBeanDeserializer(BeanDeserializerFactory.java:151)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:471)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:415)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:317)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:284)
	at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:174)
	at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:659)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:552)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:347)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:284)
	at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:174)
	at com.fasterxml.jackson.databind.DeserializationContext.findContextualValueDeserializer(DeserializationContext.java:636)
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:190)
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:30)
	at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:851)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:563)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:347)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:284)
	at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:174)
	at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(DeserializationContext.java:669)
	at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:5048)
	at com.fasterxml.jackson.databind.ObjectMapper._readValue(ObjectMapper.java:4893)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3105)
	at com.fasterxml.jackson.databind.ObjectMapper.treeToValue(ObjectMapper.java:3539)

The actual class that tries to get a deserializer here uses a property in the constructor which is a "Function1" (aka (xyz) -> abc in Kotlin). The fun fact is that the deserializer will never be used because the property is not part of the serialized data so the lookup of this information will never be used.
Now I'm wondering what to do here. I tracked the problematic line down to the BeanDeserializerFactory which now calls beanDesc.getPotentialCreators() and it didn't in the old version.
This in turn causes some introspection of those "member properties" as seen in the stacktrace, which causes this error.
I'm wondering: Would be the right way to go to place some @JsonIgnore annotations to the properties that are not part of actual serialized data to avoid this kind of introspection done by Jackson?
Thanks in advance for any help.

[pjfanning]

This repo is for Java focused jackson-databind. Could you move this to the jackson-module-kotlin repo?

[GFriedrich]

Oh, my fault. Will do 👍

[GFriedrich]

Thanks for the hint @pjfanning that this question doesn't belong here.
Moved it to FasterXML/jackson-module-kotlin#879