Specific gateway events are triggering a StackOverflowError when printing the RawGatewayEvent.package

[MrPowerGamerBR]

General Troubleshooting

• I have checked for similar issues on the Issue-tracker.
• I have updated to the latest JDA version
• I have checked the branches or the maintainers' PRs for upcoming bug fixes.

Expected Behaviour

When printing the gateway event, a StackOverflowError shouldn't happen.

However, specific events (from what I've noticed, MESSAGE_CREATE and MESSAGE_UPDATE) triggers a StackOverflowError.

This does not happen if you print the event before it is processed by JDA, so it looks like something when processing the event causes a cyclic dependency to happen in the DataObject, which triggers this error.

Code Example for Reproduction Steps

override fun onRawGateway(event: RawGatewayEvent) {
        try {
            println(event.type)
            println(event.`package`)
        } catch (e: Error) {
            println("Something went wrong!")
            println(e.stackTraceToString().take(1000))
        }
    }

Code for JDABuilder or DefaultShardManagerBuilder used

JDABuilder.createDefault("owo")
        .setRawEventsEnabled(true)
        .addEventListeners(
            object: ListenerAdapter() {
                override fun onRawGateway(event: RawGatewayEvent) {
                    try {
                        println(event.type)
                        println(event.`package`)
                    } catch (e: Error) {
                        println("Something went wrong!")
                        println(e.stackTraceToString().take(1000))
                    }
                }
            }
        )
        .build()

Exception or Error

MESSAGE_CREATE
Something went wrong!
java.lang.StackOverflowError
	at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:69)
	at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:18)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:808)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithoutTypeInfo(MapSerializer.java:764)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:720)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:35)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:808)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithoutTypeInfo(MapSerializer.java:764)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:720)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(Ma

MESSAGE_UPDATE
Something went wrong!
java.lang.StackOverflowError
	at com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.forSerialization(BasicClassIntrospector.java:80)
	at com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.forSerialization(BasicClassIntrospector.java:11)
	at com.fasterxml.jackson.databind.SerializationConfig.introspect(SerializationConfig.java:862)
	at com.fasterxml.jackson.databind.ser.BasicSerializerFactory.createKeySerializer(BasicSerializerFactory.java:210)
	at com.fasterxml.jackson.databind.SerializerProvider.findKeySerializer(SerializerProvider.java:903)
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.createContextual(MapSerializer.java:516)
	at com.fasterxml.jackson.databind.SerializerProvider.handleSecondaryContextualization(SerializerProvider.java:1113)
	at com.fasterxml.jackson.databind.SerializerProvider.findContentValueSerializer(SerializerProvider.java:788)
	at com.fasterxml.jackson.databind.ser.impl.PropertySerializerMap.findAndAddSecondarySeri