Jackson 2.19.0 issues

[manusa]

          Just FYI: We use Jackson in our K8s related projects and also got this update via Renovate today. We are using Gradle, so bumping Jackson in our dependencies will indirectly also bump it for the fabric8 client. I've seen two issues so far (just in case those are not covered by the existing tests).

NullPointerException

No further invesigation, but saw this stack trace in one of our update PRs:

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Cannot invoke "com.fasterxml.jackson.databind.JsonSerializer.serialize(Object, com.fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider)" because "keySerializer" is null (through reference chain: io.fabric8.kubernetes.api.model.ConfigMap["metadata"]->io.fabric8.kubernetes.api.model.ObjectMeta["managedFields"]->java.util.ArrayList[0]->io.fabric8.kubernetes.api.model.ManagedFieldsEntry["fieldsV1"]->io.fabric8.kubernetes.api.model.FieldsV1["getAdditionalProperties"]->java.util.LinkedHashMap["f:data"])
	at app//com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:400)
	at app//com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:359)
	at app//com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:324)
	at app//com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:810)
	at app//com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithoutTypeInfo(MapSerializer.java:763)
	at app//com.fasterxml.jackson.databind.ser.AnyGetterWriter.getAndSerialize(AnyGetterWriter.java:81)
	at app//com.fasterxml.jackson.databind.ser.AnyGetterWriter.serializeAsField(AnyGetterWriter.java:89)
	at app//io.fabric8.kubernetes.model.jackson.BeanPropertyWriterDelegate.serializeAsField(BeanPropertyWriterDelegate.java:68)
	at app//com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:760)
	at app//com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:183)
	at app//com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732)
	at app//io.fabric8.kubernetes.model.jackson.BeanPropertyWriterDelegate.serializeAsField(BeanPropertyWriterDelegate.java:68)
	at app//com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:760)
	at app//com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:183)
	at app//com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:119)
	at app//com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:79)
	at app//com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:18)
	at app//com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732)
	at app//io.fabric8.kubernetes.model.jackson.BeanPropertyWriterDelegate.serializeAsField(BeanPropertyWriterDelegate.java:68)
	at app//com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:760)
	at app//com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:183)
	at app//com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732)
	at app//io.fabric8.kubernetes.model.jackson.BeanPropertyWriterDelegate.serializeAsField(BeanPropertyWriterDelegate.java:68)
	at app//com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:760)
	at app//com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:183)
	at app//com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:503)
	at app//com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:342)
	at app//com.fasterxml.jackson.databind.ObjectMapper._writeValueAndClose(ObjectMapper.java:4859)
	at app//com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:4079)
	at app//io.fabric8.kubernetes.client.utils.KubernetesSerialization.asJson(KubernetesSerialization.java:172)
	... 10 more
Caused by: java.lang.NullPointerException: Cannot invoke "com.fasterxml.jackson.databind.JsonSerializer.serialize(Object, com.fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider)" because "keySerializer" is null
	at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:796)
	... 36 more

CRD generation

With this Gradle build script the generated CRD has a ton of new additionalProperties:

getAdditionalProperties:
  additionalProperties:
    type: "object"
  type: "object"

Originally posted by @Donnerbart in #7035 (comment)

[JuergenKindler]

Also see this happening - breaks applying kubectl manifests we use.
( Got hit by that via dependabot automatically updating from 7.1.0 to 7.2.0 )