Customizing Jackson deserialization to ignore unknown properties does not work for ErrorResponse

[wedgec]

Description
This is related to Issue 81. I am working with a SCIM provider that includes non-standard attributes on their urn:ietf:params:scim:api:messages:2.0:Error objects, causing deserialization to fail. I tried customizing deserialization by setting JsonUtils' MapperFactory, but to no effect.

To Reproduce
Here's a code snippet for reproducing issue. Note the non-standard attributes in the ErrorResponse JSON, code, entity_id, and message.

String errorResponseJson =
    """
        {
            "code": "uniqueness",
            "entity_id": "thanh.veum",
            "message": "Another user already exists with this username 'thanh.veum'",
            "detail": "Another user already exists with this username 'thanh.veum'",
            "schemas": [
                "urn:ietf:params:scim:api:messages:2.0:Error"
            ],
            "status": 409
        }""";

MapperFactory factory = new MapperFactory();
factory.setDeserializationCustomFeatures(Map.of(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false));
JsonUtils.setCustomMapperFactory(factory);

// Throws exception
JsonUtils
    .getObjectReader()
    .forType(ErrorResponse.class)
    .readValue(errorResponseJson);

Here's the stack trace that results:

Exception in thread "main" com.fasterxml.jackson.databind.JsonMappingException: Core attribute message is undefined for schema urn:ietf:params:scim:api:messages:2.0:Error
	at com.fasterxml.jackson.databind.deser.SettableAnyProperty._throwAsIOE(SettableAnyProperty.java:304)
	at com.fasterxml.jackson.databind.deser.SettableAnyProperty.set(SettableAnyProperty.java:267)
	at com.fasterxml.jackson.databind.deser.impl.PropertyValue$Any.assign(PropertyValue.java:101)
	at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:223)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:453)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1497)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:348)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:185)
	at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:342)
	at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:2125)
	at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1566)
	at scratch.Scratch.main(Scratch.java:35)
Caused by: com.unboundid.scim2.common.exceptions.BadRequestException: Core attribute message is undefined for schema urn:ietf:params:scim:api:messages:2.0:Error
	at com.unboundid.scim2.common.exceptions.BadRequestException.invalidSyntax(BadRequestException.java:270)
	at com.unboundid.scim2.common.BaseScimResource.setAny(BaseScimResource.java:231)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at com.fasterxml.jackson.databind.introspect.AnnotatedMethod.callOnWith(AnnotatedMethod.java:118)
	at com.fasterxml.jackson.databind.deser.SettableAnyProperty$MethodAnyProperty._set(SettableAnyProperty.java:363)
	at com.fasterxml.jackson.databind.deser.SettableAnyProperty.set(SettableAnyProperty.java:263)
	... 10 more
Caused by: com.unboundid.scim2.common.exceptions.BadRequestException: Core attribute message is undefined for schema urn:ietf:params:scim:api:messages:2.0:Error

Expected behavior
I would expect deserialization to succeed, with the resulting Java object constructed on the basis on the standard attributes only.

Additional context

• Jackson version: 2.18.2
• SCIM 2 SDK version: 3.2.0

[kqarryzada]

Hi @wedgec, apologies that I haven't gotten a chance to look at this yet. I will try to reproduce this next week.