`@JsonAnySetter` on field ignoring unrecognized properties if they are declared before the last recognized properties in JSON

[yihtserns]

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• I searched in the issues and found nothing similar.

Describe the bug

Say a bean class only recognize property/field p1, and we have the following JSONs:

{
    "p1": ..., // goes to p1 field
    "p2": ..., // goes to @JsonAnySetter field
    "p3": ... // goes to @JsonAnySetter field
}

{
    "p2": ..., // goes missing ⚠
    "p1": ..., // goes to p1 field
    "p3": ... // goes to @JsonAnySetter field
}


{
    "p2": ..., // goes missing ⚠
    "p3": ..., // goes missing ⚠
    "p1": ... // goes to p1 field
}

Version Information

2.18

Reproduction

public static class Bean {

    private int b;
    private int d;
    @JsonAnySetter
    private Map<String, ?> any;

    @JsonCreator
    public Bean(@JsonProperty("b") int b, @JsonProperty("d") int d) {
        this.b = b;
        this.d = d;
    }
}
...

String json = "{\"a\":1,\"b\":2,\"c\":3,\"d\":4,\"e\":5,\"f\":6}";

Bean bean = new ObjectMapper().readValue(json, Bean.class);
assertEquals(2, bean.b);
assertEquals(4, bean.d);
// failed with:
// org.opentest4j.AssertionFailedError: 
// Expected :{b=2, c=3, e=5, f=6}
// Actual   :{e=5, f=6}
assertEquals(Map.of("a", 1, "c", 3, "e", 5, "f", 6), bean.any);

Expected behavior

No response

Additional context

• Not reproducible for @JsonAnySetter on constructor parameter.
• Not reproducible when I tested by reverting Allow @JsonAnySetter on Creators #4558 on my local machine.

[erdi]

This is clearly a regression and I'm affected by it. Is there a plan to tackle it any time soon, please?

[JooHyukKim]

Not for a while I think, because only recently we released 2.18.0.

I wrote #4738 hopefully enough to fix the issue. but even if it gets merged, timing tho.

[erdi]

The important bit is that there is a fix ready to be merged so that the next release, whenever it happens, will no longer contain the regression. Thanks.

[davsclaus]

Thanks we noticed this too at Apache Camel in the camel-salesforce component
https://issues.apache.org/jira/browse/CAMEL-21346

[cowtowncoder]

Merged for inclusion in 2.18.1