jackson-databind

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Describe the bug

Empty Map values in collections don't get filtered out.

Version Information

2.17.2

Reproduction

Here is code for the corresponding unit test:

    final var objectMapper = new ObjectMapper()
        .setSerializationInclusion(JsonInclude.Include.NON_EMPTY);

    final var payload = Map.of(
        "key", "value",
        "empty", Map.of(),
        "list", List.of(
            Map.of("key", "value"),
            Map.of(),
            Map.of(),
            Map.of("key", "value")));

    final var json = objectMapper.writeValueAsString(payload);
    final var deserialized = (Map<?,?>) objectMapper.readValue(json, Map.class);

    final var expected = Map.of(
        "key", "value",
        "list", List.of(
            Map.of("key", "value"),
            Map.of("key", "value")));

    assertThat(deserialized)
        .isEqualTo(expected);

Expected behavior

It's expected that the test would pass.

Additional context

No response