Jackson 3 (rc7) deserialization of class with public final Field quietly fails #5253
Description
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Describe the bug
The attached class works correctly on Jackson 2 - but errors on Jackson 3.
Version Information
jackson-databind-3.0.0-rc7
Reproduction
Class:
package j3bug;
import java.util.HashMap;
import java.util.Map;
public class DateTimeParserState {
public int sampleCount;
public int nullCount;
public int blankCount;
public int invalidCount;
public final Map<String, Integer> results;
public DateTimeParserState() {
results = new HashMap<>();
}
}Driver:
package j3bug;
import java.util.Locale;
import tools.jackson.core.StreamReadFeature;
import tools.jackson.databind.ObjectMapper;
import tools.jackson.databind.json.JsonMapper;
public abstract class J3bug {
public static void main(String[] args) {
ObjectMapper mapper = JsonMapper.builder().enable(StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION).build();
DateTimeParserState state = new DateTimeParserState();
state.results.put("hello", 1);
String serialized = mapper.writeValueAsString(state);
DateTimeParserState post = mapper.readValue(serialized, DateTimeParserState.class);
if (post.results.size() != 1) {
System.err.println("Houston, we have a problem!");
System.exit(1);
}
}
}Expected behavior
Expected Map to be restored to its former glory (i.e. one entry) when deserialized.
Additional context
No response