// Test that boolean methods return consistent values across multiple calls
        boolean firstNullsSuppressed = provider.isNullsSuppressed();
        boolean secondNullsSuppressed = provider.isNullsSuppressed();
        boolean thirdNullsSuppressed = provider.isNullsSuppressed();

        assertEquals(firstNullsSuppressed, secondNullsSuppressed);
        assertEquals(secondNullsSuppressed, thirdNullsSuppressed);

import org.lastaflute.core.json.JsonMappingOption.JsonFieldNaming;
import org.lastaflute.core.json.JsonResourceProvider;

public class FessJsonResourceProvider implements JsonResourceProvider {
    @Override
    public boolean isNullsSuppressed() {
        return true;
    }

    @Override
    public boolean isPrettyPrintSuppressed() {
        return false;
    }

    @Override
    public JsonMappingOption provideMappingOption() {