CustomUnknownFieldExceptionHandler.java

import com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException;
import jakarta.annotation.Priority;
import jakarta.ws.rs.BadRequestException;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.ext.ExceptionMapper;
import jakarta.ws.rs.ext.Provider;
import org.keycloak.common.util.Resteasy;
import org.keycloak.models.KeycloakSession;
import org.keycloak.services.error.KeycloakErrorHandler;

@Priority(Integer.MIN_VALUE)
@Provider
public class CustomUnknownFieldExceptionHandler implements ExceptionMapper<UnrecognizedPropertyException> {

    @Override
    public Response toResponse(UnrecognizedPropertyException exception) {
        return KeycloakErrorHandler.getResponse(Resteasy.getContextData(KeycloakSession.class), new BadRequestException(exception.getMessage()));
    }
}