org.springframework.data.redis.serializer.SerializationException: Cannot deserialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is java.io.InvalidClassException: ch.unil.calendar.core.domain.EventCourses; no valid constructor

import ch.unil.calendar.core.domain.EventCourses;
import org.junit.jupiter.api.Test;
import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
@Test
void should_be_able_to_serialize_and_deserialize_event_courses_with_jdk_redis_serializer() {
EventCourses eventCourses = new EventCourses();
JdkSerializationRedisSerializer serializer = new JdkSerializationRedisSerializer();
byte[] bytes = serializer.serialize(eventCourses);
Object object = serializer.deserialize(bytes);
System.out.println(object);
}