Demonstrator for #1256

This demonstrator is based on spring-session-samples/spring-session-sample-boot-redis-json

The test classes will demonstrate serialization issues when GenericJackson2JsonRedisSerializer is used in combination with common Spring Beans (e.g. DestructionCallbackBindingListener). These Beans which will be added to the session when using @SessionScoped Beans and having a @PreDestroy annotated method defined.

It also demonstrates that the @PreDestory annotated method will not be invoked after logout when the default JdkSerializationRedisSerializer is used. Both case can be reproduced by running the Test or the Application.

Precondition

The SessionScopedBean is initialized by adding an attribute to the session.

Using GenericJackson2JsonRedisSerializer

Run HttpRedisJsonTest, an exception occurs due to missing default c-tors.

java.io.IOException: org.springframework.data.redis.serializer.SerializationException: Could not read JSON:Cannot construct instance of `org.springframework.beans.factory.support.DisposableBeanAdapter` (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 185] (through reference chain: org.springframework.web.context.request.DestructionCallbackBindingListener["destructionCallback"]) 
java.lang.RuntimeException: java.io.IOException: org.springframework.data.redis.serializer.SerializationException: Could not read JSON:Cannot construct instance of `org.springframework.beans.factory.support.DisposableBeanAdapter` (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 185] (through reference chain: org.springframework.web.context.request.DestructionCallbackBindingListener["destructionCallback"]) 

Removing the DestructionCallbackBindingListenerMixIn from the ObjectMapper configuration in SessionConfig the error occurs when deserializing the DestructionCallbackBindingListener.

Using JdkSerializationRedisSerializer

Run HomeJdkTest Here, serialization and deserialization seem to work but the @PreDestroy annotated method in the SessionScopedBean is not executed.