A.ServletContext

B.HttpSession

C.ServletRequest

D.ServletConfig

A.Validated

B.Staged

C.New

D.Created

E.Deferred

A.The publisher waits for a subscriber, who then consumes it. However, the publisher will time out if no consumer arrives within the given timeout period.

B.The publisher sends the message. However, it is never consumed because there wasn't anything listening when it arrived, regardless of the message timeout length.

C.The publisher successfully sends a message, which will be consumed later, once there is a subscriber, assuming the message hasn't timed out.

D.The message publisher is immediately notified about the lack of subscribers and can decide for itself if, and when, to resend.

A.The transaction will be committed.

B.The transaction will be suspended.

C.The transaction will be rolled back.

A.Create two @onMessage methods in the same endpoint with appropriate parameter types.

B.Define the @onMessage methods in your endpoint with Object as parameter and check the actual type in your code.

C.You can achieve this only by creating separate WebSocket endpoints for each message type.

D.Create two @onMessage methods, each with appropriate decoder attribute in the same endpoint.