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Question 49

Given:

Which annotation do you use on line 1 to ensure that clients immediately time out when attempting to concurrently invoke callMethod () while another client is already accessing the bean?

@AccessTimeout (value = 1, unit = TimeUnit.SECONDS)

@AccessTimeout (null)

@AccessTimeout (-1)

@AccessTimeout (0)

Correct Answer: D

To ensure that clients immediately time out when attempting to concurrently invoke callMethod() while another client is already accessing the bean, you should use @AccessTimeout(0). This annotation specifies that no wait time is allowed, causing the client to immediately time out if the bean is already being accessed by another client.

Discussion

orjavaOption: D

Answer D >0 - (value, TimeUnit) 0 - not wait -1 - wait forever