Regarding the subscription to multiple users

Platform API JavaScript SDK
1

I would like to confirm the following when using "NotificationHandler.addSubscriptions(NotificationListener<?>> listeners)"
We would appreciate your help with the answers as soon as possible, thank you.
SDKs in use：Platform Client V2 134.0.0(for JAVA)

  1. Is there a size limitation of the list of listeners for the parameter of the method? If so, what is the maximum value?

  2. In the case of an error (Exception is output) in method execution, is it possible to identify the listener that caused the error? If so, please let us know how to identify it.

  3. Are all listeners successfully subscribed if an error (Exception is output) occurs in method execution and the subscription is retried and if you pass a list of listeners to a method that contains listeners that you believe are already subscribed to? If not subscribed, how do we re-subscribe to the listener list?

  4. Is the "addSubscriptions()" thread safe?

  5. If we subscribe 10 subscribers with a listener list that is a parameter to the addSubscriptions method, is the resource consumed by the following limitation correct at 1?

//Limits Notifications

Key:notification.rate.per.minute
Description:The maximum number of notification operations per token per minute
Limit:60
Resource: api/v2/notifications/*

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