Two disconnect events are triggered on disconnection

[bearhsu2]

I'm using SmartFoxServer 2.12.3. I face an unusual problem when a user disconnects from server.

I registered a handler for disconnect event:

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 this.addEventHandler(SFSEventType.USER_DISCONNECT, UserDisconnectHandler.class);

Also, I make my handler a single instance:

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@Instantiation(InstantiationMode.SINGLE_INSTANCE)
public class UserDisconnectHandler extends BaseServerEventHandler {...

However, when a user disconnects, SOMETIMES two disconnect events are triggered like this in my smartfox.log:
(some info are blurred for privacy)

07 Mar 2017 | 10:29:23,379 | INFO | SFSWorker:Sys:2 | v2.api.SFSApi | | User disconnected: { Zone: MY_ZONE_GAME }, ( User Name: myUser, Id: 83, Priv: 0, Sess: XXX.227.76.115:56511 ) , SessionLen: 49263, Type: JavaScript
07 Mar 2017 | 10:29:23,379 | INFO | SFSWorker:Sys:1 | v2.api.SFSApi | | User disconnected: { Zone: MY_ZONE_GAME }, ( User Name: myUser, Id: 83, Priv: 0, Sess: XXX.227.76.115:56511 ) , SessionLen: 49264, Type: JavaScript

This causes problems because I have some important processes to do in my disconnect handler.
Did I do anything wrong here? Or does anyone have similar experience?

Many thanks.

[Lapo]

Hi,
do you have a destroy() method in your Extension?
If so make sure that in the first line you have a super.destroy() call, otherwise resources may leak after an Extension restart.

In other words:

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public void destroy()
{
   super.destroy()
   ...
   ... custom code
   ...
}

This is only if you are overriding the method, otherwise, there's no need to add anything.

Cheers