userLost null user

evilyummycandy · Post by **evilyummycandy** » 12 Aug 2010, 18:28

This is a strange error and hard to reproduce but I am unable to pull any data from the InternalEventObject when a user is lost in a specif way.

What I mean by that is it only happens to users who have been kicked due to extended idle time because their flash client/browser has crashed. Because this only happens to users who's flash player/browser has crashed it is not easy to reproduce. But under all other circumstances the userLost works perfectly fine, including when a user is kicked for being idle( without client crash ).

Relative server logs:
INFO | jvm 1 | 2010/08/12 11:16:22 | [EVENT NAME] : userLost
INFO | jvm 1 | 2010/08/12 11:16:22 | 11:16:22.410 - [ WARNING ] > Exception during userLost event handling: java.lang.NullPointerException
INFO | jvm 1 | 2010/08/12 11:16:22 | 11:16:22.410 - [ INFO ] > User Guest5 has been kicked.

Code: Select all

if ( evtName.equals( "userLost" )){

            //_pRemovePlayer.removeFromServer( ( User ) ieo.getObject( "user" ) );
            _pRemovePlayer.removeFromServerById( Integer.valueOf( ieo.getParam( "uid" ) ).intValue() );
            
        }

As a result of this I am unable to clear certain data related to the user because I am unable to get to the userId. I'm sure someone else has come across something similar to this by now or maybe I'm totally missing something but I'm just stuck on this at the moment and would appreciate any help.

BigFIsh · Post by **BigFIsh** » 12 Aug 2010, 21:56

Do you have <AutoReloadExtensions> set to true for your zone? If so, this probably caused the problem you're seeing since reloading extensions dynamically would probably re-initialized your local variables.

evilyummycandy · Post by **evilyummycandy** » 12 Aug 2010, 23:13

No <AutoReloadExtensions> is not set to true

BigFIsh · Post by **BigFIsh** » 13 Aug 2010, 02:29

Ah, I was thinking of an different warning message. I received something similar to yours when I reloaded my extension and then disconnected myself from SFS.

Hrm, 'Exception during userLost event handling' is a different one. In this case, I would have no clue. This havn't been reported before.

What is your SFS version?

evilyummycandy · Post by **evilyummycandy** » 13 Aug 2010, 03:06

I'm currently running 1.6.6

Post by **Lapo** » 23 Aug 2010, 20:31

Please update the server to the latest 1.6.9 and report if it helps handling the null pointer in the exception report.
http://forums.smartfoxserver.com/viewtopic.php?t=8233

evilyummycandy · Post by **evilyummycandy** » 26 Aug 2010, 04:31

Updated to 1.6.9 and the issue is still present

Post by **Lapo** » 30 Aug 2010, 05:29

Try adding a try/catch block around your code and output the stack trace so that you can see exactly where the null pointer is coming from.

evilyummycandy · Post by **evilyummycandy** » 03 Sep 2010, 18:35

After lots and lots of testing I've come to the conclusion that it is not smartfox userLost event causing the problem, it is the ending result of the problem. The problem source itself was somewhere entirely different, sorry for the mixup. This can be closed.

Post by **Lapo** » 06 Sep 2010, 12:41

Ok, just to better understand could you expand on this a bit more?