NullPointerException while managing a session in daemon mode with "WebSockets" add-on installed

[GoogleCodeExporter]

Steps to reproduce the issue:
1. Run ZAP in daemon mode with "WebSockets" add-on installed;
2. Create a new session (or save/open an existing session);
3. Check the log file, there should be some NullPointerException exceptions:
[...]
2013-03-28 19:40:55,016 ERROR ExtensionLoader - 
java.lang.NullPointerException
    at org.zaproxy.zap.extension.websocket.ExtensionWebSocket.sessionAboutToChange(Unknown Source)
    at org.parosproxy.paros.extension.ExtensionLoader.sessionAboutToChangeAllPlugin(Unknown Source)
    at org.parosproxy.paros.control.Control.discardSession(Unknown Source)
    at org.zaproxy.zap.extension.api.CoreAPI.handleApiAction(Unknown Source)
    at org.zaproxy.zap.extension.api.API.handleApiRequest(Unknown Source)
    at org.parosproxy.paros.core.proxy.ProxyThread.processHttp(Unknown Source)
    at org.parosproxy.paros.core.proxy.ProxyThread.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:722)
[...]

Add-on version:
"WebSockets " version 2.

Original issue reported on code.google.com by THC...@gmail.com on 30 Mar 2013 at 1:21

[GoogleCodeExporter]

https://code.google.com/p/zap-extensions/source/detail?r=412

Original comment by THC...@gmail.com on 30 Mar 2013 at 1:42

• Changed state: Committed

[GoogleCodeExporter]

Original comment by psii...@gmail.com on 2 Apr 2013 at 9:48

• Added labels: Build-20130402

[GoogleCodeExporter]

Fixed in 2.1.0

Original comment by psii...@gmail.com on 18 Apr 2013 at 9:49

• Changed state: Fixed