- **summary**: LeaveExtensions not synchronized --> Shutdown of communication
is too lazy
- Description has changed:
Diff:
~~~~
--- old
+++ new
@@ -1,4 +1,4 @@
-If the host of a session leaves and thus throws all participants out, the
following exception might occur if AbstractSessionListener.sessionEnded\(\) is
executed before AbstractSharedProjectListener.userLeft\(\) in the EditorManager
\(race condition\). In this case the SharedProject is already null when it is
used in userLeft\(\).
+<s>If the host of a session leaves and thus throws all participants out, the
following exception might occur if AbstractSessionListener.sessionEnded\(\) is
executed before AbstractSharedProjectListener.userLeft\(\) in the EditorManager
\(race condition\). In this case the SharedProject is already null when it is
used in userLeft\(\).
java.lang.NullPointerException
at
de.fu\_berlin.inf.dpp.editor.EditorManager$2.userLeft\(EditorManager.java:436\)
@@ -14,4 +14,4 @@
at java.util.concurrent.FutureTask.run\(Unknown Source\)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask\(Unknown
Source\)
at java.util.concurrent.ThreadPoolExecutor$Worker.run\(Unknown Source\)
- at java.lang.Thread.run\(Unknown Source\)
+ at java.lang.Thread.run\(Unknown Source\)</s>
~~~~
- **Group**: --> 13.3.29
- **Priority**: 3 --> 5
---
** [bugs:#201] Shutdown of communication is too lazy**
**Status:** open
**Labels:** Main
**Created:** Thu Apr 23, 2009 01:37 PM UTC by Lisa Dohrmann
**Last Updated:** Mon Apr 04, 2011 08:23 AM UTC
**Owner:** nobody
<s>If the host of a session leaves and thus throws all participants out, the
following exception might occur if AbstractSessionListener.sessionEnded\(\) is
executed before AbstractSharedProjectListener.userLeft\(\) in the EditorManager
\(race condition\). In this case the SharedProject is already null when it is
used in userLeft\(\).
java.lang.NullPointerException
at
de.fu\_berlin.inf.dpp.editor.EditorManager$2.userLeft\(EditorManager.java:436\)
at
de.fu\_berlin.inf.dpp.project.internal.SharedProject.removeUser\(SharedProject.java:244\)
at
de.fu\_berlin.inf.dpp.net.business.LeaveHandler.leaveReceived\(LeaveHandler.java:49\)
at
de.fu\_berlin.inf.dpp.net.internal.extensions.LeaveExtension.processMessage\(LeaveExtension.java:33\)
at
de.fu\_berlin.inf.dpp.net.internal.extensions.SarosDefaultPacketExtension.processPacket\(SarosDefaultPacketExtension.java:32\)
at
de.fu\_berlin.inf.dpp.net.internal.XMPPChatReceiver.processPacket\(XMPPChatReceiver.java:68\)
at
de.fu\_berlin.inf.dpp.net.internal.XMPPChatTransmitter$XMPPChatTransmitterPacketListener$1.run\(XMPPChatTransmitter.java:151\)
at de.fu\_berlin.inf.dpp.util.Util$6.run\(Util.java:357\)
at java.util.concurrent.Executors$RunnableAdapter.call\(Unknown Source\)
at java.util.concurrent.FutureTask$Sync.innerRun\(Unknown Source\)
at java.util.concurrent.FutureTask.run\(Unknown Source\)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask\(Unknown
Source\)
at java.util.concurrent.ThreadPoolExecutor$Worker.run\(Unknown Source\)
at java.lang.Thread.run\(Unknown Source\)</s>
---
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