ConcurrentModificationException in MessageAmp.process() (#1268)

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wojciech.kapcia@tigase.net opened 3 years ago

[2021-08-05 10:50:21:845] [SEVERE  ] [            amp-proc-0 ] WorkerThread.run()               : tigase.server.xmppsession.SessionManager$ProcessorWorkerThread,(amp-proc-0) Exception during packet processing: Packet=from=s2s@ip-172-31-38-91.us-west-2.compute.internal, to=sess-man@ip-172-31-20-109.us-west-2.compute.internal, DATA=<message id="ab07a" xmlns="jabber:client" to="…@jabber.today" type="chat" from="…@….org/DESKTOP-…">
<body>?OTR:…=.</body>
<active xmlns="http://jabber.org/protocol/chatstates"/>
<request xmlns="urn:xmpp:receipts"/>
<nick xmlns="http://jabber.org/protocol/nick">…</nick>
<encryption xmlns="urn:xmpp:eme:0" namespace="urn:xmpp:otr:0"/>
<no-permanent-store xmlns="urn:xmpp:hints"/>

</message>, SIZE=943, XMLNS=jabber:client, PRIORITY=NORMAL, PERMISSION=AUTH, TYPE=chat, STABLE_ID=c61f588f-fb10-4613-8be2-9b3859c6756a, connection=XMPPResourceConnection=[user_jid=…@jabber.today/306419194-tigase-4350, packets=28, connectioId=c2s@ip-172-31-20-109.us-west-2.compute.internal/172.21.0.2_5222_172.31.31.162_32494, domain=….today, authState=AUTHORIZED, isAnon=false, isTmp=false, parentSession hash=1741604756, parentSession liveTime=68823]
java.util.ConcurrentModificationException
	at java.base/java.util.LinkedList$ListItr.checkForComodification(Unknown Source)
	at java.base/java.util.LinkedList$ListItr.next(Unknown Source)
	at tigase.xml.Element.getChild(Element.java:567)
	at tigase.xmpp.impl.MessageAmp.process(MessageAmp.java:251)
	at tigase.server.xmppsession.SessionManager$ProcessorWorkerThread.process(SessionManager.java:2656)
	at tigase.util.processing.WorkerThread.run(WorkerThread.java:67)

wojciech.kapcia@tigase.net commented 3 years ago

Can't reproduce nor didn't happen again.

Type	Bug
Priority	Normal
Assignee	wojciech.kapcia@tigase.net
Version	tigase-server-8.2.0
Spent time	1h

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Reference

tigase/_server/server-core#1268