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Posted to issues@activemq.apache.org by "Michael Andre Pearce (JIRA)" <ji...@apache.org> on 2018/09/25 09:53:01 UTC
[jira] [Created] (ARTEMIS-2095) TypedProperties thread safety
Michael Andre Pearce created ARTEMIS-2095:
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Summary: TypedProperties thread safety
Key: ARTEMIS-2095
URL: https://issues.apache.org/jira/browse/ARTEMIS-2095
Project: ActiveMQ Artemis
Issue Type: Bug
Reporter: Michael Andre Pearce
Assignee: Michael Andre Pearce
Whilst TypedProperties is meant to have a single thread acting on it (and this is the most typical interaction), there are occurrences where, it can be acted on by other threads, when this occurs some concurrent modification errors can occur.
As such TypedProperties must be thread safe, but concurrency tuning should factor in to be most performant for single thread.
e.g.
2018-09-24 15:01:27,751 WARN [org.apache.activemq.artemis.core.message.impl.CoreMessage] Error creating String for message: : java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) [rt.jar:1.8.0_102] at java.util.HashMap$EntryIterator.next(HashMap.java:1471) [rt.jar:1.8.0_102] at java.util.HashMap$EntryIterator.next(HashMap.java:1469) [rt.jar:1.8.0_102] at org.apache.activemq.artemis.utils.collections.TypedProperties.toString(TypedProperties.java:464)
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