Robbie Gemmell created ARTEMIS-4417:
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Summary: AbstractJournalStorageManager storeKeyValuePair +
deleteKeyValuePair are not thread safe
Key: ARTEMIS-4417
URL: https://issues.apache.org/jira/browse/ARTEMIS-4417
Project: ActiveMQ Artemis
Issue Type: Bug
Components: Balancer
Affects Versions: 2.30.0
Reporter: Robbie Gemmell
Fix For: 2.31.0
Continuing on from ARTEMIS-4406, the calls to AbstractJournalStorageManager
storeKeyValuePair + deleteKeyValuePair used by LocalCache as part of the
connection-router implementation are themselves also not entirely thread safe.
A ConcurrentHashMap is used for the initial structure, however a regular
HashMap sub-map is then stored within the concurrent outer map, which can then
also be accessed concurrently, meaning the methods aren't currently thread
safe; it also needs to be a ConcurrentHashMap.
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