Wiktor N created JCS-171:
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Summary: Multiple CacheEventQueue.QProcessor spawned for the same
cache region
Key: JCS-171
URL: https://issues.apache.org/jira/browse/JCS-171
Project: Commons JCS
Issue Type: Bug
Components: Composite Cache
Affects Versions: jcs-2.0
Reporter: Wiktor N
I noticed that running on new version of JCS I get multiple
CacheEventQueue.QProcessor thread. They spawn from time to time.
I've checked recent changes and changes few things in r1774925 look suspicious:
1. In previous code we spawned a new thread in synchronized section. This got
us a guarantee, that there will be no two threads trying to spawn a new thread
in the same time. Maybe some locking is needed around thread creation?
2. QProcessor uses isAlive() method. But this is defined by Thread.isAlive()
while it should probably check for CacheEventQueue.this.isAlive()
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