BELUGA BEHR created VFS-480:
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Summary: [VFS] SoftRefFilesCache Doesn't Ever Clear Cache
Key: VFS-480
URL: https://issues.apache.org/jira/browse/VFS-480
Project: Commons VFS
Issue Type: Bug
Affects Versions: 2.0
Reporter: BELUGA BEHR
Priority: Critical
Attachments: AtomicRefThreadTest.java
The SoftRefFilesCache doesn't ever clear its cache. I found this out when I
notice my JVM was sucking up hundreds of megs as it load, processed, and
unloaded, thousands of files.
I have attached an example program that demonstrates the problem with
SoftRefFilesCache.java#startThread(). The thread is never actually launched.
I have only tried it on Java 1.7. Basically, I am trying to demonstrate that
calling AtomicReference#compareAndSet never returns true when "expected" is a
null value. So what happens is that the call returns false, the loop is
re-entered, newThread gets blown away, the thread is found, and the loop exits,
so the thread is never launched. I'm using VFS in a singleton fashion. Well,
I was using it before this issue.
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