Bernd Eckenfels created VFS-745:
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Summary: GetOrCreateFilesystemCaches might return unused Map
Key: VFS-745
URL: https://issues.apache.org/jira/browse/VFS-745
Project: Commons VFS
Issue Type: Bug
Affects Versions: 2.4.1
Reporter: Bernd Eckenfels
The LRauFilesCache implementations contains a `getOrCreateFilesystemCache`
which uses putIfAbsent, however the returned cache might not be the one (not)
put into the filesystemCaches map.
https://github.com/apache/commons-vfs/blob/b6fb9a392d9510ce039e55a26a47ed85750a4386/commons-vfs2/src/main/java/org/apache/commons/vfs2/cache/LRUFilesCache.java#L192
Also this should be probably inside the write lock, and the getFile should have
the optimization not to create a filesystem entry like DefaultFilesCache does.
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