yair ogen created CONFIGURATION-530:
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             Summary: AbstractFileConfiguration.getProperty(String key) locking 
causes thread hault
                 Key: CONFIGURATION-530
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-530
             Project: Commons Configuration
          Issue Type: Bug
          Components: File reloading
    Affects Versions: 1.9
            Reporter: yair ogen
            Priority: Critical


Every call to getProperty causes a lock (related to the reload functionality). 
In a near real-time system where we have many concurrent threads this affects 
heavily on the application TPS. 

Possible solution will be: getProperty only returns current value. Reload when 
needed occurs in a background thread that updates the in-memory map (perhaps by 
using CopyOnWrite collections?).

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