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Does ResourceBundle Cache Automatically?

 
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Does ResourceBundle automatically cache language property files or do we need to write codes to cache language property files?
e.g.
ResourceBundle bundle_1 = ResourceBundle.getBundle(BUNDLE_NAME, locale);
ResourceBundle bundle_2 = ResourceBundle.getBundle(BUNDLE_NAME, locale);

Will above code load the property file again if the locale is same? Or do we need to write our code to cache ResourceBundle object, and return ResourceBundle object if it is loaded for given locale?
 
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From the API documentation of java.util.ResourceBundle:


Cache Management
Resource bundle instances created by the getBundle factory methods are cached by default, and the factory methods return the same resource bundle instance multiple times if it has been cached. getBundle clients may clear the cache, manage the lifetime of cached resource bundle instances using time-to-live values, or specify not to cache resource bundle instances. Refer to the descriptions of the getBundle factory method, clearCache, ResourceBundle.Control.getTimeToLive, and ResourceBundle.Control.needsReload for details.

 
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