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From "Goran Hacek (JIRA)" <j...@apache.org>
Subject [jira] Created: (COLLECTIONS-343) Functor singleton classes do not implement singleton pattern correctly
Date Thu, 15 Oct 2009 12:16:31 GMT
Functor singleton classes do not implement singleton pattern correctly
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                 Key: COLLECTIONS-343
                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-343
             Project: Commons Collections
          Issue Type: Bug
          Components: Functor
            Reporter: Goran Hacek
             Fix For: 4.0


All classes in package "org.apache.commons.collections.functors" that advertise that they
have singleton instance actually cannot guarantee that.  Because of serialization support
multiple instances of those classes can exist at runtime.

Following classes are making this false claim:
* CloneTransformer
* ExceptionClosure
* ExceptionFactory
* ExceptionPredicate
* ExceptionTransformer
* FalsePredicate
* NOPClosure
* NOPTransformer
* NotNullPredicate
* NullPredicate
* StringValueTransformer
* TruePredicate

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