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From "Oliver Heger (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (CONFIGURATION-224) BaseConfiguration.getProperty() returns reference to intenal store collection object instead of a clone
Date Fri, 22 Sep 2006 17:26:24 GMT
     [ http://issues.apache.org/jira/browse/CONFIGURATION-224?page=all ]

Oliver Heger resolved CONFIGURATION-224.
----------------------------------------

    Fix Version/s: Nightly Builds
       Resolution: Fixed

A comment describing the behavior of getProperty() was added to the Configuration interface.
So I am closing this ticket now. The problems with ConfigurationDynaBean are now dealt with
in ticket CONFIGURATION-227.

> BaseConfiguration.getProperty() returns reference to intenal store collection object
instead of a clone
> -------------------------------------------------------------------------------------------------------
>
>                 Key: CONFIGURATION-224
>                 URL: http://issues.apache.org/jira/browse/CONFIGURATION-224
>             Project: Commons Configuration
>          Issue Type: Bug
>         Environment: 1.3RC2
>            Reporter: Gabriele Garuglieri
>            Priority: Minor
>             Fix For: Nightly Builds
>
>         Attachments: list.patch
>
>
> When the property object is a List or an Array, BaseConfiguration.getProperty() returns
a reference to the object contained in the store.
> This means that changing that object, changes the content of the properties store without
an explicit setProperty() or addProperty(). 
> Also any change to the object in the store will change the object that the code has reference
to, but the user is not aware that the property has changed unless he has added a ConfigurationListener.
> Attached a patch to make the object returned by BaseConfiguration.getProperty() a clone
of store content, to avoid side effects when changing Collection properties.

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