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From "Oliver Heger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CONFIGURATION-528) ConfigurationInterpolator class does not load if security manager enabled
Date Mon, 04 Mar 2013 20:51:12 GMT

    [ https://issues.apache.org/jira/browse/CONFIGURATION-528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592617#comment-13592617
] 

Oliver Heger commented on CONFIGURATION-528:
--------------------------------------------

We are currently working on version 2.0 of Commons Configuration, and there have been some
major changes, also in the area of interpolation. The problem you describe is probably solved
in the meantime.

{{ConfigurationInterpolator}} still instantiates default lookups in a static block. However,
{{EnvironmentLookup}} no longer uses {{EnvironmentConfiguration}}; rather it queries the environment
in its {{lookup()}} method. So the security manager should only complain if environment variables
are acutally used for interpolation.

Is this solution okay for you or do you have another proposal?
                
> ConfigurationInterpolator class does not load if security manager enabled
> -------------------------------------------------------------------------
>
>                 Key: CONFIGURATION-528
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-528
>             Project: Commons Configuration
>          Issue Type: Bug
>          Components: Interpolation
>    Affects Versions: 1.9
>            Reporter: Laurent Sauvage
>            Priority: Minor
>
> ConfigurationInterpolator class does not load if security manager is enabled because
its static initializer instantiate EnvironmentLookup which instantiate EnvironmentConfiguration
which use System.getenv()in its constructor. But System.getenv() can fail if RuntimePermission("getenv.*")
is not granted.
> Notice this "bug" is annoying to catch because a NoClassDefFoundError is thrown when
classloading ConfigurationInterpolator without the good AccessControlException showing the
real source of the problem.

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