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https://issues.apache.org/jira/browse/CONFIGURATION-834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17741749#comment-17741749
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Gary D. Gregory commented on CONFIGURATION-834:
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Hi [~kbarlowgw]
Thank you for your report.
Would you please create a PR on GitHub with a unit test?
> ConfirgurationPropertySource doesn't supply resolved values.
> ------------------------------------------------------------
>
> Key: CONFIGURATION-834
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-834
> Project: Commons Configuration
> Issue Type: Bug
> Components: Interpolation, Type conversion
> Affects Versions: 2.8.0
> Reporter: Keith Barlow
> Priority: Minor
>
> Per
> [https://commons.apache.org/proper/commons-configuration/userguide/howto_utilities.html#Use_Configuration_in_Spring,]
> we should be able to supply a Configuration to Spring using a
> ConfigurationPropertySource to tell spring to obtain property values from
> Commons Configuration2, however it seems that the ConfigurationPropertySource
> uses getProperty() instead of getString() to supply values to Spring. This
> means that the value supplied to string is the literal element from the
> configuration file and not the value resolved by Apache Commons
> Configuration2. This ultimately leads to Spring trying to parse a syntax it
> doesn't understand.
> When defining values that are resolved from environment properties such as:
> {code:java}
> property.custom=${env:CUSTOM_PROPERTY_VALUE}{code}
> Spring will receive the literal value of '${env:CUSTOM_PROPERTY_VALUE}' and
> ultimately treat this as a default value for a property named 'env' instead
> of an environment variable reference.
> I was able to resolve this by updating ConfigurationPropertSource to use
> `source.getString(name)` instead, then Spring will receive the value Commons
> Configuration2 has resolved from the environment value and convert it
> accordingly on it's own.
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