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https://issues.apache.org/jira/browse/CONFIGURATION-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569612#comment-13569612
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Oliver Heger commented on CONFIGURATION-524:
--------------------------------------------
Thank you for the report.
There have been some changes recently in the current development version in the
field of interpolation. However, I am pretty sure that the problem still exists.
> AbstractConfiguration does not interpolate correctly after cloning
> ------------------------------------------------------------------
>
> Key: CONFIGURATION-524
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-524
> Project: Commons Configuration
> Issue Type: Bug
> Components: Build
> Reporter: Juan Diego Gago Perez
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> If you clone a Configuration, does not clone the StrSubstitutor when it has
> been instanced, so the cloned copy has the same StrSubstituor than the
> original composite. If you change a property in the original compoiste it is
> changed in the cloned copy.
> Way to reproduce it :
> {code}
> public class SampleConfiguration {
> public static void main(final String[] args) {
> final String sentence = "SELECT * FORM TABLE WHERE YEAR=${year} and
> QUARTER=${quarter}";
> final CompositeConfiguration cp = new CompositeConfiguration();
> cp.addProperty("year", "2000");
> cp.addProperty("quarter", "2");
> final AbstractConfiguration clonedConfig = (AbstractConfiguration)
> ConfigurationUtils.cloneConfiguration(cp);
> cp.setProperty("year", "2001");
> clonedConfig.setProperty("year", "2002");
> System.out.println("Original sentence " +
> PropertyConverter.interpolate(sentence, cp));
> System.out.println("Cloned sentence " +
> PropertyConverter.interpolate(sentence, clonedConfig));
> final AbstractConfiguration clonedConfig2 = (AbstractConfiguration)
> ConfigurationUtils.cloneConfiguration(cp);
> cp.setProperty("year", "2003");
> clonedConfig2.setProperty("year", "2004");
> System.out.println("Original sentence " +
> PropertyConverter.interpolate(sentence, cp));
> System.out.println("Cloned (after interpolate with same
> strSubstitutor )sentence "
> + PropertyConverter.interpolate(sentence, clonedConfig2));
> }
> }
> {code}
> The solution can be to make in the following ways:
> Make the clone of the strSubstitutor in the AbstractConfigutration class.
> Create a clone method inside the StrSubtitutor and invoke it from the
> AbstractConfiguration class.
> Set null the strSubstituror when the clone method is invoked in the Abstract
> Configuration class. The next invocation to interpolate methos instances the
> strSubstitutor.
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