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https://issues.apache.org/jira/browse/CONFIGURATION-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484898
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Oliver Heger commented on CONFIGURATION-259:
--------------------------------------------
Is it possible that your data structures contain some ambiguity, so that the
merge algorithm cannot decide, which nodes are list nodes? The following
section of the user guide discusses this topic:
http://jakarta.apache.org/commons/configuration/howto_combinedconfiguration.html#Node_combiners
If this is the case, you can explicitly mark the affected nodes as list nodes
(this is explained in the section about DefaultConfigurationBuilder).
> ConfigurationFactory Merge is broken
> ------------------------------------
>
> Key: CONFIGURATION-259
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-259
> Project: Commons Configuration
> Issue Type: Bug
> Affects Versions: 1.3
> Environment: Windows XP running Eclipse, JDK 1.4.2
> Reporter: Karl Banke
> Attachments: personendetails.xml, personensuche.xml, testconfig.xml,
> TestConfiguration.java
>
>
> I am trying to merge two Configuration using the ConfigurationFactory and the
> additional tag. It turns out that subsequent operations on the merged data
> provide wrong results. In particular, after creating a particular subset from
> a loaded configuration, the subset is empty. Strangely enough, when using
> DefaultConfigurationBuilder to load exactly the same configurations this
> works properly.
> So when initializing the configuration as follows, I get the following error:
> URL configURL = getClass().getResource(configFile);
> ConfigurationFactory factory = new ConfigurationFactory();
> factory.setConfigurationURL(configURL);
> myConfig = factory.getConfiguration();
> 60043
> java.util.NoSuchElementException: 'HvNr' doesn't map to an existing object
> at
> org.apache.commons.configuration.AbstractConfiguration.getLong(AbstractConfiguration.java:743)
> at
> de.awd.vertriebsportal.portal.person.TestConfiguration.main(TestConfiguration.java:84)
> Exception in thread "main"
> But when initializing it like this everything works properly
> DefaultConfigurationBuilder builder = new DefaultConfigurationBuilder();
> builder.setURL(configURL);
> myConfig = builder.getConfiguration();
> 60043
> 54564
> I will attach full source code and xml files
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