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https://issues.apache.org/jira/browse/CONFIGURATION-684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16305708#comment-16305708
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Fabien Renaud commented on CONFIGURATION-684:
---------------------------------------------
I understand why the escaping is done. I wish the default engine wasn't doing
such escaping as I find this unnecessarily confusing when starting to use the
lib (and I don't want to write my own engine nor configure one). Logging a
warning or throwing an exception would have been just as fine imo.
Closing this ticket.
> YAMLConfiguration keys with double dots
> ---------------------------------------
>
> Key: CONFIGURATION-684
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-684
> Project: Commons Configuration
> Issue Type: Bug
> Reporter: Fabien Renaud
> Labels: discussion, help-wanted
>
> h2. Issue
> Loading a YAML configuration with dotted keys causes dots to be duplicated in
> the keys of the YAMLConfiguration object.
> h2. Repro
> 100% repro:
> file.yml:
> {code}some.key.with.dots: 123{code}
> {code}
> package foo;
> import org.apache.commons.configuration2.YAMLConfiguration;
> import
> org.apache.commons.configuration2.builder.FileBasedConfigurationBuilder;
> import org.apache.commons.configuration2.builder.fluent.Parameters;
> import org.apache.commons.configuration2.ex.ConfigurationException;
> public class App {
> public static void main(String[] args) throws ConfigurationException {
> Parameters params = new Parameters();
> FileBasedConfigurationBuilder<YAMLConfiguration> builder1 =
> new FileBasedConfigurationBuilder<>(YAMLConfiguration.class)
>
> .configure(params.fileBased().setFileName("file.yml"));
>
> YAMLConfiguration conf = builder1.getConfiguration();
> conf.getKeys().forEachRemaining(System.out::println);
> System.out.println("---");
> YAMLConfiguration yaml = new YAMLConfiguration();
> yaml.read(new
> InputStreamReader(ClassLoader.getSystemResourceAsStream("file.yml")));
> yaml.getKeys().forEachRemaining(System.out::println);
> }
> }
> {code}
> prints
> {code}some..key..with..dots
> ---
> some..key..with..dots
> {code}
> That is a serious bug for a configuration system. The issue may easily go
> untested for some keys and only reveal itself on production.
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