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https://issues.apache.org/jira/browse/CONFIGURATION-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12522254
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Wesley Miaw commented on CONFIGURATION-293:
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Maybe examples would help to illustrate the issue. I took "It is not strictly
forbidden to manipulate a CombinedConfiguration directly, but the results may
be unpredictable." to mean if I tried to play around with its insides in a way
other than the public interface.
> HierarchicalConfiguration.clearTree() does not remove named property
> --------------------------------------------------------------------
>
> Key: CONFIGURATION-293
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-293
> Project: Commons Configuration
> Issue Type: Bug
> Affects Versions: 1.4
> Reporter: Wesley Miaw
> Attachments: bug-config.xml, bug-override.xml, bug-test.properties
>
>
> HierarchicalConfiguration.clearTree(String) calls
> HierarchicalConfiguration.removeNode(ConfigurationNode) which removes nothing
> if the passed in ConfigurationNode has no parent. Having no parent is true of
> nodes that have the root for their parent (it seems to me) as well as for
> nodes that have no properties defined "above" them. Here is an example:
> config.addProperty("a.b.c", "c");
> config.addProperty("a.b.c.d", "d");
> config.addProperty("a.b.c.d.e", "e");
> The following sequence of calls will fail:
> config.clearTree("a.b.c");
> assert config.containsKey("a.b.c") == false;
> The following sequence of calls will succeed:
> config.clearTree("a.b.c.d");
> assert config.containsKey("a.b.c.d") == false;
> assert config.containsKey("a.b.c.d.e") == false;
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