[CONFIGURATION-295] HierarchicalConfiguration.subset(...) misses an entry with the key equal to the subset prefix.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4
• Fix Version/s: 1.5

Environment

Commons configuration V1.4
Loaded configuration: An ordinary commons config XML file referring to two property files.

• Assignee: Oliver Heger
• Reporter: Eduard Rindt
• Created: 10/Sep/07 09:29
• Updated: 22/Aug/09 19:36
• Resolved: 14/Sep/07 20:27

Description

Having a HierarchicalConfiguration with entries alike:
test.sample = subset title
test.sample.boolean = true
test.sample.int = 123456
test.sample.text = I wish it worked!

When performing subset("test.sample"), I get a configuration of only three entries, the "subset title" value is not present (should have an empty string key).

The behaviour is in contradiction to Javadoc of the Configuration interface http://commons.apache.org/configuration/apidocs/org/apache/commons/configuration/Configuration.html#subset(java.lang.String)

Seems to me, that the bug is hidden in iterating the cloned configuration, where only children of the clone are processed, but not the root itself.