Laszlo Hujber created CONFIGURATION-848:
-------------------------------------------
Summary: SubsetConfiguration with subclasses of
AbstractHierarchicalConfiguration
Key: CONFIGURATION-848
URL: https://issues.apache.org/jira/browse/CONFIGURATION-848
Project: Commons Configuration
Issue Type: Bug
Affects Versions: 2.11.0, 2.10.1, 2.10.0
Reporter: Laszlo Hujber
A bug occurs when using {{SubsetConfiguration}} with concrete subclasses of
{{{}AbstractHierarchicalConfiguration{}}}. This issue likely happens because
{{AbstractHierarchicalConfiguration}} does not override:
{code:java}
protected Iterator<String> getKeysInternal(String prefix, String delimiter) {
}
{code}
The relevant pull request that introduced this bug is
[#300|https://github.com/apache/commons-configuration/pull/300].
Refer to the test case that passes in version 2.9.
{code:java}
@Test
public void testSubsetWithJSONConfiguration() throws FileNotFoundException,
ConfigurationException {
final JSONConfiguration jsonConfiguration = new JSONConfiguration();
jsonConfiguration.read(new
FileReader(ConfigurationAssert.getTestFile("test.json").getAbsolutePath()));
final SubsetConfiguration subset = new
SubsetConfiguration(jsonConfiguration, "capitals(0)", ".");
assertFalse(subset.isEmpty());
assertEquals(2, subset.size());
assertEquals("USA", subset.getString("country"));
}
{code}
Actual Behavior:
* {{isEmpty()}} returns {{{}true{}}}.
* {{size()}} returns {{{}0{}}}.
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