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https://issues.apache.org/jira/browse/CONFIGURATION-793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17208846#comment-17208846
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Cliff Evans commented on CONFIGURATION-793:
-------------------------------------------
Unfortunately, coming up with a fix looks way too complex for the time I have
available. What I have been able to do though, is rework my original test to
work with the test that [~oheger] added when the change that introduced the bug
was done. I wouldn't be sure whether the right place for the fix would be
around
org.apache.commons.configuration2.AbstractYAMLBasedConfiguration#constructHierarchy,
or in the code that accessed the in memory copy of the configuration. I hope
that this might help zero in on the issue and lead someone more skilled than I
to the correct fix for it. I've updated the main description above with this
information.
> Error reading a list of complex objects from JSON after 2.3
> -----------------------------------------------------------
>
> Key: CONFIGURATION-793
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-793
> Project: Commons Configuration
> Issue Type: Bug
> Affects Versions: 2.3
> Environment: JDK 11.0.4
> Reporter: Cliff Evans
> Priority: Major
>
> We have just attempted to move from version 2.2 to 2.7 and have encountered
> and issue whilst attempting to read a List from a JSON formatted
> configuration file.
> The issue appears to have been introduced in 2.3.
> Adding the following tests to
> org.apache.commons.configuration2.TestJSONConfiguration will demonstrate the
> change. These tests will pass against 2.2 but fail agains 2.3 (and 2.7.)
> https://issues.apache.org/jira/browse/CONFIGURATION-686 appears to have fixed
> access to lists of complex objects using the dot notation for strings (see
> testGetProperty_dictionaryInList() in TestJSONConfiguration) but has broken
> access to the list of complex objects.
>
> {noformat}
> @Test
> public void testGetList_nested_with_list()
> {
> assertEquals(Arrays.asList("col1", "col2"),
> jsonConfiguration.getList(String.class, "key4.key5"));
> }
> @Test
> public void testGetList() {
> final List<Map> configList = jsonConfiguration.getList(Map.class,
> "capitals");
> assertEquals(configList.size(), 2);
> assertEquals(configList.get(0).get("country"), "USA");
> assertEquals(configList.get(0).get("capital"), "Washington");
> assertEquals(configList.get(1).get("country"), "UK");
> assertEquals(configList.get(1).get("capital"), "London");
> }
> {noformat}
>
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