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https://issues.apache.org/jira/browse/CONFIGURATION-793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17208113#comment-17208113
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Gary D. Gregory commented on CONFIGURATION-793:
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[~mipper]
Thank you for your report.
May you provide your unit test as a PR with a fix if you have one?
Gary
> Error reading a list 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.
> The test below demonstrates the issue. This test will pass against 2.2 but
> fail agains 2.3 (and 2.7.)
>
> {noformat}
> package org.apache.commons.configuration2;
> import org.apache.commons.configuration2.ex.ConfigurationException;
> import org.junit.Test;
> import java.io.ByteArrayInputStream;
> import java.io.InputStream;
> import java.util.List;
> import java.util.Map;
> import static java.nio.charset.StandardCharsets.UTF_8;
> import static org.junit.Assert.assertNotNull;
> public class ConfigurationTest {
> private static final String JSON = "{\n" +
> " \"myList\": [\n" +
> " {\n" +
> " \"att1\": \"one\"\n" +
> " }\n" +
> " ]" +
> "}\n";
> @Test
> public void loadConfiguration()
> throws ConfigurationException {
> JSONConfiguration jsonConfiguration = new JSONConfiguration();
> InputStream inputStream = new
> ByteArrayInputStream(JSON.getBytes(UTF_8));
> jsonConfiguration.read(inputStream);
> final List<Map> configList = jsonConfiguration.getList(Map.class,
> "myList");
> assertNotNull(configList);
> }
> }
> {noformat}
>
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