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https://issues.apache.org/jira/browse/LOG4J2-2026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gary Gregory resolved LOG4J2-2026.
----------------------------------
Resolution: Fixed
Fix Version/s: 2.9.1
In git master.
Any exceptions aside from a standard configuration exception will be caught and
logged to the internal Log4j status logger as an ERROR.
Please verify and close this issue.
> java.lang.AbstractMethodError:
> javax.xml.parsers.DocumentBuilderFactory.setFeature()
> ------------------------------------------------------------------------------------
>
> Key: LOG4J2-2026
> URL: https://issues.apache.org/jira/browse/LOG4J2-2026
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.9.0
> Reporter: Leon Finker
> Assignee: Gary Gregory
> Priority: Minor
> Fix For: 2.9.1
>
>
> Hi,
> Tested 2.9.0 RC1 and noticed one issue due to xerces 2.6.2 version being used
> on one big app. It causes log4j2 failure to initialize (changes are from
> LOG4J2-1959):
> Exception in thread "main" java.lang.AbstractMethodError:
> javax.xml.parsers.DocumentBuilderFactory.setFeature(Ljava/lang/String;Z)V
> at
> org.apache.logging.log4j.core.config.xml.XmlConfiguration.disableDtdProcessing(XmlConfiguration.java:205)
> at
> org.apache.logging.log4j.core.config.xml.XmlConfiguration.newDocumentBuilder(XmlConfiguration.java:194)
> at
> org.apache.logging.log4j.core.config.xml.XmlConfiguration.<init>(XmlConfiguration.java:92)
> at
> org.apache.logging.log4j.core.config.xml.XmlConfigurationFactory.getConfiguration(XmlConfigurationFactory.java:46)
> at
> org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(ConfigurationFactory.java:239)
> at
> org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:369)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:237)
> at
> org.apache.logging.log4j.core.config.Configurator.initialize(Configurator.java:158)
> at
> org.apache.logging.log4j.core.config.Configurator.initialize(Configurator.java:131)
> at
> org.apache.logging.log4j.core.config.Configurator.initialize(Configurator.java:101)
> at
> org.apache.logging.log4j.core.config.Configurator.initialize(Configurator.java:188)
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