[LOG4J2-1888] Log4j throws a java.nio.charset.UnsupportedCharsetException: cp65001

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.2
• Fix Version/s: 2.9.0
• Component/s: Core
• Assignee: Unassigned
• Reporter: Misagh Moayyed
• Created: 24/Apr/17 18:51
• Updated: 05/Oct/17 07:05
• Resolved: 15/Aug/17 23:45

Description

Running a Java spring boot web application using a "java -jar" type of command with a pretty vanilla log4j2.xml file in it, I see the following error.

2017-04-24 11:47:45,338 main ERROR Unable to inject fields into builder class for plugin type class org.apache.logging.log4j.core.appender.ConsoleAppender, element Console. java.nio.charset.UnsupportedCharsetException: cp65001
        at java.nio.charset.Charset.forName(Charset.java:531)
        at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:146)
        at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:134)
        at org.apache.logging.log4j.core.appender.ConsoleAppender$Target.getCharset(ConsoleAppender.java:85)
        at org.apache.logging.log4j.core.appender.ConsoleAppender$Target$1.getDefaultCharset(ConsoleAppender.java:71)
        at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:218)
        at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:185)
        at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244)

I am running the "run" command on Windows 10 64x inside a ConEmu console. If I switch to Babun, then I don't see the error.

This may not exactly be a "bug", but it would be great to not crash the app and fallback to a more accepting encoding perhaps.

Issue Links

• relates to: LOG4J2-2053 Exception java.nio.charset.UnsupportedCharsetException: cp65001 in 2.9.0