[LOG4J2-783] PatternLayout's default charset should not be UTF-8

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.1, 2.0.2
• Fix Version/s: 2.1
• Component/s: Core
• Labels: charset default

Environment

Win8(Simplified Chinese), Tomcat 7

• Assignee: Remko Popma
• Reporter: Minglei Lee
• Created: 18/Aug/14 09:07
• Updated: 28/Jan/22 19:04
• Resolved: 18/Aug/14 13:10

Description

According to log4j2's manual about PatternLayout's charset attribute, if the attribute is not specified, the default system Charset will be used.

But in my environemnt (Win8 Simplified Chinese + Tomcat 7), if the attribute is not specified, the Chinese words cannot display properly in console. If I add charset="UTF-8" to <Console>'s <PatternLayout> element, the error still exists. But if I modify it to charset="GBK", the problem can be resolved.

So I think, The default charset is UTF-8, not the default system Charset as the manual announced. I got the source file, and found it in PatternLayout's Builder inner class:

private Charset charset = Charsets.UTF_8;

I modify it to:

private Charset charset = Charset.defaultCharset();

and remove the charset attribute in XML's <PatternLayout> element, the Chinese words can display properly as expected.

So, I think it may be a bug and reported it here.

Thanks!

Issue Links

• relates to: LOG4J2-3372 ConsoleAppender on Windows does not use platform default encoding
• relates to: LOG4J2-1636 Console Appender does not pick up Oracle Java 8's sun.stdout.encoding and sun.stderr.encoding