Re: In some cases, using lookups for threadcontext does not output logs.

I am glad to hear our latest and greatest works for you :-)

Gary


On Sat, Dec 18, 2021, 06:11 <[email protected]> wrote:

> We have confirmed that this issue has been resolved in 2.17.0.
>
> Thanks to the contributors.
>
> On 2021/12/15 16:09, taketake wrote:
> > Hi everyone.
> >
> > I was checking the operation of 2.16.0.
> >
> > There, I found a case where no logs were output when I specified
> > lookups for ThreadContext.
> >
> > Here is the code I tested.
> >
> >
> > [log4j2.xml]
> > <?xml version="1.0" encoding="UTF-8"?>
> > <Configuration status="off">
> >   <appenders>
> >     <Console name="main" target="SYSTEM_OUT">
> >       <PatternLayout pattern="%m - $${ctx:userid}%n" />
> >     </Console>
> >   </appenders>
> >   <Loggers>
> >     <Root level="INFO" additivity="false">
> >       <AppenderRef ref="main"/>
> >     </Root>
> >   </Loggers>
> > </Configuration>
> >
> >
> > [Java]
> > import org.apache.log4j.LogManager;
> > import org.apache.log4j.Logger;
> > import org.apache.logging.log4j.ThreadContext;
> >
> > public class Test {
> >   public static void main(String[] args) {
> >     Logger logger = LogManager.getLogger(Test.class);
> >
> >     ThreadContext.put("userid", "${java:version}");
> >     logger.warn("case1");
> >
> >     ThreadContext.put("userid", "${java:xxx}");
> >     logger.warn("case2");
> >
> >     ThreadContext.put("userid", "${ctx:userid}");
> >     logger.warn("case3");
> >
> >     ThreadContext.put("userid", "${ctx:xxx}");
> >     logger.warn("case4");
> >   }
> > }
> >
> >
> > [stdout]
> > case1 - Java version 11.0.3
> > case4 - ${ctx:xxx}
> >
> >
> > Look at stdout.
> > There is no output for case2 and case3.
> >
> > I think this is a bug, but what do you guys think?
> >
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