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https://issues.apache.org/jira/browse/LOG4J2-3156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ali Akcan updated LOG4J2-3156:
------------------------------
    Description: 
I have an application that uses the log4j2(2.14.1) library for logging. In the 
application I use PatternLayout. The conversion patterns for the 
stackTraceElement seems a bit confusing to me. If I use the 'ex' conversion 
pattern for the stack traces I get the .... xx more view for nested exceptions. 
That is totally fine since I do not want to see duplicate things in the trace. 
In addition to this I would like to see the jar file name in each line of the 
stacktrace. 

By looking at the documentation of PatternLayout( 
[https://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout] ) I 
see that I can use xEx conversion. In the documentation it says 'The same as 
the %throwable conversion word but also includes class packaging information.' 
for the xEx conversion. However, when I use the xEx conversion in my pattern I 
see the '... xx more' collapsed views are expanded(e.g. ... 137 more becomes 
... 6 more and prints the 131 lines) and display the same lines as the 
parent/child exception. This results in lots of duplicated and redundant lines 
in the stacktrace. 

In the attachments you may see the differences of 'ex' and 'xEx' conversions 
for the same trace.

Patterns I used:

<Pattern>%d\{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %TC %c\{2} - %m%ex%n</Pattern>- 

-<!-- condensed stacktrace with no library information -->

<Pattern>%d\{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %TC %c\{2} - 
%m%xEx%n</Pattern>- 

-<!-- with library information but no condensed stacktrace -->

Is there a different way to keep the stacktrace showing ... xx more lines view 
in combination with the jar filename in each line in the trace?

  was:
I have an application that uses the log4j2(2.14.1) library for logging. In the 
application I use PatternLayout. The conversion patterns for the 
stackTraceElement seems a bit confusing to me. If I use the 'ex' conversion 
pattern for the stack traces I get the .... xx more view for nested exceptions. 
That is totally fine since I do not want to see duplicate things in the trace. 
In addition to this I would like to see the jar file name in each line of the 
stacktrace. 

By looking at the documentation of PatternLayout( 
[https://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout] ) I 
see that I can use xEx conversion. In the documentation it says 'The same as 
the %throwable conversion word but also includes class packaging information.' 
for the xEx conversion. However, when I use the xEx conversion in my pattern I 
see the '... xx more' collapsed views are expanded(e.g. ... 137 more becomes 
... 6 more and prints the 131 lines) and display the same lines as the 
parent/child exception. This results in lots of duplicated and redundant lines 
in the stacktrace. 

In the attachments you may see the differences of 'ex' and 'xEx' conversions 
for the same trace.

Patterns I used:

<Pattern>%d\{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %TC %c\{2} - %m%ex%n</Pattern> 
<!-- condensed stacktrace with no library information -->

<Pattern>%d\{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %TC %c\{2} - %m%xEx%n</Pattern> 
<!-- with library information but no condensed stacktrace -->

Is there a different way to keep the stacktrace showing ... xx more lines view 
in combination with the jar filename in each line in the trace?


> Stacktraces with xEx conversion are expanded resulting in duplicate/redundant 
> line in the trace
> -----------------------------------------------------------------------------------------------
>
>                 Key: LOG4J2-3156
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-3156
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Layouts
>    Affects Versions: 2.14.1
>            Reporter: Ali Akcan
>            Priority: Minor
>         Attachments: ex.txt, xEx.txt
>
>
> I have an application that uses the log4j2(2.14.1) library for logging. In 
> the application I use PatternLayout. The conversion patterns for the 
> stackTraceElement seems a bit confusing to me. If I use the 'ex' conversion 
> pattern for the stack traces I get the .... xx more view for nested 
> exceptions. That is totally fine since I do not want to see duplicate things 
> in the trace. In addition to this I would like to see the jar file name in 
> each line of the stacktrace. 
> By looking at the documentation of PatternLayout( 
> [https://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout] ) I 
> see that I can use xEx conversion. In the documentation it says 'The same as 
> the %throwable conversion word but also includes class packaging 
> information.' for the xEx conversion. However, when I use the xEx conversion 
> in my pattern I see the '... xx more' collapsed views are expanded(e.g. ... 
> 137 more becomes ... 6 more and prints the 131 lines) and display the same 
> lines as the parent/child exception. This results in lots of duplicated and 
> redundant lines in the stacktrace. 
> In the attachments you may see the differences of 'ex' and 'xEx' conversions 
> for the same trace.
> Patterns I used:
> <Pattern>%d\{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %TC %c\{2} - 
> %m%ex%n</Pattern>- 
> -<!-- condensed stacktrace with no library information -->
> <Pattern>%d\{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%t] %TC %c\{2} - 
> %m%xEx%n</Pattern>- 
> -<!-- with library information but no condensed stacktrace -->
> Is there a different way to keep the stacktrace showing ... xx more lines 
> view in combination with the jar filename in each line in the trace?



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