[jira] [Created] (LOG4J2-2531) Using method references to Logger methods leads to wrong source file and line number in log entry

[JIRA]

Stefan Küttner created LOG4J2-2531:
--------------------------------------

             Summary: Using method references to Logger methods leads to wrong 
source file and line number in log entry
                 Key: LOG4J2-2531
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2531
             Project: Log4j 2
          Issue Type: Bug
    Affects Versions: 2.11.1, 2.10.0, 2.9.1
            Reporter: Stefan Küttner


The following example produces a log message with origin {{Optional.ifPresent}} 
which is wrong.

{code:java}
package com.exxeta.log4j.test;

import java.util.Optional;
import java.util.function.Consumer;

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.appender.ConsoleAppender;
import org.apache.logging.log4j.core.config.Configurator;
import 
org.apache.logging.log4j.core.config.builder.api.AppenderComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder;
import 
org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilderFactory;
import org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration;

public class Log4jThreadAnalyzerErrorDemo
{
    private static final Logger           LOG;

    static
    {
        configureRootLogger();
        LOG = LogManager.getRootLogger();
    }

    public static void main(String[] args)
    {
        // This produces "INFO main - (Optional.java:159) - Optional.ifPresent: 
Hello World!"
        Optional.of("Hello World!").ifPresent(LOG::info);
    }

    private static void configureRootLogger()
    {
        ConfigurationBuilder<BuiltConfiguration> builder = 
ConfigurationBuilderFactory
                .newConfigurationBuilder();
        AppenderComponentBuilder console = builder.newAppender("Stdout", 
"CONSOLE").addAttribute("target",
                ConsoleAppender.Target.SYSTEM_OUT);
        console.add(builder.newLayout("PatternLayout").addAttribute("pattern",
                "%n%d{dd.MM.yyyy HH:mm:ss} %-5p %t - (%F:%L) - %C{1}.%M: 
%m%n"));
        builder.add(console);
        
builder.add(builder.newRootLogger(Level.INFO).add(builder.newAppenderRef("Stdout")));
        Configurator.initialize(builder.build());
    }
}
{code}

This may or may not be related to LOG4J2-1570.



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