Log4j跟踪级别中没有行号

Question

This is my log4j.properties :

log4j.rootLogger=TRACE, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{dd.MM.yyyy HH:mm:ss} %-5p %c{3}:%L - %m%n

%L is the line number.

In my class I have this:

LOGGER.trace("Connection: " + connection);

But in console i don't see line (it's just "?"):

23.12.2014 05:57:26 TRACE Mysql:? - Connection: com.mysql.jdbc.JDBC4Connection@46116f2

If i use LOGGER.info or something else, besides .trace, it works fine.

Who knows why?

Answer 1

It was a bug which got fixed in the later versions. I verified with 1.2.15 and it works as expected.