Morten, At great risk of opening a java logging APIs debate, you might consider using the slf4j and logback gems (http://rjack.rubyforge.org/) for your logging needs.
In particular, the combination supports aggregating logging from all common APIs/sources including java.util.logging, and logging from ruby is via a ruby-core Logger compatible adapter to SLF4J, and slf4j/logback doesn't insist on using callers java class name in the output: require 'rubygems' require 'logback' Logback.config_console( :full => true ) log = SLF4J['com.test.xxx'] log.info 'logging from jruby' 2009-05-08 14:40:05,382 INFO com.test.xxx - logging from jruby BTW: slf4j -> java.util.logging shows the same NativeMethodAccessorImpl class name. Not sure if you can replace that field in the output with a given name instead (like with logback,log4j, etc.) I doubt this is a jruby problem per say. --David On Thu, 2009-05-07 at 06:47 -0500, Morten Christensen (JIRA) wrote: > java.util.logging misbehavior when called from JRuby > ---------------------------------------------------- > > Key: JRUBY-3628 > URL: http://jira.codehaus.org/browse/JRUBY-3628 > Project: JRuby > Issue Type: Bug > Components: Core Classes/Modules, Java Integration > Affects Versions: JRuby 1.2 > Environment: Java 1.6, JRuby 1.2 > Reporter: Morten Christensen > l > > When calling Java's java.util.logging system within Jruby, the logger name is > wrongly set to "sun.reflect.NativeMethodAccessorImpl" instead of the logger > name specified by the call to Logger. Apart from making things difficult when > reading the log, this also cause the normal java log filters to malfunction > (i.e the log messages from jruby may not appear unless a special/default log > level is set to log sun.reflect also). This is a major problem with > java/jruby projects, as proper logging behavior is essential for production > systems! > > To reproduce try this under IRB: > log = java.util.logging.Logger.getLogger('com.test.xxx') > log.addHandler(java.util.logging.ConsoleHandler.new()) > log.log(java.util.logging.Level::SEVERE, 'Logging from JRuby') > > The correct result would be something like: > May 7, 2009 1:31:13 PM com.test.xx ??? > SEVERE: Logging from JRuby > > But JRuby 1.2 incorrectly writes: > May 7, 2009 1:31:13 PM sun.reflect.NativeMethodAccessorImpl invoke0 > SEVERE: Logging from JRuby > >
