Hi All, The method org.apache.logging.log4j.web.appender.ServletAppender.append(LogEvent) is defined as:
@Override public void append(final LogEvent event) { servletContext.log(((AbstractStringLayout) getLayout()).toSerializable(event)); } Instead of: @Override public void append(final LogEvent event) { servletContext.log(((AbstractStringLayout) getLayout()).toSerializable(event)*, event.getThrown()*); } Which does not give the best information we have to the servlet context logging. The tricky part is that to avoid logging the exception twice like in our test org.apache.logging.log4j.web.ServletAppenderTest. To avoid the double logging, we could (1) document not using a %exception in the pattern layout. That or (yikes) (2) provide a variation of the toSerializable(event) like toSerializable(event, false), where the boolean is an ignoreException parameter. It seems there are plenty of places where exceptions are treated specially already, this would be another. I like (1) better because it is simpler. Thoughts? Thank you, Gary -- E-Mail: garydgreg...@gmail.com | ggreg...@apache.org Java Persistence with Hibernate, Second Edition <http://www.manning.com/bauer3/> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/> Spring Batch in Action <http://www.manning.com/templier/> Blog: http://garygregory.wordpress.com Home: http://garygregory.com/ Tweet! http://twitter.com/GaryGregory