Has anyone ever seen this behavior before: 2012-10-11 16:48:04.418 ALWAYS [Thread-1] camiant.services.qp.AbstractQPInfoImpl$EventListenerWorker.run:247 - AbstractQPInfoImpl.EventListenerWorker shutdown complete. 2012-10-11 16:48:04.415 ALWAYS [Thread-4] camiant.backout.utils.FileProgressIndicator.run:91 - Interrupted!!! .418 is showing up before .415 Please see my filter below for ALWAYS if that even remotely has anything to do with this. <turboFilter class="ch.qos.logback.classic.turbo.MarkerFilter"> <Name>AlwaysTurboFilter</Name> <Marker>ALWAYS</Marker> <OnMatch>ACCEPT</OnMatch> </turboFilter> It happens to both STDOUT and my log file in the same order. Subsequent runs haven't show this and it is happening during shutdown so I am not really that concerned about it, but I figured I would report and see if there's an explanation for it. Here is my jar information.. slf4j-api-1.6.6.jar logback-classic-1.0.6.jar logback-core-1.0.6.jar Thanks, Dave