We're having the same issue with SLF4J 1.5.11 (the version distributed with ActiveMQ 5.5.0).
On Apr 8, 2011, at 7:35 AM, dcheckoway <dchecko...@gmail.com> wrote: > I suppose I should also mention that we're using slf4j 1.6.1. Not sure if > that has anything to do with this, since the stack trace does show it > happening in slf4j land... > > > org.slf4j > slf4j-api > 1.6.1 > runtime > > > org.slf4j > slf4j-jdk14 > 1.6.1 > runtime > > > ----- > Dan Checkoway > dcheckoway gmail com > -- > View this message in context: > http://activemq.2283324.n4.nabble.com/ConcurrentModificationException-in-embedded-5-5-0-broker-tp3435952p3435958.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com.