> How is it possible a "java.lang.NoClassDefFoundError: > org/apache/activemq/util/IOExceptionSupport" exception if I didn't > restart Tomcat server ? > Any ideas ?
This sounds like you have a JAR / library conflict somewhere. Specifically, the class that you mention (IOExceptionSupport) was moved from the 'core' package to the 'client' package in this commit: https://git-wip-us.apache.org/repos/asf?p=activemq.git;a=commitdiff;h=9a8f6e415db43a4e43ad42a87b3617b3641aa07d Which I think was part of the 5.8.0 release (http://activemq.apache.org/activemq-580-release.html). Specifically, that release includes the comment "New modules may effect your maven pom dependencies activemq-core has been replaced with activemq-client and activemq-broker. The various message stores have their own activemq-xx-store module." So I would suggest that you check your classpath for the ActiveMQ dependencies and make sure that you don't have a < 5.8 version lingering somewhere. Hope that helps T
