The actual cause of this issue was multiple Spring versions being installed.
The spring-dm feature doesn't appear to be compatible with Spring 4.2.2. To fix the issue I just appended the required Spring version to the spring feature declaration in the karaf-maven-plugin config as follows. If a version isn't specified then all versions of the Spring feature declared in the Karaf feature xml appear to be included, which breaks spring-dm:- ... <feature>spring/3.2.14.RELEASE_1</feature> .. -- View this message in context: http://karaf.922171.n3.nabble.com/Karaf-4-0-3-unable-to-start-bundle-activemq-osgi-5-13-0-tp4044640p4044686.html Sent from the Karaf - User mailing list archive at Nabble.com.
